Release notes from Arduino

Release 3.1.2

2023-03-20T22:25:05Z

Release 3.1.2 Notes

Second patch release (includes 3.1.1 and 3.1.0)

Core

Fix weak assignment in flash_hal.h (#8884)
Remove stale patch required for older SDK releases (#8858)
Show 'Exception' cause and 'epc1=...' address when interrupted by Soft WDT (#8851)
Issue warning when reallocating String buffer too much (#8821, #8849)
Fix stack offset and division-by-zero origin in postmortem message (#8839)
IPAddress: Properly handle u8 pointers when assigning and comparing (#8818)

Build system

General

Don't use -g++ or -gcc suffixes in command line arguments (#8829)
Log all exceptions in upload.py (#8813)

mkbuildoptglobals.py

Assert python version (#8886)
Resolve Windows path encoding problems (#8860)
Fix not finding preferences.txt (#8814, #8812)

Libraries

Ethernet: fix library.properties (#8880)
EspSoftwareSerial 8.0.1: onReceive bug fix and new namespace (#8869)
Make http-server less verbose in debug mode (#8850)
SdFat: Fix long operations triggering watchdog (#8844)
LowPowerDemo: Fix typo (#8841)
SdFat: FS HAL mode fixes & test (#8833)
Ticker: Safeguard for internal storage that may be changed during callback execution (#8820)
HTTPClient example: Fix typo (#8819)
Basichttpsclient example: fingerprint handled by update scripts (#8311)

Documentation

Expand the hardware debugging limitations section (#8879)

CI

Emulation on host: fix UDP seek&peek (#8827)

Release 3.1.1 Notes

Core

Transparently manage recurrent scheduled functions in delay() (#8802)
Fix C builds when including coredecls.h and / or core_esp8266_features.h (#8795)
Typo in EAP patch (#8797)
Fix clang warnings related to constexpr usage (#8796)
Fix printf format in Updater debug messages (#8791)

Examples

Remove 400b stack allocation from Advanced Web example (#8793)

Build system

Also apply #8226 portable python fix to mkbuildopts script (#8804)
Attempt to fix elf2bin.py not always working on Windows (#8799)

CI

Document updating the GitHub deployment keys (#8790, #8792)

Release 3.1 Notes

Great additions

NONOS SDK 3.0.5 (#8736, #8746, #8755, #8770)
Support for global build defines and options for Arduino IDE (#8504)
WPA2-Enterprise (#8529, #8566)
(experimental) Flash-size agnostic builds (#6690)

Additions

DHCP custom option(s) for DhcpServer (#8582)
Updater lifetime callbacks (#8653)
Add WiFiClient::abort() (#8738)

Notable changes

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
Update to EspSoftwareSerial 7.0.0 (#8781)
Keep Servo in the same position after re-attaching (#8753)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
mDNS - valid board for _adruino._tcp service (#8634)
Allow longer delays for Ticker (#8625)
ArduinoOTA and ESP8266HTTPUpdate no longer stop all WiFiClient/WiFiUDP (#8598)
WiFiServer - rename available() to accept(), deprecate available() (#8419)
Avoid out-of-bounds reads in String (#8463, #8597)
Fix compilation issues and update toolchain (#8393, #8613)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
lwIP v2.1.3 + various fixes (#8319, #8596)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
I2C clock phase correction in START condition (#8383)
MMU functions strict aliasing fixes (#8290)
Add FSTools with examples of how to convert between SPIFFS and LittleFS (#7696)
Rename esp_yield() to esp_suspend(), update esp_yield() to also call esp_schedule() (#7148)

Breaking changes

None

Changes

SDK

Added NONOS SDK 3.0.5 (#8736, #8770)
Resolve flash address issues with SDK 3.0.x (#8755)
Heap addendum to handle changes in NON-OS SDK 3.0.x (#8746)
Fix missing NONOS SDK 2.2.x 19-03-13 (#7965, #8363)

Core

Fix flashinit panic not printing (#8762)
Fix Stream::parseFloat() (#8785)
Added missing DRAM fallback to pvPortCallocIram, pvPortZallocIram, and (#8765)
Fix pre-SDK Cache_Read_Enable for PUYA flash (#8658)
OTA: Updater lifetime callbacks (#8653)
Nice stack smashing postmortem message (#8670)
Ensure xPortGetFreeHeapSize reports DRAM (#8680)
SPI: writePattern() should not call setDataBits(0) (#8636)
Correctly handle unaligned address in EspClass::flashWrite u8 overload (#8605)
Add esp_is_8285(), check for ESP8285 at runtime (#8604)
Allow to use temporary strings in configTime (#8606)
Allow UART1 to be inverted (#8601)
Avoid reading past end of non-zero terminated char arrays (#8597)
Fix DTR offset value (#8586)
WString: remove operator==(const __FlashStringHelper*) (#8569)
Permit using the Updater _hash function, even if we don't have a signature appended to the image (#8507, #8545)
Test: fixing itoa implementation and clean-up of tests and test Makefile (#8531)
WString: unify numeric conversion and fix assignments (#8526)
Fix OOM print handling of NULL file pointer (#8527)
Heap panic / abort cleanup (#8465)
Heap init code improvements and updates (#8458)
Fix, calloc now fails on extra-large request. (#8482)
Flash-size agnostic builds (#6690)
WString: avoid writing to const storage (#8463)
Fix Stream::read into buffer ignoring every second byte (#8452, #8453)
Fix VM Address mask (#8440)
Import getLocalTime() from esp32/Arduino (#8413)
Sync umm_malloc style with upstream (#8426)
StreamConstPtr: disallow passing a String temporary (#8410)
Fix umm_blocks() (#8429)
Missing includes in StreamString.h (#8367)
Implement esp_yield() as a replacement for delay(0) (#7148)
Update mmu_get... and mmu_set... (#8290)
Reduce build size by implementing flash string overloads for String (#8106)

Libraries - FS

Update to LittleFS 2.5.1 (#8543, #8786)
Fix File::readString to work with binary data (#8742)
Add FSTools with examples of how to convert between SPIFFS and LITTLEFS. (#7696)
Correctly using fs:: namespace in SD & SDFS (#8493)
Move ESP8266SDFat library to master, not branch (#8460)
Fix info.usedBytes calculation giving weird result (#8445)
LittleFS: add overrides for Stream::send (#8386)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
Clean up SpeedTest output, avoid div-by-0 (#8340)

Libraries - Network

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
lwip2: cleanup logging and use newlib printf (#8769)
Consistent netif->status_callback (#8676)
Make WiFi/Ethernet interface compatible with Arduino Ethernet API (#8645)
Fix WiFi/Ethernet hostname management (#8626)
Add WiFiClient::abort() (#8738)
Provide wl_tcp_state as tcp_state alias (#8609)
Do not call tcp/udp ::stopAll() when it is not required to do so (#8598)
Fix lwip2 ping (#8596)
DHCP custom option(s) for DhcpServer (#8582)
lwIP on ethernet: examples (#8395)
Define lwIP's s32/u32 to int (#8560)
Update RFC 5246 URL (#8564)
lwIP: v2.1.3 + dhcp fixes (#8319)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
WiFi library ArduinoWiFiServer update (#8238)
Place deprecated attribute in front of function (#8258)

Libraries - WiFi

Allow passing beacon interval to SoftAP config (#8695)
Optimize disconnect method in WiFiSTA class (#8760)
Add eraseap option to WiFi disconnect method. (#8758)
Allow to access bss_info after scan (#8683)
Patch eap.o memory leak (#8566)
Fix double-free when connecting to WPA2-Enterprise networks (#8529)
Initialize SoftAP DhcpServer object on demand (#8546)
Correctly access WIFI_EVENT_MODE_CHANGE event info (#8343)
Return WL_WRONG_PASSWORD when calling begin() w/ invalid password (#8229)

Libraries - TLS/SSL

Don't return true with WiFiClientSecureBearSSL::connected() when really disconnected (#8330)
Only check the actual used length of the hash (#8709)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
SSL examples updates (#8643)
Update example certs (#8642)
Update to latest BearSSL (#8600)
Delete operator=(Self&) when copy constructor is deleted (#8535)
Update sessions example to show speed difference (#8528)

Libraries - ESP8266WebServer

Stop incorrectingly increase number of arguments when setting up arg("plain") (#8599)
Use String when working with Basic authentication (#8548)
Fix missing implementation of send stream by reference (#8533)
Drop inactive connection when another is waiting to improve page load time (#8216)
Optional ETag support, custom generator function (#8227)

Libraries - Wire

Buffer length improvements (#8398)
Allow to override buffer length (#8390)
I2C clock phase correction in START condition (#8383)

Libraries - HTTPUpdate

Allow passing custom HTTPClient (#8773)
Correct class name in readme.rst (#8751)
Add DEBUG payload output (#8745)
Add setClientTimeout() (#8740)
Fix missing include in OTA example (#8667)
Catch a possible null-dereference (#8508)
Allow manually setting MD5 checksum (#8204)

Libraries - HTTPClient

Fix connection reuse for different URIs in ::begin (#8466)
Prevent empty user-agent in header (#8411)
Movable HTTPClient and fixing WiFiClient copy (#8237)
Add writeToPrint (#8056)
Pass authorization String by value (#8225)
Add ::DELETE() (#8214)

Libraries - ArduinoOTA

Fix compilation when no global MDNS instance is available (#8478)
Add ::end() (#8379)

Libraries - mDNS

Restart mDNS when network state changes (#8705)
Also increase # of sends when a send fails (#8641)
Report valid Board ID (#8634)
Fix timeout type (#8394)
Remove obsolete comments about legacy mDNS impl. (#8377)

Libraries - others

Update to EspSoftwareSerial 7.0.0 (#8260, #8295, #8353, #8370, #8373, #8541, #8739, #8754, #8781)
Remove temporary buffer in common ConfigFile example .ino (#8298)
DNS Server: Add DNS forwarder to DNSServer (#7237)
Netbios: Use current netif address in response (#8622)
Servo: Keep Servo in the same position after re-attaching (#8753)
HTTPUpdateServer Allow external POSTS (CORS) (#6824)
Ticker: Allow longer delays and some internal updates (#8625)

Tools

Stack decoder script (#8661)
Do not show python traceback when esptool fails (#8603, #8608)
Table output for segment size script (#8551, #8572, #8573)

Documentation

Correction on Heap API available from ISR (#8708)
We are no longer using Travis CI (#8706)
Update WiFi scan docs (#8685)
Fix Sphinx build warnings (#8686)
Add missing license headers (#8630)
Update FS documentation (#8619)
Document side effects for wifi-off-at-boot (#8614)
Correct "list" formatting (#8610)
Update broken links (#8589)
Add documentation entry about compiler warnings (#8492)
Remove Python installation from OTA doc (#8417)
comments on Arduino flush() method (#8318)

Boards

Add Wemos ESP-WROOM-02 board (#8664)
MOD-WIFI-ESP8266(-DEV) update (#8297)

Build system

PIO: Fix CPPDEFINES loop (#8744)
ldscripts: Fix typo in section list (#8726)
Add debug support for build.opt (#8637)
Rebuilt HAL w/latest toolchain and fixed configure (#8615)
PIO: Move _GNU_SOURCE from CCFLAGS to CPPDEFINES (#8579)
PIO: Improve support for hand-written asm source files (#8583)
platform.txt: Override python3 anon pipe encoding to utf-8 for 'tools/sizes.py' (#8570)
Add support for global build defines and options (#8504, #8565)
Table output for segment size script (#8551)
Properly quote paths for GCC warnings files (#8523)
Fix minor typo in generated comment (#8503)
Migrate from astyle to clang-format (#8464)
Minor git install documentation fix (#8488)
Remove obsolete PWMRANGE in keywords.txt (#8447)
Correctly link with precompiled libraries (#8392)
Remove warnings, errors during host tests in CI (#8358)
Respect linking order of libraries for PlatformIO (#8263)

CI

Remove paths / paths-ignore condition from CI (#8704)
Rework CI workflows (#8688)
emulation on host: fix incorrect lwIP DNS implementation (#8627)
Github Actions updates and setup dependabot (#8624)
Fix python warnings and update device tests runner (#8623)
emulation on host: avoid closing STDIN (#8577)
emulation on host: allow parallel compilation units (#8574)
CI: update arduino IDE url (#8563)
emulation on host: fix internal udp management (#8561)
emulation on host: fix for latest changes in DNSServer (#8559)
Correction to run_CI_locally.sh (#8552)
ci: make sure to kill gpg related processes (#8549)
Error even w/warnings disabled for no-return fcns (#8495)
gitignore: Skip .git{,hub} files when packaging (#8743)
emulation on host: minor updates (#8454)
Emulation on host: updates (#8409)

Release 3.1.1

2023-01-14T23:31:02Z

Release 3.1.1 Notes

(includes 3.1.0 release notes)

Core

Non-interruptible delay(), wait for the full duration (#8802)
Transparently manage recurrent scheduled functions in delay() (#8802)
Fix C builds when including coredecls.h and / or core_esp8266_features.h (#8795)
Typo in EAP patch (#8797)
Fix clang warnings related to constexpr usage (#8796)
Fix printf format in Updater debug messages (#8791)

Examples

Remove 400b stack allocation from Advanced Web example (#8793)

Build system

Also apply #8226 portable python fix to mkbuildopts script (#8804)
Attempt to fix elf2bin.py not always working on Windows (#8799)

CI

Document updating the GitHub deployment keys (#8790, #8792)

Release 3.1.0 Notes

Great additions

NONOS SDK 3.0.5 (#8736, #8746, #8755, #8770)
Support for global build defines and options for Arduino IDE (#8504)
WPA2-Enterprise (#8529, #8566)
(experimental) Flash-size agnostic builds (#6690)

Additions

DHCP custom option(s) for DhcpServer (#8582)
Updater lifetime callbacks (#8653)
Add WiFiClient::abort() (#8738)

Notable changes

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
Update to EspSoftwareSerial 7.0.0 (#8781)
Keep Servo in the same position after re-attaching (#8753)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
mDNS - valid board for _adruino._tcp service (#8634)
Allow longer delays for Ticker (#8625)
ArduinoOTA and ESP8266HTTPUpdate no longer stop all WiFiClient/WiFiUDP (#8598)
WiFiServer - rename available() to accept(), deprecate available() (#8419)
Avoid out-of-bounds reads in String (#8463, #8597)
Fix compilation issues and update toolchain (#8393, #8613)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
lwIP v2.1.3 + various fixes (#8319, #8596)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
I2C clock phase correction in START condition (#8383)
MMU functions strict aliasing fixes (#8290)
Add FSTools with examples of how to convert between SPIFFS and LittleFS (#7696)
Rename esp_yield() to esp_suspend(), update esp_yield() to also call esp_schedule() (#7148)

Breaking changes

None

Changes

SDK

Added NONOS SDK 3.0.5 (#8736, #8770)
Resolve flash address issues with SDK 3.0.x (#8755)
Heap addendum to handle changes in NON-OS SDK 3.0.x (#8746)
Fix missing NONOS SDK 2.2.x 19-03-13 (#7965, #8363)

Core

Fix flashinit panic not printing (#8762)
Fix Stream::parseFloat() (#8785)
Added missing DRAM fallback to pvPortCallocIram, pvPortZallocIram, and (#8765)
Fix pre-SDK Cache_Read_Enable for PUYA flash (#8658)
OTA: Updater lifetime callbacks (#8653)
Nice stack smashing postmortem message (#8670)
Ensure xPortGetFreeHeapSize reports DRAM (#8680)
SPI: writePattern() should not call setDataBits(0) (#8636)
Correctly handle unaligned address in EspClass::flashWrite u8 overload (#8605)
Add esp_is_8285(), check for ESP8285 at runtime (#8604)
Allow to use temporary strings in configTime (#8606)
Allow UART1 to be inverted (#8601)
Avoid reading past end of non-zero terminated char arrays (#8597)
Fix DTR offset value (#8586)
WString: remove operator==(const __FlashStringHelper*) (#8569)
Permit using the Updater _hash function, even if we don't have a signature appended to the image (#8507, #8545)
Test: fixing itoa implementation and clean-up of tests and test Makefile (#8531)
WString: unify numeric conversion and fix assignments (#8526)
Fix OOM print handling of NULL file pointer (#8527)
Heap panic / abort cleanup (#8465)
Heap init code improvements and updates (#8458)
Fix, calloc now fails on extra-large request. (#8482)
Flash-size agnostic builds (#6690)
WString: avoid writing to const storage (#8463)
Fix Stream::read into buffer ignoring every second byte (#8452, #8453)
Fix VM Address mask (#8440)
Import getLocalTime() from esp32/Arduino (#8413)
Sync umm_malloc style with upstream (#8426)
StreamConstPtr: disallow passing a String temporary (#8410)
Fix umm_blocks() (#8429)
Missing includes in StreamString.h (#8367)
Implement esp_yield() as a replacement for delay(0) (#7148)
Update mmu_get... and mmu_set... (#8290)
Reduce build size by implementing flash string overloads for String (#8106)

Libraries - FS

Update to LittleFS 2.5.1 (#8543, #8786)
Fix File::readString to work with binary data (#8742)
Add FSTools with examples of how to convert between SPIFFS and LITTLEFS. (#7696)
Correctly using fs:: namespace in SD & SDFS (#8493)
Move ESP8266SDFat library to master, not branch (#8460)
Fix info.usedBytes calculation giving weird result (#8445)
LittleFS: add overrides for Stream::send (#8386)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
Clean up SpeedTest output, avoid div-by-0 (#8340)

Libraries - Network

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
lwip2: cleanup logging and use newlib printf (#8769)
Consistent netif->status_callback (#8676)
Make WiFi/Ethernet interface compatible with Arduino Ethernet API (#8645)
Fix WiFi/Ethernet hostname management (#8626)
Add WiFiClient::abort() (#8738)
Provide wl_tcp_state as tcp_state alias (#8609)
Do not call tcp/udp ::stopAll() when it is not required to do so (#8598)
Fix lwip2 ping (#8596)
DHCP custom option(s) for DhcpServer (#8582)
lwIP on ethernet: examples (#8395)
Define lwIP's s32/u32 to int (#8560)
Update RFC 5246 URL (#8564)
lwIP: v2.1.3 + dhcp fixes (#8319)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
WiFi library ArduinoWiFiServer update (#8238)
Place deprecated attribute in front of function (#8258)

Libraries - WiFi

Allow passing beacon interval to SoftAP config (#8695)
Optimize disconnect method in WiFiSTA class (#8760)
Add eraseap option to WiFi disconnect method. (#8758)
Allow to access bss_info after scan (#8683)
Patch eap.o memory leak (#8566)
Fix double-free when connecting to WPA2-Enterprise networks (#8529)
Initialize SoftAP DhcpServer object on demand (#8546)
Correctly access WIFI_EVENT_MODE_CHANGE event info (#8343)
Return WL_WRONG_PASSWORD when calling begin() w/ invalid password (#8229)

Libraries - TLS/SSL

Don't return true with WiFiClientSecureBearSSL::connected() when really disconnected (#8330)
Only check the actual used length of the hash (#8709)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
SSL examples updates (#8643)
Update example certs (#8642)
Update to latest BearSSL (#8600)
Delete operator=(Self&) when copy constructor is deleted (#8535)
Update sessions example to show speed difference (#8528)

Libraries - ESP8266WebServer

Stop incorrectingly increase number of arguments when setting up arg("plain") (#8599)
Use String when working with Basic authentication (#8548)
Fix missing implementation of send stream by reference (#8533)
Drop inactive connection when another is waiting to improve page load time (#8216)
Optional ETag support, custom generator function (#8227)

Libraries - Wire

Buffer length improvements (#8398)
Allow to override buffer length (#8390)
I2C clock phase correction in START condition (#8383)

Libraries - HTTPUpdate

Allow passing custom HTTPClient (#8773)
Correct class name in readme.rst (#8751)
Add DEBUG payload output (#8745)
Add setClientTimeout() (#8740)
Fix missing include in OTA example (#8667)
Catch a possible null-dereference (#8508)
Allow manually setting MD5 checksum (#8204)

Libraries - HTTPClient

Fix connection reuse for different URIs in ::begin (#8466)
Prevent empty user-agent in header (#8411)
Movable HTTPClient and fixing WiFiClient copy (#8237)
Add writeToPrint (#8056)
Pass authorization String by value (#8225)
Add ::DELETE() (#8214)

Libraries - ArduinoOTA

Fix compilation when no global MDNS instance is available (#8478)
Add ::end() (#8379)

Libraries - mDNS

Restart mDNS when network state changes (#8705)
Also increase # of sends when a send fails (#8641)
Report valid Board ID (#8634)
Fix timeout type (#8394)
Remove obsolete comments about legacy mDNS impl. (#8377)

Libraries - others

Update to EspSoftwareSerial 7.0.0 (#8260, #8295, #8353, #8370, #8373, #8541, #8739, #8754, #8781)
Remove temporary buffer in common ConfigFile example .ino (#8298)
DNS Server: Add DNS forwarder to DNSServer (#7237)
Netbios: Use current netif address in response (#8622)
Servo: Keep Servo in the same position after re-attaching (#8753)
HTTPUpdateServer Allow external POSTS (CORS) (#6824)
Ticker: Allow longer delays and some internal updates (#8625)

Tools

Stack decoder script (#8661)
Do not show python traceback when esptool fails (#8603, #8608)
Table output for segment size script (#8551, #8572, #8573)

Documentation

Correction on Heap API available from ISR (#8708)
We are no longer using Travis CI (#8706)
Update WiFi scan docs (#8685)
Fix Sphinx build warnings (#8686)
Add missing license headers (#8630)
Update FS documentation (#8619)
Document side effects for wifi-off-at-boot (#8614)
Correct "list" formatting (#8610)
Update broken links (#8589)
Add documentation entry about compiler warnings (#8492)
Remove Python installation from OTA doc (#8417)
comments on Arduino flush() method (#8318)

Boards

Add Wemos ESP-WROOM-02 board (#8664)
MOD-WIFI-ESP8266(-DEV) update (#8297)

Build system

PIO: Fix CPPDEFINES loop (#8744)
ldscripts: Fix typo in section list (#8726)
Add debug support for build.opt (#8637)
Rebuilt HAL w/latest toolchain and fixed configure (#8615)
PIO: Move _GNU_SOURCE from CCFLAGS to CPPDEFINES (#8579)
PIO: Improve support for hand-written asm source files (#8583)
platform.txt: Override python3 anon pipe encoding to utf-8 for 'tools/sizes.py' (#8570)
Add support for global build defines and options (#8504, #8565)
Table output for segment size script (#8551)
Properly quote paths for GCC warnings files (#8523)
Fix minor typo in generated comment (#8503)
Migrate from astyle to clang-format (#8464)
Minor git install documentation fix (#8488)
Remove obsolete PWMRANGE in keywords.txt (#8447)
Correctly link with precompiled libraries (#8392)
Remove warnings, errors during host tests in CI (#8358)
Respect linking order of libraries for PlatformIO (#8263)

CI

Remove paths / paths-ignore condition from CI (#8704)
Rework CI workflows (#8688)
emulation on host: fix incorrect lwIP DNS implementation (#8627)
Github Actions updates and setup dependabot (#8624)
Fix python warnings and update device tests runner (#8623)
emulation on host: avoid closing STDIN (#8577)
emulation on host: allow parallel compilation units (#8574)
CI: update arduino IDE url (#8563)
emulation on host: fix internal udp management (#8561)
emulation on host: fix for latest changes in DNSServer (#8559)
Correction to run_CI_locally.sh (#8552)
ci: make sure to kill gpg related processes (#8549)
Error even w/warnings disabled for no-return fcns (#8495)
gitignore: Skip .git{,hub} files when packaging (#8743)
emulation on host: minor updates (#8454)
Emulation on host: updates (#8409)

Release 3.1.0

2023-01-06T21:14:08Z

Release 3.1.0 Notes

Great additions

NONOS SDK 3.0.5 (#8736, #8746, #8755, #8770)
Support for global build defines and options for Arduino IDE (#8504)
WPA2-Enterprise (#8529, #8566)
(experimental) Flash-size agnostic builds (#6690)

Additions

DHCP custom option(s) for DhcpServer (#8582)
Updater lifetime callbacks (#8653)
Add WiFiClient::abort() (#8738)

Notable changes

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
Update to EspSoftwareSerial 7.0.0 (#8781)
Keep Servo in the same position after re-attaching (#8753)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
mDNS - valid board for _adruino._tcp service (#8634)
Allow longer delays for Ticker (#8625)
ArduinoOTA and ESP8266HTTPUpdate no longer stop all WiFiClient/WiFiUDP (#8598)
WiFiServer - rename available() to accept(), deprecate available() (#8419)
Avoid out-of-bounds reads in String (#8463, #8597)
Fix compilation issues and update toolchain (#8393, #8613)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
lwIP v2.1.3 + various fixes (#8319, #8596)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
I2C clock phase correction in START condition (#8383)
MMU functions strict aliasing fixes (#8290)
Add FSTools with examples of how to convert between SPIFFS and LittleFS (#7696)
Rename esp_yield() to esp_suspend(), update esp_yield() to also call esp_schedule() (#7148)

Breaking changes

None

Changes

SDK

Added NONOS SDK 3.0.5 (#8736, #8770)
Resolve flash address issues with SDK 3.0.x (#8755)
Heap addendum to handle changes in NON-OS SDK 3.0.x (#8746)
Fix missing NONOS SDK 2.2.x 19-03-13 (#7965, #8363)

Core

Fix flashinit panic not printing (#8762)
Fix Stream::parseFloat() (#8785)
Added missing DRAM fallback to pvPortCallocIram, pvPortZallocIram, and (#8765)
Fix pre-SDK Cache_Read_Enable for PUYA flash (#8658)
OTA: Updater lifetime callbacks (#8653)
Nice stack smashing postmortem message (#8670)
Ensure xPortGetFreeHeapSize reports DRAM (#8680)
SPI: writePattern() should not call setDataBits(0) (#8636)
Correctly handle unaligned address in EspClass::flashWrite u8 overload (#8605)
Add esp_is_8285(), check for ESP8285 at runtime (#8604)
Allow to use temporary strings in configTime (#8606)
Allow UART1 to be inverted (#8601)
Avoid reading past end of non-zero terminated char arrays (#8597)
Fix DTR offset value (#8586)
WString: remove operator==(const __FlashStringHelper*) (#8569)
Permit using the Updater _hash function, even if we don't have a signature appended to the image (#8507, #8545)
Test: fixing itoa implementation and clean-up of tests and test Makefile (#8531)
WString: unify numeric conversion and fix assignments (#8526)
Fix OOM print handling of NULL file pointer (#8527)
Heap panic / abort cleanup (#8465)
Heap init code improvements and updates (#8458)
Fix, calloc now fails on extra-large request. (#8482)
Flash-size agnostic builds (#6690)
WString: avoid writing to const storage (#8463)
Fix Stream::read into buffer ignoring every second byte (#8452, #8453)
Fix VM Address mask (#8440)
Import getLocalTime() from esp32/Arduino (#8413)
Sync umm_malloc style with upstream (#8426)
StreamConstPtr: disallow passing a String temporary (#8410)
Fix umm_blocks() (#8429)
Missing includes in StreamString.h (#8367)
Implement esp_yield() as a replacement for delay(0) (#7148)
Update mmu_get... and mmu_set... (#8290)
Reduce build size by implementing flash string overloads for String (#8106)

Libraries - FS

Update to LittleFS 2.5.1 (#8543, #8786)
Fix File::readString to work with binary data (#8742)
Add FSTools with examples of how to convert between SPIFFS and LITTLEFS. (#7696)
Correctly using fs:: namespace in SD & SDFS (#8493)
Move ESP8266SDFat library to master, not branch (#8460)
Fix info.usedBytes calculation giving weird result (#8445)
LittleFS: add overrides for Stream::send (#8386)
Update to SdFat 2.1.1 with UTF-8 support (#8355)
Clean up SpeedTest output, avoid div-by-0 (#8340)

Libraries - Network

hostByName timeout fixes (#8787)
PHY status API for ethernet drivers (#8784)
lwip2: cleanup logging and use newlib printf (#8769)
Consistent netif->status_callback (#8676)
Make WiFi/Ethernet interface compatible with Arduino Ethernet API (#8645)
Fix WiFi/Ethernet hostname management (#8626)
Add WiFiClient::abort() (#8738)
Provide wl_tcp_state as tcp_state alias (#8609)
Do not call tcp/udp ::stopAll() when it is not required to do so (#8598)
Fix lwip2 ping (#8596)
DHCP custom option(s) for DhcpServer (#8582)
lwIP on ethernet: examples (#8395)
Define lwIP's s32/u32 to int (#8560)
Update RFC 5246 URL (#8564)
lwIP: v2.1.3 + dhcp fixes (#8319)
WiFiServer - 'rename' available() to accept() (#8419)
WiFiServer - don't inherit from Server class (#8418)
WiFi library ArduinoWiFiServer update (#8238)
Place deprecated attribute in front of function (#8258)

Libraries - WiFi

Allow passing beacon interval to SoftAP config (#8695)
Optimize disconnect method in WiFiSTA class (#8760)
Add eraseap option to WiFi disconnect method. (#8758)
Allow to access bss_info after scan (#8683)
Patch eap.o memory leak (#8566)
Fix double-free when connecting to WPA2-Enterprise networks (#8529)
Initialize SoftAP DhcpServer object on demand (#8546)
Correctly access WIFI_EVENT_MODE_CHANGE event info (#8343)
Return WL_WRONG_PASSWORD when calling begin() w/ invalid password (#8229)

Libraries - TLS/SSL

Don't return true with WiFiClientSecureBearSSL::connected() when really disconnected (#8330)
Only check the actual used length of the hash (#8709)
Fix WiFiClientSecure remoteIP(), remotePort(), localIP(), localPort() functions (#8693)
SSL examples updates (#8643)
Update example certs (#8642)
Update to latest BearSSL (#8600)
Delete operator=(Self&) when copy constructor is deleted (#8535)
Update sessions example to show speed difference (#8528)

Libraries - ESP8266WebServer

Stop incorrectingly increase number of arguments when setting up arg("plain") (#8599)
Use String when working with Basic authentication (#8548)
Fix missing implementation of send stream by reference (#8533)
Drop inactive connection when another is waiting to improve page load time (#8216)
Optional ETag support, custom generator function (#8227)

Libraries - Wire

Buffer length improvements (#8398)
Allow to override buffer length (#8390)
I2C clock phase correction in START condition (#8383)

Libraries - HTTPUpdate

Allow passing custom HTTPClient (#8773)
Correct class name in readme.rst (#8751)
Add DEBUG payload output (#8745)
Add setClientTimeout() (#8740)
Fix missing include in OTA example (#8667)
Catch a possible null-dereference (#8508)
Allow manually setting MD5 checksum (#8204)

Libraries - HTTPClient

Fix connection reuse for different URIs in ::begin (#8466)
Prevent empty user-agent in header (#8411)
Movable HTTPClient and fixing WiFiClient copy (#8237)
Add writeToPrint (#8056)
Pass authorization String by value (#8225)
Add ::DELETE() (#8214)

Libraries - ArduinoOTA

Fix compilation when no global MDNS instance is available (#8478)
Add ::end() (#8379)

Libraries - mDNS

Restart mDNS when network state changes (#8705)
Also increase # of sends when a send fails (#8641)
Report valid Board ID (#8634)
Fix timeout type (#8394)
Remove obsolete comments about legacy mDNS impl. (#8377)

Libraries - others

Update to EspSoftwareSerial 7.0.0 (#8260, #8295, #8353, #8370, #8373, #8541, #8739, #8754, #8781)
Remove temporary buffer in common ConfigFile example .ino (#8298)
DNS Server: Add DNS forwarder to DNSServer (#7237)
Netbios: Use current netif address in response (#8622)
Servo: Keep Servo in the same position after re-attaching (#8753)
HTTPUpdateServer Allow external POSTS (CORS) (#6824)
Ticker: Allow longer delays and some internal updates (#8625)

Tools

Stack decoder script (#8661)
Do not show python traceback when esptool fails (#8603, #8608)
Table output for segment size script (#8551, #8572, #8573)

Documentation

Correction on Heap API available from ISR (#8708)
We are no longer using Travis CI (#8706)
Update WiFi scan docs (#8685)
Fix Sphinx build warnings (#8686)
Add missing license headers (#8630)
Update FS documentation (#8619)
Document side effects for wifi-off-at-boot (#8614)
Correct "list" formatting (#8610)
Update broken links (#8589)
Add documentation entry about compiler warnings (#8492)
Remove Python installation from OTA doc (#8417)
comments on Arduino flush() method (#8318)

Boards

Add Wemos ESP-WROOM-02 board (#8664)
MOD-WIFI-ESP8266(-DEV) update (#8297)

Build system

PIO: Fix CPPDEFINES loop (#8744)
ldscripts: Fix typo in section list (#8726)
Add debug support for build.opt (#8637)
Rebuilt HAL w/latest toolchain and fixed configure (#8615)
PIO: Move _GNU_SOURCE from CCFLAGS to CPPDEFINES (#8579)
PIO: Improve support for hand-written asm source files (#8583)
platform.txt: Override python3 anon pipe encoding to utf-8 for 'tools/sizes.py' (#8570)
Add support for global build defines and options (#8504, #8565)
Table output for segment size script (#8551)
Properly quote paths for GCC warnings files (#8523)
Fix minor typo in generated comment (#8503)
Migrate from astyle to clang-format (#8464)
Minor git install documentation fix (#8488)
Remove obsolete PWMRANGE in keywords.txt (#8447)
Correctly link with precompiled libraries (#8392)
Remove warnings, errors during host tests in CI (#8358)
Respect linking order of libraries for PlatformIO (#8263)

CI

Remove paths / paths-ignore condition from CI (#8704)
Rework CI workflows (#8688)
emulation on host: fix incorrect lwIP DNS implementation (#8627)
Github Actions updates and setup dependabot (#8624)
Fix python warnings and update device tests runner (#8623)
emulation on host: avoid closing STDIN (#8577)
emulation on host: allow parallel compilation units (#8574)
CI: update arduino IDE url (#8563)
emulation on host: fix internal udp management (#8561)
emulation on host: fix for latest changes in DNSServer (#8559)
Correction to run_CI_locally.sh (#8552)
ci: make sure to kill gpg related processes (#8549)
Error even w/warnings disabled for no-return fcns (#8495)
gitignore: Skip .git{,hub} files when packaging (#8743)
emulation on host: minor updates (#8454)
Emulation on host: updates (#8409)

Release 3.0.2

2021-07-26T22:37:34Z

Release 3.0.2 Notes

(includes 3.0.1 and 3.0.0 release notes)

Core

Internal API: add comments and corrections (#8201)
String: Avoid copying past end of buffer in ::concat (#8198)
Call umm_init just before starting SDK (#8207)
Clean up use of "byte" as a type. uint8_t or (C++17) std::byte are better. (#8090)
Fix PRxxx printf format macros (#8222)

Libraries

Update to EspSoftwareSerial bug fix release 6.12.7 (#8195)
Fixes failing https connections to HelloServerBearSSL (w/MMU48KIRAM) (#8206)
Use valid categories in library.properties of bundled libraries (#8221)
Netdump printf fix (#8215)
Fix with NO_GLOBAL_INSTANCES (#8184)
Make multiple FS begin calls noops() SDFS/LittleFS (#8235)

CI

Copy released JSON to board URL, not new one (#8182)

Build system

Make mkdir.py work under python<3.5 (#8194)
Certificate and public keys automatic updater (#8218)
Use only installed Python on Windows (#8226)

Board definitions

Add wifi kit 8 to boards (#8190)

Release 3.0.1 Notes

Breaking Changes

BREAKING: "i2s.h" removed, I2S library added (#8108)

Core

Make String reallocation warning more descriptive (#8131)
Normalize core header's include guard. (#8110)
makeword: sync header and implementation (#8097)
Use optimal bundled library names (#8088) (#8098)
Added IRAM_ATTR to _stopPWM() so that digitalWrite() would work inside ISR. Fixes #8043 (#8044) (#8048)
makecorever.py: restore ARDUINO_ESP8266_GIT_VER even without .git/ (#8138)

IDE

Update debug level list link (#8172)
Add missing menu.UploadTool name definition (#8153)

Libraries - LittleFS

Re-add mklittlefs to package.json, fixing "ESP8266 LittleFS Data Upload" (#8060)
Don't crash when including LittleFS.h w/no FS (#8173)

Libraries - SD/SDFS

SDFS: fix AvailableForWrite: do not always return 0 when space is available (#8167)

Libraries - ESP8266httpUpdate

ESP266httpUpdate: remove dead API and fix doc (#8063)

Libraries - ESP8266WiFi

Fix stopAllExcept with WiFiClientSecure (#8136)
LwipIntfDev.h - apply static DNS config (#8076)

Libraries - SoftwareSerial

Update EspSoftwareSerial to bug fix release 6.12.6

Libraries - ESP8266HTTPClient

ESP8266HTTPClient: remove old example (#8111)
Change protocol detection so uppercase or lowercase works (#8137)

Toolchain

Update toolchain to gcc 10.3 w/patches (#8104) (#8103)
Update toolchain to fix pgm_read_float_unaligned (#8091)
Remove include and lib folders removed since 3.0.0 core (#8125)
Add errors on invalid/missing function return type (#8165)
GNU source: honoring libc requirements (#8147)

PlatformIO

PIO: use CCFLAGS for -Werror (#8175) (#8092)
Documentation: Note about options on PIO (#8174)

Documentation

Fix readthedoc python dependencies (#8166)
Documentation: Arduino IDE options: fix hyperlinks and format, options (#8158) (#8154)

CI / Release / Environment

Add code-spell spelling checks to CI (#8067)
Release script: protect bash variables and add logs, major/minor/rev macro addition, BASH fix (#8074) (#8126) (#8127) (#8168)
Remove some no longer applicable artifacts from .gitignore (#8170)

Release 3.0.0 Notes

Great additions

PoC cache configuration control (aka +16KB heap!) (#7060)
Hardware WDT Stack Dump Tool (#7010)
Update to GCC 10.2 (#7607)

Breaking: Deprecation - Removal

BREAKING: httpclient: remove deprecated API (#7617)
BREAKING: Update Arduino.h, remove TIM_DIV265 (#7440)
BREAKING: Remove lwip-v1.4 specific code (#7436)
BREAKING: Remove axTLS from code and documentation (#7437)

Breaking changes summary

BREAKING: WString: return bool instead of unsigned char (#7939)
BREAKING: wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
BREAKING: Disable WiFi at boot by default (#7902, #7990, #7993)
BREAKING: base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING: Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
BREAKING: Upgrade to upstream newlib 4.0.0 release (64 bits time_t) (#7708)
BREAKING: Change servo defaults to safer defaults (#7023)
BREAKING: Add Print::availableForWrite method (#7658)
BREAKING: Change return EEPROM.end() to bool (#7630)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
BREAKING: Add Wrong Password wifi status case (#7652)
BREAKING: analogWriteRange 8-bit default (#7456)
BREAKING: HTTPClient: RequestHandler: Pass String by const reference (#6583)

Boot

eboot: .RODATA, upstream uzlib, move CRC, save 112 bytes (#7844)
Update eboot to build with C17, not C99 standard (#7837, #7838)
Fix eboot crash with exception 28. ets_printf() should take pointer argument. (#7666)
Use 32b loads to set print strings (#7545)
Comment out verify step in eboot.c (#7468)

Core

BREAKING: WString: return bool instead of unsigned char (#7939)
ESP class should be a singleton: make all member functions static. (#8006)
Updated HWDT to use IRAM_ATTR instead of ICACHE_RAM_ATTR. (#8013, #8018)
Hardware WDT Stack Dump Tool (#7010)
WString: direct operator overloads instead of StringSumHelper (#7781)
Clean up ICACHE_RAM_ATTR in VM PR (#7924)
Added ESP32 compatible methods for setting/getting sleep mode (#7901)
Enable 128K virtual memory via external SPI SRAM (#6994)
Stream::send() (#6979, #7935, #7951, #7987, #7995)
[BREAKING] base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING - Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
OOM debug: warn about String reallocation (#7908)
OOM: avoid warn when calling *alloc(0) (#7909)
String: add missing long long operator implementations (#7888)
Support to reboot into UART download mode (#7854, #7897)
String: compatibility with 64 bits scalars (#7863)
Update toolchain to support std::remainder (#7849)
allow to set pin to OUTPUT_OPEN_DRAIN in analogWriteMode (#7841)
Add 24-bit mode to I2S (#7835)
Hexdump fix&update (#7831)
improve silicon aes_unwrap (#7773)
Supersede #3856, remove undef min/max (#7824)
Add stub for analogReference() (#7809)
UART: add yield (#7799)
BREAKING - Upgrade to upstream newlib 4.0.0 release (#7708)
Update to latest uzlib upstream (#7776, #7782)
i2s: adds i2s_rxtxdrive_begin(enableRx, enableTx, driveRxClocks, driveTxClocks) (#7748)
PoC cache configuration control (#7060, #7754, #7767, #7768, #7812, #7816, #7820, #7790)
Receiving no data in Updater is an error (#7729)
PROGMEM compatibility changes to String (#7724)
schedule_recurrent_function_us should be in iram (#7713)
Re-implement PWM generator (#7715, #7712, #7022, #7231, #7800, #7996)
WString: Optimize a bit (#7553)
Fix sntp_get_real_time prototype in header (#7707)
Provide String::indexOf for a char* needle (#7706)
Fix newlib to support <+-nn> timezone names (#7699, #7702)
BREAKING: Add Print::availableForWrite method (#7658)
settimeofday_cb: distinguish from user or sntp (#7637)
Add Copyright notice to Schedule.h (#7653)
BREAKING: Add Wrong Password wifi status case (#7652)
New flash writing method with offset/memory/size alignment handling (#7514)
Add missing sntp_init/sntp_stop (#7628)
Use direct member initialization instead of ctr initialisation (#7558)
Prevent rewriting Updater_Signing.h if content unchanged (#7627)
WString: c_str() returns null pointer after move (#7611)
WString: mark move ctor as noexcept (#7610)
sntp: use one time source and fix unsynchronized sntp time stamp (#7595)
Add clear method to IPAddress (#7586)
Check also if IP is not IPADDR_NONE (#7585)
Fix gzip+signed OTA error (#7577)
new w/ OOM now aborts by defaults, or throw an exception (#7536)
getCpuFreqMHz(): fix when F_CPU is not defined (#7554)
Updater MD5 cleanup on begin (#7534)
Add synthetic IntegerDivideByZero exception (#7496)
avoid circular #include dependence for PolledTimeout (#7356)
base64 class uses String, adding harmless #include (#7517)
sys/pgmspace.h: Refactor inline asm (#7510)
Add SerialEvent() callback to loop processing (#7505)
Remove warnings when building NoAssert (#7499)
BREAKING - analogWriteRange 8-bit default (#7456)
BREAKING - Pass String by const reference [3.0] (#6583)

Libraries - softserial

Maintenance release 6.12.3: better dependency declarations for Platformio (#8030)
EspSoftwareSerial 6.12.2: Inlining push() functions that must be in IRAM for calling from ISRs (#7986)
Bug-fix release 6.12.1: a documentation error was reported by a user; dropped bit-patterns that masked the stop-bit fixed. (#7938)
EspSoftwareSerial minor release 6.12.0 completes adaptation to new Stream::send() (#7923)
Minor EspSoftwareSerial release 6.11.7, for deprecated ICACHE_RAM_ATTR in upcoming ESP8266 Arduino core 3.0.0. (#7922)
EspSoftwareSerial, bump up Arduino library manager related files 6.11.6 (#7891)
Update to EspSoftwareSerial 6.11.5 (#7889)
EspSoftwareSerial bug-fix release 6.11.4 (#7862)
Update to EspSoftwareSerial 6.11.3: prepares for ESP8266 Arduino core PR 6979. (#7840)
EspSoftwareSerial 6.11.2: Delegate<> assign operators added. (#7815)
Minor EspSoftwareSerial release 6.11.1 (#7804)
Minor EspSoftwareSerial release 6.11.0 (#7802)
EspSoftwareSerial bug fix release 6.10.1: preciseDelay() could delay() for extremely long time, if period duration was exceeded on entry. (#7771)
EspSoftwareSerial 6.10.0: override keyword for recent Print::availableForWrite() addition (#7710)
EspSoftwareSerial 6.9.0: data/strings in flash alignment handling fix. Yielding during write() improvement. (#7604)

Libraries - FS

Update mklittlefs executable (#7906)
Track creation time of LittleFS FS (#7873)
Invalid read return value fix (#7817)
Update to SdFat 2.0.2, speed SD access (#7779)
Rationalize File timestamp callback (#7785)
Update to LittleFS v2.3 (#7787)

Libraries - Network

added ArduinoWiFiServer with send-to-all-clients functionality (#7612)
internal: rename ClientContext::wait_until_sent() to wait_until_acked() (#7896)
Added ESP32 compatible methods for setting/getting hostname (#7900)
AP & dhcp-server: fix uninitialized variables (#7905)
Netdump: Avoid UB and abort on nullptr buffer (#7822)
lwip2: use pvPortXalloc/vPortFree and "-free -fipa-pta" (#7793)
more lwIP physical interfaces (#6680)
Netump (#7527, #7659)
replace old Ethernet Arduino-library with v2, submoduled (#6812)

Library - WiFi

WiFi: clean up AP SSID setter & getter, support 32 chars (#7941)
[BREAKING] wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
[BREAKING] Disable WiFi at boot by default (#7902)
Added broadcastIP method to WiFiSTA class (#7899)
WIFI_RESUME improve speed and example (#7877)
WiFiServer.cpp: Fix warning (#7755)
update documentation example (#7697)
Refactor WiFi scan example (#7655)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
Reduce codesize of setOutputPower (#7572)

Library - TLS/SSL

Fix a warning (#8014)
Adding comment to ignore SSL certificate in sample code. (#7994)
Update Root Certificate in example (#7932)
Adds the method setSSLVersions() also to WiFiClientSecure in order to use that new feature. (#7925)
Add setSSLVersion call to SSL object (#7920)
Allow users to inherit and override CertStore (#7827)
Reduce BearSSL code size by not -O2 FSMs (#7807)
WiFiServerSecure: Cache SSL sessions (#7774)
WiFiClientSecure: use context (#7680)
Update to latest BearSSL as of Nov 2020 (#7732)
Add Stream loaders for BearSSL (#7675)
Catch and display SSL errors for fatal alerts (#7681)
Fix error when debug enabled but no port chosen (#7648)
Remove stray axtls refs, deprecated compat funcs (#7626)
Fix error message typo (#7581)
Update DigestAuthorization.ino (Simple example update) (#7579)
Update certs-from-mozilla.py (#7573, #7578)
Use root cert, not fingerprint for api.github.com (#7490)
Update FP for tls.mbed.org (#7479)
Change BSSL_CertStore test URL (#7370)
Update to BearSSL version lost in GCC10 update (#7453)

Library - Webserver

ESP8266WebServer: Add variadic template version of collectHeaders() (#7296)
Fix header FSM in webserver, fix Windows uploads (#7805)
ETag support for WebServer (#7709)
Rewrite multipart boundary detection (#7728)
Fixed bug in parsing POST file uploads (#7543)
Fix long password validation in WebServer (#7676)
FIX MIME-Type for txt-suffix (#7608)
FIX StaticRequestHandler crashes when cache_header is null and DEBUG_ESP_CORE is enabled (#7609)
Avoid #includes with a surrounding namespace (#7560)
webserver hook: allow to handle external http protocol (#7459, #7492, #7515)
Made ESP8266WebServer::client() return a reference (fixes #7075) (#7080)
WebServer: Allow client to send many requests on the same connection (#7414)
webserver: do not count "plain" in argument list (#6768)
webserver: string optimization (#7446)

Libraries - others

Resolve "PWM-locked" / "phase-locked" waveform merge leftover in Servo lib (#7978)
Add I2S class support (#7874)
At MDNS.end() also release services (#7859)
AVRISP: Prevent nullptr dereference on OOM (#7823)
HTTPClient: fix error handling (#7811)
LEAmDNS: one instance for all interfaces (#7786 - #7540 #7615 #7636 #7640)
Add the missing 'rename' method wrapper in SD library. (#7766)
Update to ESP8266HTTPClient.cpp for no Content-Length (#7691)
BREAKING: Change servo defaults to safer defaults (#7023)
Hook up custom timestamp proc for SD/SDFS (#7686)
BREAKING: Change return EEPROM.end() to bool (#7630)
httpclient: remove deprecated API (#7617)
Avoid float-double-conversion (#7559)
Use direct member initialization instead of ctr initialisation (#7556)
Basic authentication with ESP8266httpUpdate (#7190)

Documentation

doc: analogRead must not be called to frequently with WiFi is on (#7981)
comments in ClientContext::connect() (#7961)
Fix typo in EEPROM debug message (#7934)
Fix link to ESP8266 NonOS SDK (#7914)
Update a02-my-esp-crashes.rst (#7739)
Clarified implementation of the signed OTA implementation (#7736)
Specify where Additional Boards Manager URLs is (#7733)
update documentation example (#7697)
Revive a dead link (#7679)
Update OTA HTTP Server Header Information (#7633)
Pull deprecated axtls link (#7624)
Update README.md (#7623)
Update path of gdb (#7603)
Fixup weird combination of oneline/multi line comments (#7566)
Fix spelling typo under doc/faq (#7538)
doc: gcc handles duplicate literal strings (#7531)
Fix and add details to Serial doc (#7521)
Fix spelling typos in files under doc/esp8266wifi (#7520)
Typo (#7502)
Mention OTA Update class blocks flash mode changes (#7321)
Fix spelling typos in readme.rst (#7447)
Grammar fixes (#7441)

CI

Fix ESP8266SdFat architecture, Windows CI (#7866)
upgrade arduino in CI (#7716)
Use smarter cache key, cache Arduino IDE (#7791)
Remove Travis-CI configuration (#7674)
Allow test framework to use cores/esp8266/Arduino.h directly (#7377)
ci: apt update (#7596)
Properly replace toolchain in PlatformIO CI script (#7580)
PIO: Delete owner field (#7563)
Add CI test for eboot build (#7546)
Update PIO CI to be less chatty, fix CI fail (#7530)
CI: on host: force 64 bit mode like make -j2 CI implicitly does (#7513)
Add valgrind mocked test to CI (#7501)
Clean up minor warnings from LGTM.com (#7500)
Small update to ease manual release generation (#7467)
Fix typo in platform.txt causing device test fails (#7463)
Transition from TravisCI to GitHub CI (#7444)
Fix spelling typos in files under packages dir (#7439)
Remove wget dump during CI (#7438)

Build options

board manager: wemos d1 clones: new entry with menus for flash mode and flash freq (#7989)
board manager: + Agrumino lemon v4 (#7883)
Fix improper GENERIC board IDs (#7839)
boards.txt: sort by displayed name (#7670)
add sdk options to "generic esp8285 module" (#7550)

Build system

Update board-specific defines (#7875)
Add a check for all URLs in the package file (#7848)
Fix typo in 32-bit Windows package JSON (#7847)
PIO: Dynamically configure exceptions support (#7834)
platform.txt: instruct GCC to perform more aggressive optimization (#7770)
makecorever.py: Hide GIT error messages. Fixes #7744 (#7745)
Normalize platform.txt pattern numbers (#7752)
Fix platform.txt issue for Windows (#7750)
Update to pyserial 3.5, esptool 3.0 (#7737)
Added GZipped OTA support in elf2bin and PlatformIO (#7727)
Use -std=gnu17 instead of -std=c17 for GCC and test (#7588)
Compile failure fix with FS_NO_GLOBALS flag (#7685)
Update to GCC 10.2 (#7607)
Upgrade to GCC 10.1 toolchain (#6294)

Emulation on host

minor host fix found while compiling arduinoJson (#8009)
emulation on host: millis()/micros() now start at 0 (#7810)
mock: +hexdump() from debug.cpp (#7789)
emulation on host: makefile rework: only one build dir (#7738, #7740, #7741)
emulation on host makefile update, allowing to pass more options (#7552)

Release 3.0.1

2021-06-26T18:30:04Z

Breaking Changes

BREAKING: "i2s.h" removed, I2S library added (#8108)

Core

Make String reallocation warning more descriptive (#8131)
Normalize core header's include guard. (#8110)
makeword: sync header and implementation (#8097)
Use optimal bundled library names (#8088) (#8098)
Added IRAM_ATTR to _stopPWM() so that digitalWrite() would work inside ISR. Fixes #8043 (#8044) (#8048)
makecorever.py: restore ARDUINO_ESP8266_GIT_VER even without .git/ (#8138)

IDE

Update debug level list link (#8172)
Add missing menu.UploadTool name definition (#8153)

Libraries - LittleFS

Re-add mklittlefs to package.json, fixing "ESP8266 LittleFS Data Upload" (#8060)
Don't crash when including LittleFS.h w/no FS (#8173)

Libraries - SD/SDFS

SDFS: fix AvailableForWrite: do not always return 0 when space is available (#8167)

Libraries - ESP8266httpUpdate

ESP266httpUpdate: remove dead API and fix doc (#8063)

Libraries - ESP8266WiFi

Fix stopAllExcept with WiFiClientSecure (#8136)
LwipIntfDev.h - apply static DNS config (#8076)

Libraries - SoftwareSerial

Update EspSoftwareSerial to bug fix release 6.12.6

Libraries - ESP8266HTTPClient

ESP8266HTTPClient: remove old example (#8111)
Change protocol detection so uppercase or lowercase works (#8137)

Toolchain

Update toolchain to gcc 10.3 w/patches (#8104) (#8103)
Update toolchain to fix pgm_read_float_unaligned (#8091)
Remove include and lib folders removed since 3.0.0 core (#8125)
Add errors on invalid/missing function return type (#8165)
GNU source: honoring libc requirements (#8147)

PlatformIO

PIO: use CCFLAGS for -Werror (#8175) (#8092)
Documentation: Note about options on PIO (#8174)

Documentation

Fix readthedoc python dependencies (#8166)
Documentation: Arduino IDE options: fix hyperlinks and format, options (#8158) (#8154)

CI / Release / Environment

Add code-spell spelling checks to CI (#8067)
Release script: protect bash variables and add logs, major/minor/rev macro addition, BASH fix (#8074) (#8126) (#8127) (#8168)
Remove some no longer applicable artifacts from .gitignore (#8170)

Release 3.0.0 Notes

Great additions

PoC cache configuration control (aka +16KB heap!) (#7060)
Hardware WDT Stack Dump Tool (#7010)
Update to GCC 10.2 (#7607)

Breaking: Deprecation - Removal

BREAKING: httpclient: remove deprecated API (#7617)
BREAKING: Update Arduino.h, remove TIM_DIV265 (#7440)
BREAKING: Remove lwip-v1.4 specific code (#7436)
BREAKING: Remove axTLS from code and documentation (#7437)

Breaking changes summary

BREAKING: WString: return bool instead of unsigned char (#7939)
BREAKING: wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
BREAKING: Disable WiFi at boot by default (#7902, #7990, #7993)
BREAKING: base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING: Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
BREAKING: Upgrade to upstream newlib 4.0.0 release (64 bits time_t) (#7708)
BREAKING: Change servo defaults to safer defaults (#7023)
BREAKING: Add Print::availableForWrite method (#7658)
BREAKING: Change return EEPROM.end() to bool (#7630)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
BREAKING: Add Wrong Password wifi status case (#7652)
BREAKING: analogWriteRange 8-bit default (#7456)
BREAKING: HTTPClient: RequestHandler: Pass String by const reference (#6583)

Boot

eboot: .RODATA, upstream uzlib, move CRC, save 112 bytes (#7844)
Update eboot to build with C17, not C99 standard (#7837, #7838)
Fix eboot crash with exception 28. ets_printf() should take pointer argument. (#7666)
Use 32b loads to set print strings (#7545)
Comment out verify step in eboot.c (#7468)

Core

BREAKING: WString: return bool instead of unsigned char (#7939)
ESP class should be a singleton: make all member functions static. (#8006)
Updated HWDT to use IRAM_ATTR instead of ICACHE_RAM_ATTR. (#8013, #8018)
Hardware WDT Stack Dump Tool (#7010)
WString: direct operator overloads instead of StringSumHelper (#7781)
Clean up ICACHE_RAM_ATTR in VM PR (#7924)
Added ESP32 compatible methods for setting/getting sleep mode (#7901)
Enable 128K virtual memory via external SPI SRAM (#6994)
Stream::send() (#6979, #7935, #7951, #7987, #7995)
[BREAKING] base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING - Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
OOM debug: warn about String reallocation (#7908)
OOM: avoid warn when calling *alloc(0) (#7909)
String: add missing long long operator implementations (#7888)
Support to reboot into UART download mode (#7854, #7897)
String: compatibility with 64 bits scalars (#7863)
Update toolchain to support std::remainder (#7849)
allow to set pin to OUTPUT_OPEN_DRAIN in analogWriteMode (#7841)
Add 24-bit mode to I2S (#7835)
Hexdump fix&update (#7831)
improve silicon aes_unwrap (#7773)
Supersede #3856, remove undef min/max (#7824)
Add stub for analogReference() (#7809)
UART: add yield (#7799)
BREAKING - Upgrade to upstream newlib 4.0.0 release (#7708)
Update to latest uzlib upstream (#7776, #7782)
i2s: adds i2s_rxtxdrive_begin(enableRx, enableTx, driveRxClocks, driveTxClocks) (#7748)
PoC cache configuration control (#7060, #7754, #7767, #7768, #7812, #7816, #7820, #7790)
Receiving no data in Updater is an error (#7729)
PROGMEM compatibility changes to String (#7724)
schedule_recurrent_function_us should be in iram (#7713)
Re-implement PWM generator (#7715, #7712, #7022, #7231, #7800, #7996)
WString: Optimize a bit (#7553)
Fix sntp_get_real_time prototype in header (#7707)
Provide String::indexOf for a char* needle (#7706)
Fix newlib to support <+-nn> timezone names (#7699, #7702)
BREAKING: Add Print::availableForWrite method (#7658)
settimeofday_cb: distinguish from user or sntp (#7637)
Add Copyright notice to Schedule.h (#7653)
BREAKING: Add Wrong Password wifi status case (#7652)
New flash writing method with offset/memory/size alignment handling (#7514)
Add missing sntp_init/sntp_stop (#7628)
Use direct member initialization instead of ctr initialisation (#7558)
Prevent rewriting Updater_Signing.h if content unchanged (#7627)
WString: c_str() returns null pointer after move (#7611)
WString: mark move ctor as noexcept (#7610)
sntp: use one time source and fix unsynchronized sntp time stamp (#7595)
Add clear method to IPAddress (#7586)
Check also if IP is not IPADDR_NONE (#7585)
Fix gzip+signed OTA error (#7577)
new w/ OOM now aborts by defaults, or throw an exception (#7536)
getCpuFreqMHz(): fix when F_CPU is not defined (#7554)
Updater MD5 cleanup on begin (#7534)
Add synthetic IntegerDivideByZero exception (#7496)
avoid circular #include dependence for PolledTimeout (#7356)
base64 class uses String, adding harmless #include (#7517)
sys/pgmspace.h: Refactor inline asm (#7510)
Add SerialEvent() callback to loop processing (#7505)
Remove warnings when building NoAssert (#7499)
BREAKING - analogWriteRange 8-bit default (#7456)
BREAKING - Pass String by const reference [3.0] (#6583)

Libraries - softserial

Maintenance release 6.12.3: better dependency declarations for Platformio (#8030)
EspSoftwareSerial 6.12.2: Inlining push() functions that must be in IRAM for calling from ISRs (#7986)
Bug-fix release 6.12.1: a documentation error was reported by a user; dropped bit-patterns that masked the stop-bit fixed. (#7938)
EspSoftwareSerial minor release 6.12.0 completes adaptation to new Stream::send() (#7923)
Minor EspSoftwareSerial release 6.11.7, for deprecated ICACHE_RAM_ATTR in upcoming ESP8266 Arduino core 3.0.0. (#7922)
EspSoftwareSerial, bump up Arduino library manager related files 6.11.6 (#7891)
Update to EspSoftwareSerial 6.11.5 (#7889)
EspSoftwareSerial bug-fix release 6.11.4 (#7862)
Update to EspSoftwareSerial 6.11.3: prepares for ESP8266 Arduino core PR 6979. (#7840)
EspSoftwareSerial 6.11.2: Delegate<> assign operators added. (#7815)
Minor EspSoftwareSerial release 6.11.1 (#7804)
Minor EspSoftwareSerial release 6.11.0 (#7802)
EspSoftwareSerial bug fix release 6.10.1: preciseDelay() could delay() for extremely long time, if period duration was exceeded on entry. (#7771)
EspSoftwareSerial 6.10.0: override keyword for recent Print::availableForWrite() addition (#7710)
EspSoftwareSerial 6.9.0: data/strings in flash alignment handling fix. Yielding during write() improvement. (#7604)

Libraries - FS

Update mklittlefs executable (#7906)
Track creation time of LittleFS FS (#7873)
Invalid read return value fix (#7817)
Update to SdFat 2.0.2, speed SD access (#7779)
Rationalize File timestamp callback (#7785)
Update to LittleFS v2.3 (#7787)

Libraries - Network

added ArduinoWiFiServer with send-to-all-clients functionality (#7612)
internal: rename ClientContext::wait_until_sent() to wait_until_acked() (#7896)
Added ESP32 compatible methods for setting/getting hostname (#7900)
AP & dhcp-server: fix uninitialized variables (#7905)
Netdump: Avoid UB and abort on nullptr buffer (#7822)
lwip2: use pvPortXalloc/vPortFree and "-free -fipa-pta" (#7793)
more lwIP physical interfaces (#6680)
Netump (#7527, #7659)
replace old Ethernet Arduino-library with v2, submoduled (#6812)

Library - WiFi

WiFi: clean up AP SSID setter & getter, support 32 chars (#7941)
[BREAKING] wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
[BREAKING] Disable WiFi at boot by default (#7902)
Added broadcastIP method to WiFiSTA class (#7899)
WIFI_RESUME improve speed and example (#7877)
WiFiServer.cpp: Fix warning (#7755)
update documentation example (#7697)
Refactor WiFi scan example (#7655)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
Reduce codesize of setOutputPower (#7572)

Library - TLS/SSL

Fix a warning (#8014)
Adding comment to ignore SSL certificate in sample code. (#7994)
Update Root Certificate in example (#7932)
Adds the method setSSLVersions() also to WiFiClientSecure in order to use that new feature. (#7925)
Add setSSLVersion call to SSL object (#7920)
Allow users to inherit and override CertStore (#7827)
Reduce BearSSL code size by not -O2 FSMs (#7807)
WiFiServerSecure: Cache SSL sessions (#7774)
WiFiClientSecure: use context (#7680)
Update to latest BearSSL as of Nov 2020 (#7732)
Add Stream loaders for BearSSL (#7675)
Catch and display SSL errors for fatal alerts (#7681)
Fix error when debug enabled but no port chosen (#7648)
Remove stray axtls refs, deprecated compat funcs (#7626)
Fix error message typo (#7581)
Update DigestAuthorization.ino (Simple example update) (#7579)
Update certs-from-mozilla.py (#7573, #7578)
Use root cert, not fingerprint for api.github.com (#7490)
Update FP for tls.mbed.org (#7479)
Change BSSL_CertStore test URL (#7370)
Update to BearSSL version lost in GCC10 update (#7453)

Library - Webserver

ESP8266WebServer: Add variadic template version of collectHeaders() (#7296)
Fix header FSM in webserver, fix Windows uploads (#7805)
ETag support for WebServer (#7709)
Rewrite multipart boundary detection (#7728)
Fixed bug in parsing POST file uploads (#7543)
Fix long password validation in WebServer (#7676)
FIX MIME-Type for txt-suffix (#7608)
FIX StaticRequestHandler crashes when cache_header is null and DEBUG_ESP_CORE is enabled (#7609)
Avoid #includes with a surrounding namespace (#7560)
webserver hook: allow to handle external http protocol (#7459, #7492, #7515)
Made ESP8266WebServer::client() return a reference (fixes #7075) (#7080)
WebServer: Allow client to send many requests on the same connection (#7414)
webserver: do not count "plain" in argument list (#6768)
webserver: string optimization (#7446)

Libraries - others

Resolve "PWM-locked" / "phase-locked" waveform merge leftover in Servo lib (#7978)
Add I2S class support (#7874)
At MDNS.end() also release services (#7859)
AVRISP: Prevent nullptr dereference on OOM (#7823)
HTTPClient: fix error handling (#7811)
LEAmDNS: one instance for all interfaces (#7786 - #7540 #7615 #7636 #7640)
Add the missing 'rename' method wrapper in SD library. (#7766)
Update to ESP8266HTTPClient.cpp for no Content-Length (#7691)
BREAKING: Change servo defaults to safer defaults (#7023)
Hook up custom timestamp proc for SD/SDFS (#7686)
BREAKING: Change return EEPROM.end() to bool (#7630)
httpclient: remove deprecated API (#7617)
Avoid float-double-conversion (#7559)
Use direct member initialization instead of ctr initialisation (#7556)
Basic authentication with ESP8266httpUpdate (#7190)

Documentation

doc: analogRead must not be called to frequently with WiFi is on (#7981)
comments in ClientContext::connect() (#7961)
Fix typo in EEPROM debug message (#7934)
Fix link to ESP8266 NonOS SDK (#7914)
Update a02-my-esp-crashes.rst (#7739)
Clarified implementation of the signed OTA implementation (#7736)
Specify where Additional Boards Manager URLs is (#7733)
update documentation example (#7697)
Revive a dead link (#7679)
Update OTA HTTP Server Header Information (#7633)
Pull deprecated axtls link (#7624)
Update README.md (#7623)
Update path of gdb (#7603)
Fixup weird combination of oneline/multi line comments (#7566)
Fix spelling typo under doc/faq (#7538)
doc: gcc handles duplicate literal strings (#7531)
Fix and add details to Serial doc (#7521)
Fix spelling typos in files under doc/esp8266wifi (#7520)
Typo (#7502)
Mention OTA Update class blocks flash mode changes (#7321)
Fix spelling typos in readme.rst (#7447)
Grammar fixes (#7441)

CI

Fix ESP8266SdFat architecture, Windows CI (#7866)
upgrade arduino in CI (#7716)
Use smarter cache key, cache Arduino IDE (#7791)
Remove Travis-CI configuration (#7674)
Allow test framework to use cores/esp8266/Arduino.h directly (#7377)
ci: apt update (#7596)
Properly replace toolchain in PlatformIO CI script (#7580)
PIO: Delete owner field (#7563)
Add CI test for eboot build (#7546)
Update PIO CI to be less chatty, fix CI fail (#7530)
CI: on host: force 64 bit mode like make -j2 CI implicitly does (#7513)
Add valgrind mocked test to CI (#7501)
Clean up minor warnings from LGTM.com (#7500)
Small update to ease manual release generation (#7467)
Fix typo in platform.txt causing device test fails (#7463)
Transition from TravisCI to GitHub CI (#7444)
Fix spelling typos in files under packages dir (#7439)
Remove wget dump during CI (#7438)

Build options

board manager: wemos d1 clones: new entry with menus for flash mode and flash freq (#7989)
board manager: + Agrumino lemon v4 (#7883)
Fix improper GENERIC board IDs (#7839)
boards.txt: sort by displayed name (#7670)
add sdk options to "generic esp8285 module" (#7550)

Build system

Update board-specific defines (#7875)
Add a check for all URLs in the package file (#7848)
Fix typo in 32-bit Windows package JSON (#7847)
PIO: Dynamically configure exceptions support (#7834)
platform.txt: instruct GCC to perform more aggressive optimization (#7770)
makecorever.py: Hide GIT error messages. Fixes #7744 (#7745)
Normalize platform.txt pattern numbers (#7752)
Fix platform.txt issue for Windows (#7750)
Update to pyserial 3.5, esptool 3.0 (#7737)
Added GZipped OTA support in elf2bin and PlatformIO (#7727)
Use -std=gnu17 instead of -std=c17 for GCC and test (#7588)
Compile failure fix with FS_NO_GLOBALS flag (#7685)
Update to GCC 10.2 (#7607)
Upgrade to GCC 10.1 toolchain (#6294)

Emulation on host

minor host fix found while compiling arduinoJson (#8009)
emulation on host: millis()/micros() now start at 0 (#7810)
mock: +hexdump() from debug.cpp (#7789)
emulation on host: makefile rework: only one build dir (#7738, #7740, #7741)
emulation on host makefile update, allowing to pass more options (#7552)

Release 3.0.0

2021-06-24T21:38:44Z

Great additions

PoC cache configuration control (aka +16KB heap!) (#7060)
Hardware WDT Stack Dump Tool (#7010)
Update to GCC 10.2 (#7607)

Breaking: Deprecation - Removal

BREAKING: httpclient: remove deprecated API (#7617)
BREAKING: Update Arduino.h, remove TIM_DIV265 (#7440)
BREAKING: Remove lwip-v1.4 specific code (#7436)
BREAKING: Remove axTLS from code and documentation (#7437)

Breaking changes summary

BREAKING: WString: return bool instead of unsigned char (#7939)
BREAKING: wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
BREAKING: Disable WiFi at boot by default (#7902, #7990, #7993)
BREAKING: base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING: Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
BREAKING: Upgrade to upstream newlib 4.0.0 release (64 bits time_t) (#7708)
BREAKING: Change servo defaults to safer defaults (#7023)
BREAKING: Add Print::availableForWrite method (#7658)
BREAKING: Change return EEPROM.end() to bool (#7630)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
BREAKING: Add Wrong Password wifi status case (#7652)
BREAKING: analogWriteRange 8-bit default (#7456)
BREAKING: HTTPClient: RequestHandler: Pass String by const reference (#6583)

Boot

eboot: .RODATA, upstream uzlib, move CRC, save 112 bytes (#7844)
Update eboot to build with C17, not C99 standard (#7837, #7838)
Fix eboot crash with exception 28. ets_printf() should take pointer argument. (#7666)
Use 32b loads to set print strings (#7545)
Comment out verify step in eboot.c (#7468)

Core

BREAKING: WString: return bool instead of unsigned char (#7939)
ESP class should be a singleton: make all member functions static. (#8006)
Updated HWDT to use IRAM_ATTR instead of ICACHE_RAM_ATTR. (#8013, #8018)
Hardware WDT Stack Dump Tool (#7010)
WString: direct operator overloads instead of StringSumHelper (#7781)
Clean up ICACHE_RAM_ATTR in VM PR (#7924)
Added ESP32 compatible methods for setting/getting sleep mode (#7901)
Enable 128K virtual memory via external SPI SRAM (#6994)
Stream::send() (#6979, #7935, #7951, #7987, #7995)
[BREAKING] base64::encode() compat with esp32: no newlines by default (#7910)
BREAKING - Use IRAM_ATTR in place of ICACHE_RAM_ATTR (#7921)
OOM debug: warn about String reallocation (#7908)
OOM: avoid warn when calling *alloc(0) (#7909)
String: add missing long long operator implementations (#7888)
Support to reboot into UART download mode (#7854, #7897)
String: compatibility with 64 bits scalars (#7863)
Update toolchain to support std::remainder (#7849)
allow to set pin to OUTPUT_OPEN_DRAIN in analogWriteMode (#7841)
Add 24-bit mode to I2S (#7835)
Hexdump fix&update (#7831)
improve silicon aes_unwrap (#7773)
Supersede #3856, remove undef min/max (#7824)
Add stub for analogReference() (#7809)
UART: add yield (#7799)
BREAKING - Upgrade to upstream newlib 4.0.0 release (#7708)
Update to latest uzlib upstream (#7776, #7782)
i2s: adds i2s_rxtxdrive_begin(enableRx, enableTx, driveRxClocks, driveTxClocks) (#7748)
PoC cache configuration control (#7060, #7754, #7767, #7768, #7812, #7816, #7820, #7790)
Receiving no data in Updater is an error (#7729)
PROGMEM compatibility changes to String (#7724)
schedule_recurrent_function_us should be in iram (#7713)
Re-implement PWM generator (#7715, #7712, #7022, #7231, #7800, #7996)
WString: Optimize a bit (#7553)
Fix sntp_get_real_time prototype in header (#7707)
Provide String::indexOf for a char* needle (#7706)
Fix newlib to support <+-nn> timezone names (#7699, #7702)
BREAKING: Add Print::availableForWrite method (#7658)
settimeofday_cb: distinguish from user or sntp (#7637)
Add Copyright notice to Schedule.h (#7653)
BREAKING: Add Wrong Password wifi status case (#7652)
New flash writing method with offset/memory/size alignment handling (#7514)
Add missing sntp_init/sntp_stop (#7628)
Use direct member initialization instead of ctr initialisation (#7558)
Prevent rewriting Updater_Signing.h if content unchanged (#7627)
WString: c_str() returns null pointer after move (#7611)
WString: mark move ctor as noexcept (#7610)
sntp: use one time source and fix unsynchronized sntp time stamp (#7595)
Add clear method to IPAddress (#7586)
Check also if IP is not IPADDR_NONE (#7585)
Fix gzip+signed OTA error (#7577)
new w/ OOM now aborts by defaults, or throw an exception (#7536)
getCpuFreqMHz(): fix when F_CPU is not defined (#7554)
Updater MD5 cleanup on begin (#7534)
Add synthetic IntegerDivideByZero exception (#7496)
avoid circular #include dependence for PolledTimeout (#7356)
base64 class uses String, adding harmless #include (#7517)
sys/pgmspace.h: Refactor inline asm (#7510)
Add SerialEvent() callback to loop processing (#7505)
Remove warnings when building NoAssert (#7499)
BREAKING - analogWriteRange 8-bit default (#7456)
BREAKING - Pass String by const reference [3.0] (#6583)

Libraries - softserial

Maintenance release 6.12.3: better dependency declarations for Platformio (#8030)
EspSoftwareSerial 6.12.2: Inlining push() functions that must be in IRAM for calling from ISRs (#7986)
Bug-fix release 6.12.1: a documentation error was reported by a user; dropped bit-patterns that masked the stop-bit fixed. (#7938)
EspSoftwareSerial minor release 6.12.0 completes adaptation to new Stream::send() (#7923)
Minor EspSoftwareSerial release 6.11.7, for deprecated ICACHE_RAM_ATTR in upcoming ESP8266 Arduino core 3.0.0. (#7922)
EspSoftwareSerial, bump up Arduino library manager related files 6.11.6 (#7891)
Update to EspSoftwareSerial 6.11.5 (#7889)
EspSoftwareSerial bug-fix release 6.11.4 (#7862)
Update to EspSoftwareSerial 6.11.3: prepares for ESP8266 Arduino core PR 6979. (#7840)
EspSoftwareSerial 6.11.2: Delegate<> assign operators added. (#7815)
Minor EspSoftwareSerial release 6.11.1 (#7804)
Minor EspSoftwareSerial release 6.11.0 (#7802)
EspSoftwareSerial bug fix release 6.10.1: preciseDelay() could delay() for extremely long time, if period duration was exceeded on entry. (#7771)
EspSoftwareSerial 6.10.0: override keyword for recent Print::availableForWrite() addition (#7710)
EspSoftwareSerial 6.9.0: data/strings in flash alignment handling fix. Yielding during write() improvement. (#7604)

Libraries - FS

Update mklittlefs executable (#7906)
Track creation time of LittleFS FS (#7873)
Invalid read return value fix (#7817)
Update to SdFat 2.0.2, speed SD access (#7779)
Rationalize File timestamp callback (#7785)
Update to LittleFS v2.3 (#7787)

Libraries - Network

added ArduinoWiFiServer with send-to-all-clients functionality (#7612)
internal: rename ClientContext::wait_until_sent() to wait_until_acked() (#7896)
Added ESP32 compatible methods for setting/getting hostname (#7900)
AP & dhcp-server: fix uninitialized variables (#7905)
Netdump: Avoid UB and abort on nullptr buffer (#7822)
lwip2: use pvPortXalloc/vPortFree and "-free -fipa-pta" (#7793)
more lwIP physical interfaces (#6680)
Netump (#7527, #7659)
replace old Ethernet Arduino-library with v2, submoduled (#6812)

Library - WiFi

WiFi: clean up AP SSID setter & getter, support 32 chars (#7941)
[BREAKING] wifi: remove pseudo-modes for shutdown, expose ::[resumeFrom]shutdown() (#7956)
[BREAKING] Disable WiFi at boot by default (#7902)
Added broadcastIP method to WiFiSTA class (#7899)
WIFI_RESUME improve speed and example (#7877)
WiFiServer.cpp: Fix warning (#7755)
update documentation example (#7697)
Refactor WiFi scan example (#7655)
BREAKING: Change return type of channel() (#7656)
BREAKING: Change return type of RSSI() (#7657)
Reduce codesize of setOutputPower (#7572)

Library - TLS/SSL

Fix a warning (#8014)
Adding comment to ignore SSL certificate in sample code. (#7994)
Update Root Certificate in example (#7932)
Adds the method setSSLVersions() also to WiFiClientSecure in order to use that new feature. (#7925)
Add setSSLVersion call to SSL object (#7920)
Allow users to inherit and override CertStore (#7827)
Reduce BearSSL code size by not -O2 FSMs (#7807)
WiFiServerSecure: Cache SSL sessions (#7774)
WiFiClientSecure: use context (#7680)
Update to latest BearSSL as of Nov 2020 (#7732)
Add Stream loaders for BearSSL (#7675)
Catch and display SSL errors for fatal alerts (#7681)
Fix error when debug enabled but no port chosen (#7648)
Remove stray axtls refs, deprecated compat funcs (#7626)
Fix error message typo (#7581)
Update DigestAuthorization.ino (Simple example update) (#7579)
Update certs-from-mozilla.py (#7573, #7578)
Use root cert, not fingerprint for api.github.com (#7490)
Update FP for tls.mbed.org (#7479)
Change BSSL_CertStore test URL (#7370)
Update to BearSSL version lost in GCC10 update (#7453)

Library - Webserver

ESP8266WebServer: Add variadic template version of collectHeaders() (#7296)
Fix header FSM in webserver, fix Windows uploads (#7805)
ETag support for WebServer (#7709)
Rewrite multipart boundary detection (#7728)
Fixed bug in parsing POST file uploads (#7543)
Fix long password validation in WebServer (#7676)
FIX MIME-Type for txt-suffix (#7608)
FIX StaticRequestHandler crashes when cache_header is null and DEBUG_ESP_CORE is enabled (#7609)
Avoid #includes with a surrounding namespace (#7560)
webserver hook: allow to handle external http protocol (#7459, #7492, #7515)
Made ESP8266WebServer::client() return a reference (fixes #7075) (#7080)
WebServer: Allow client to send many requests on the same connection (#7414)
webserver: do not count "plain" in argument list (#6768)
webserver: string optimization (#7446)

Libraries - others

Resolve "PWM-locked" / "phase-locked" waveform merge leftover in Servo lib (#7978)
Add I2S class support (#7874)
At MDNS.end() also release services (#7859)
AVRISP: Prevent nullptr dereference on OOM (#7823)
HTTPClient: fix error handling (#7811)
LEAmDNS: one instance for all interfaces (#7786 - #7540 #7615 #7636 #7640)
Add the missing 'rename' method wrapper in SD library. (#7766)
Update to ESP8266HTTPClient.cpp for no Content-Length (#7691)
BREAKING: Change servo defaults to safer defaults (#7023)
Hook up custom timestamp proc for SD/SDFS (#7686)
BREAKING: Change return EEPROM.end() to bool (#7630)
httpclient: remove deprecated API (#7617)
Avoid float-double-conversion (#7559)
Use direct member initialization instead of ctr initialisation (#7556)
Basic authentication with ESP8266httpUpdate (#7190)

Documentation

doc: analogRead must not be called to frequently with WiFi is on (#7981)
comments in ClientContext::connect() (#7961)
Fix typo in EEPROM debug message (#7934)
Fix link to ESP8266 NonOS SDK (#7914)
Update a02-my-esp-crashes.rst (#7739)
Clarified implementation of the signed OTA implementation (#7736)
Specify where Additional Boards Manager URLs is (#7733)
update documentation example (#7697)
Revive a dead link (#7679)
Update OTA HTTP Server Header Information (#7633)
Pull deprecated axtls link (#7624)
Update README.md (#7623)
Update path of gdb (#7603)
Fixup weird combination of oneline/multi line comments (#7566)
Fix spelling typo under doc/faq (#7538)
doc: gcc handles duplicate literal strings (#7531)
Fix and add details to Serial doc (#7521)
Fix spelling typos in files under doc/esp8266wifi (#7520)
Typo (#7502)
Mention OTA Update class blocks flash mode changes (#7321)
Fix spelling typos in readme.rst (#7447)
Grammar fixes (#7441)

CI

Fix ESP8266SdFat architecture, Windows CI (#7866)
upgrade arduino in CI (#7716)
Use smarter cache key, cache Arduino IDE (#7791)
Remove Travis-CI configuration (#7674)
Allow test framework to use cores/esp8266/Arduino.h directly (#7377)
ci: apt update (#7596)
Properly replace toolchain in PlatformIO CI script (#7580)
PIO: Delete owner field (#7563)
Add CI test for eboot build (#7546)
Update PIO CI to be less chatty, fix CI fail (#7530)
CI: on host: force 64 bit mode like make -j2 CI implicitly does (#7513)
Add valgrind mocked test to CI (#7501)
Clean up minor warnings from LGTM.com (#7500)
Small update to ease manual release generation (#7467)
Fix typo in platform.txt causing device test fails (#7463)
Transition from TravisCI to GitHub CI (#7444)
Fix spelling typos in files under packages dir (#7439)
Remove wget dump during CI (#7438)

Build options

board manager: wemos d1 clones: new entry with menus for flash mode and flash freq (#7989)
board manager: + Agrumino lemon v4 (#7883)
Fix improper GENERIC board IDs (#7839)
boards.txt: sort by displayed name (#7670)
add sdk options to "generic esp8285 module" (#7550)

Build system

Update board-specific defines (#7875)
Add a check for all URLs in the package file (#7848)
Fix typo in 32-bit Windows package JSON (#7847)
PIO: Dynamically configure exceptions support (#7834)
platform.txt: instruct GCC to perform more aggressive optimization (#7770)
makecorever.py: Hide GIT error messages. Fixes #7744 (#7745)
Normalize platform.txt pattern numbers (#7752)
Fix platform.txt issue for Windows (#7750)
Update to pyserial 3.5, esptool 3.0 (#7737)
Added GZipped OTA support in elf2bin and PlatformIO (#7727)
Use -std=gnu17 instead of -std=c17 for GCC and test (#7588)
Compile failure fix with FS_NO_GLOBALS flag (#7685)
Update to GCC 10.2 (#7607)
Upgrade to GCC 10.1 toolchain (#6294)

Emulation on host

minor host fix found while compiling arduinoJson (#8009)
emulation on host: millis()/micros() now start at 0 (#7810)
mock: +hexdump() from debug.cpp (#7789)
emulation on host: makefile rework: only one build dir (#7738, #7740, #7741)
emulation on host makefile update, allowing to pass more options (#7552)

Release 2.7.4

2020-08-02T18:49:10Z

Hotfixes:

Backport #7478: Fix uninitted class variables from #7464
Backport #7491: Fixed PUYA flash write buffer alignment

Release 2.7.3

2020-07-27T18:58:53Z

Hotfix against "OTA of large files results in device hangs" (#7458)

Also includes backports from 3.0.0-dev:

boards: 4dsystems (gen4iod) updates (#7433)
Free space of overwritten files in LittleFS (#7434)
Keep client certs when server authentication set (#7464)
CVE-2020-12638 workaround for WPA downgrade attack (#7486)
Initialize _ledPin (#7487)
Correct stack string buffer length (#7488)

Release 2.7.2

2020-07-07T09:21:24Z

Changes since 2.7.1 (to 2.7.2)

Boot

Xmc flash 2 (#7317) (fixes #6725 #7277)

Core

Add namespace to FS references in CertStore (#7413)
For UMM_CRITICAL_METRICS fixed time_stats initializer. (#7390)
Add a "-- CUT HERE --" marker to exception output (#7369)
CallbackList API: improve to facilitate executer to know the number of active callbacks (#7361)
umm_malloc manual merge with upstream (#7337)
Fix sign in configTime(tz,dst,) (#7320)
Bring SPIFFS up to latest version (#7276)
Allow non-aligned PSTR() (#7275)
Crypto: Add required BearSSL include in header (#7310)

Build system

Use a prebuild, portable Python3 for OSX (#7348)
Recognize MSYS(MINGW) as Windows for toolchain get (#7358)
elf2bin.py objcopy cleanup (#7351)

Libraries

WiFiMulti: Ability to set connect timeout in WifiMulti->run (#7420)
BearSSL: Add namespace to FS references in CertStore (#7413)
httpclient: fix error meaning (#7401)
EspSoftwareSerial 6.8.5: fixes parity for TX with odd word size modes (#7399, #7367, #7354)
Add ESP8266WebServerTemplate::enableCORS(bool _ec) (#7388)
SPI: abs -> std::abs and cast fixes (#7362)
Fix oversight for ap gw (#7366)
ESP8266WiFiAP: fix IP address in some cases (#7363)
LittleFS: Return FALSE on seek past EOF (#7324)
Webserver: Flash size reduction for mime-type (#7312)
BearSSL: Allocate stack for SigningVerifier (#7291)
ESP8266HTTPClient fixes (#6476)

Examples

Update GitHub cert fingerprint in example (#7397)
Multi-client Server Sent Event (aka EventSource) demo (#7012)
Webserver: Graph example (#7299)

Documentation

Add some pending methods to generic-class docs (#7427)
doc fixes for LittleFS (#7385)
Fix typo in readme.rst (#7379)
Add documentation on recovering from deep sleep with WAKE_RF_DISABLED (#7338)
Add FTP client/server lib link (#7336)
Document ESP.getMaxFreeBlockSize() != max malloc size (#7328)

Boards

modwifi: I2C pin assignment fix (#7416)

Building on host

emulation on host: option for FS persistence location (#7424)
emulation on host: FS: minor reset fix (#7417)
emulation on host: missing mock functions, improve host interface handling (#7404)
emulation on host: lwIP always receive multicast packets, enable and fix multicast udp server (#7386)
emulation on host: fix binding from a particular interface (#7372)
emulation on host: various fixes (#7355)

Changes since 2.7.0 (to 2.7.1)

Hotfixes

Revert XMC changes in eboot that were causing OTA failure (#7277)
Revert MDNS listen the current iface causing MDNS death (#7266)

Core (FS)

Deprecate SPIFFS, move examples to LittleFS (#7263)

Documentation

Document USTX in USS/UxS not working as expected (#7265)

Changes since 2.6.3 (to 2.7.0)

Breaking Changes

None

Great additions

Allow GZIP compressed flash updates (#6820)
Add CryptoInterface library (#6961, #7252)

Core

Added missing "if (umm_heap == NULL) {..." to umm_free_heap_size_lw (#6929)
Code size optimisations for ESP.getFullVersion() (#6936)
I2C: allow clocks below 100KHz (#6934)
Reduce mem footprint of ESP.getResetInfo() (#7030)
Code size optimisation of ESP.getResetReason() (#7029)
Low-Power demo (#6989)
Fix WMath's map() implementation for inverse/round-trip mapping (#7027)
Fix optimistic_yield to not yield on each call after x µs (#6804)
Updated stack offsets for postmortem stack dump (#7066)
Corrected stack start and end in stack_thunk_dump_stack() (#7085)
configTime(tzsec,dstsec,): fix UTC/local management (#6993)
dtostrf: round fix (#7068, #7093)
simple TZ api: bypass sprintf/sscanf (= do not use 7KB flash) (#7109)
Pull GPIO initialization into its own 'weak' function. (#7044)
Attribute __real_system_restart_local() as (noreturn) (#7167)
Move floating point from libgcc out of IRAM (#7180, #7188)
Tone: extend to 20KHz (#7179)
Add CryptoInterface library (#6961, #7252)
Fix for MD5 leak bug (#7197, #7208)
Use F_CPU if (?) CPU frequency switch is compile-time only (#6833)
expose setTZ() (#7234)
XMC flash support - WIP (#6725)
Allow waveforms to be specified in clock cycles (#7211)
Waveforms: cherry pick nice changes from ongoing #7122 (#7218)
Allow stopWaveform to stop timed-out waveforms (#7236)
Hold transmitter in reset during rate change (#7248)
Fix minor GCC10 static analyzer warnings (#7255)

Core (FS)

Skip . and .. on LittleFS::dir::rewind() (#6959)
Only update LittleFS timestamp when opened write (#6956)
Update LittleFS to latest upstream head (#6986)
Add SDFS::Dir::fileTime callback (#6985)
Add LittleFS support to ESP8266WebServer.serveStatic() (#6987)
Fix boolean/logical & mixup in LittleFS open (#6996)
Add fileCreation/getCreation create-time accessors (#7000)
Improve LittleFS support (#7071)
Update to LittleFS v2.2.0 (#7240)

Network (Core, Library/ESP8266WiFi)

lwip2: no more git sub-sub-module deps, faster checksum, backlog limitation and other fixes (#6887)
Fix/enable UDP packet reassembly (#7036, #7132)
SNTP: backport espressif sntp api for lwip2 (#7097)
TCP: fixes backlog limit handling, and allows ephemeral TCP connections (#7096)
lwip2 update: stop dhcp when interface goes down (#7114)
Fix UDP send to IPv6 link local addresses (#6541)
Fix TCP send to IPv6 link local addresses (#7207)
Updating _port to really used port and made _port accessible (#7003)
Make DNS resolution order selectable during runtime or compile time (#6865)
WiFi: ARP gratuitous API for wifi station mode (#6889, #7203)
fix null pointer call from WiFiClient::localIP() to IPAddress (#7221)

Library - ESP8266WiFi (SSL/TLS)

Update BearSSL, increase SSL stack (#6980)
Remove memory leak on multiple calls to initCertStore (#7021)
Update to latest BearSSL (#7098)
Abort if BearSSL stack allocation fails (#7152)

Flashing - OTA - Updater

Allow GZIP compressed flash updates (#6820)
Add documentation for compressed OTA, fix bug (#6924)
Add a CRC32 over progmem and ESP.checkFlashCRC (#6566)
Fix Updater potential overflow, add host tests (#6954)
allow ".bin.gz" filter in HTTP updater file selector (#7026)
Updater: prevent closing webserver (option) (#6969)
Use 2nd stack for update signature verification (#7149)
Fix espota completion success/fail check (#7204)

Library - SoftwareSerial

EspSoftwareSerial release 6.8.1 (#6922, #6932, #6943, #7034, #7133, #7139, #7205)

Library - ESP8266WebServer

PROGMEM footprint cleanup for responseCodeToString (#6950)
Fix search order for index.htm(l)(.gz) files (#7069)
Add Uri with support for regexUri and globUri (#6696)
Add flash helper constructor to Uri (#7105)
Expose webserver's chunk api (#7134)
Make getContentType available for 3rd party usage (#7254)

Library - ESP8266HTTPClient

Reduce temporary string creation in HTTPClient::sendHeader (#6937)
Move a couple larger strings from rodata to flash (#6976)
clear _canReuse in setUrl if its not a local redirect (#7039)
Fixes large payload issues for sendRequest (#7051)
Better follow redirection for HTTPClient (#7157)

Library - mDNS

Update LEAmDNS.cpp (fix issue #6982) (#7025)
use STA as default interface in mDNS (#7042)
Additions to UdpContext needed for LEAmDNS2 (#7048)
mDNS: protect MDNSResponder::queryService against misuse (#7216)
Add isRunning getter to check is ::begin already called (#7219)
Changing listen to listen the current iface only instead of 0 (#7217)

Library - Servo

Define MAX_SERVOS to 12, like original Servo.h (#6999)

Libraries

Various String handling cleanups (Libraries&Core) (#6945)
Set a value for SSDP notify interval (#7110)

Documentation

Installation guide for PlatformIO (#7142)
Fix RST links for PlatformIO (#7143)
(STA) Fixed misplacement of back quotes (#7247)

CI

Fix Windows CI build (#6927)
fix CI: switch to python3 for pio (#7035)
update to new prebuilt win sed version (#7062)
Switch espressif8266 platform to development branch in PlatformIO build (#7170)
fix style checking: (#7222)

Examples

CaptivePortal: improve HTML quality (#7227)
ESP8266WebServer: Revamp of the FSBrowser and SDWebServer examples (#7182)

Boards

Made changes to include "ESP8266_" with ITEAD board names, {build.board}, (#7024)
Add support for eduino wifi (#6554)
Add 2MB obtion to 8285 generic board (#7163)
esp8285: properly initialize free gpio as input (#7165)

Build System

Add back mklittlefs for linux32 target (#7011)
Use a python3 script to call python3 (#6960)
boards.txt.py: Use correct file name when writing (#7018)
PIO: Allow using custom linker scripts (#7078)
package builder: updates for alpha releases (#7088)
Switch espressif8266 platform to development branch in PlatformIO build (#7170)
Use F_CPU if (?) CPU frequency switch is compile-time only (#6833)

Device tests

device tests: some of them can be run on host (#6912)
Add test for FS::open("w+") (#7241)

Boot

eboot: fix linking and padding (#7047)
Allow GZIP compressed flash updates (#6820)

Building on host

host build: optimistic_yield() wrongly delays() instead of avoiding excessive yields (#6802)

Release 2.7.1

2020-05-07T20:50:02Z

Changes since 2.7.0 (to 2.7.1)

Hotfixes

Revert XMC changes in eboot that were causing OTA failure (#7277)
Revert MDNS listen the current iface causing MDNS death (#7266)

Core (FS)

Deprecate SPIFFS, move examples to LittleFS (#7263)

Documentation

Document USTX in USS/UxS not working as expected (#7265)

Changes since 2.6.3 (to 2.7.0)

Breaking Changes

None

Great additions

Allow GZIP compressed flash updates (#6820)
Add CryptoInterface library (#6961, #7252)

Core

Added missing "if (umm_heap == NULL) {..." to umm_free_heap_size_lw (#6929)
Code size optimisations for ESP.getFullVersion() (#6936)
I2C: allow clocks below 100KHz (#6934)
Reduce mem footprint of ESP.getResetInfo() (#7030)
Code size optimisation of ESP.getResetReason() (#7029)
Low-Power demo (#6989)
Fix WMath's map() implementation for inverse/round-trip mapping (#7027)
Fix optimistic_yield to not yield on each call after x µs (#6804)
Updated stack offsets for postmortem stack dump (#7066)
Corrected stack start and end in stack_thunk_dump_stack() (#7085)
configTime(tzsec,dstsec,): fix UTC/local management (#6993)
dtostrf: round fix (#7068, #7093)
simple TZ api: bypass sprintf/sscanf (= do not use 7KB flash) (#7109)
Pull GPIO initialization into its own 'weak' function. (#7044)
Attribute __real_system_restart_local() as (noreturn) (#7167)
Move floating point from libgcc out of IRAM (#7180, #7188)
Tone: extend to 20KHz (#7179)
Add CryptoInterface library (#6961, #7252)
Fix for MD5 leak bug (#7197, #7208)
Use F_CPU if (?) CPU frequency switch is compile-time only (#6833)
expose setTZ() (#7234)
XMC flash support - WIP (#6725)
Allow waveforms to be specified in clock cycles (#7211)
Waveforms: cherry pick nice changes from ongoing #7122 (#7218)
Allow stopWaveform to stop timed-out waveforms (#7236)
Hold transmitter in reset during rate change (#7248)
Fix minor GCC10 static analyzer warnings (#7255)

Core (FS)

Skip . and .. on LittleFS::dir::rewind() (#6959)
Only update LittleFS timestamp when opened write (#6956)
Update LittleFS to latest upstream head (#6986)
Add SDFS::Dir::fileTime callback (#6985)
Add LittleFS support to ESP8266WebServer.serveStatic() (#6987)
Fix boolean/logical & mixup in LittleFS open (#6996)
Add fileCreation/getCreation create-time accessors (#7000)
Improve LittleFS support (#7071)
Update to LittleFS v2.2.0 (#7240)

Network (Core, Library/ESP8266WiFi)

lwip2: no more git sub-sub-module deps, faster checksum, backlog limitation and other fixes (#6887)
Fix/enable UDP packet reassembly (#7036, #7132)
SNTP: backport espressif sntp api for lwip2 (#7097)
TCP: fixes backlog limit handling, and allows ephemeral TCP connections (#7096)
lwip2 update: stop dhcp when interface goes down (#7114)
Fix UDP send to IPv6 link local addresses (#6541)
Fix TCP send to IPv6 link local addresses (#7207)
Updating _port to really used port and made _port accessible (#7003)
Make DNS resolution order selectable during runtime or compile time (#6865)
WiFi: ARP gratuitous API for wifi station mode (#6889, #7203)
fix null pointer call from WiFiClient::localIP() to IPAddress (#7221)

Library - ESP8266WiFi (SSL/TLS)

Update BearSSL, increase SSL stack (#6980)
Remove memory leak on multiple calls to initCertStore (#7021)
Update to latest BearSSL (#7098)
Abort if BearSSL stack allocation fails (#7152)

Flashing - OTA - Updater

Allow GZIP compressed flash updates (#6820)
Add documentation for compressed OTA, fix bug (#6924)
Add a CRC32 over progmem and ESP.checkFlashCRC (#6566)
Fix Updater potential overflow, add host tests (#6954)
allow ".bin.gz" filter in HTTP updater file selector (#7026)
Updater: prevent closing webserver (option) (#6969)
Use 2nd stack for update signature verification (#7149)
Fix espota completion success/fail check (#7204)

Library - SoftwareSerial

EspSoftwareSerial release 6.8.1 (#6922, #6932, #6943, #7034, #7133, #7139, #7205)

Library - ESP8266WebServer

PROGMEM footprint cleanup for responseCodeToString (#6950)
Fix search order for index.htm(l)(.gz) files (#7069)
Add Uri with support for regexUri and globUri (#6696)
Add flash helper constructor to Uri (#7105)
Expose webserver's chunk api (#7134)
Make getContentType available for 3rd party usage (#7254)

Library - ESP8266HTTPClient

Reduce temporary string creation in HTTPClient::sendHeader (#6937)
Move a couple larger strings from rodata to flash (#6976)
clear _canReuse in setUrl if its not a local redirect (#7039)
Fixes large payload issues for sendRequest (#7051)
Better follow redirection for HTTPClient (#7157)

Library - mDNS

Update LEAmDNS.cpp (fix issue #6982) (#7025)
use STA as default interface in mDNS (#7042)
Additions to UdpContext needed for LEAmDNS2 (#7048)
mDNS: protect MDNSResponder::queryService against misuse (#7216)
Add isRunning getter to check is ::begin already called (#7219)
Changing listen to listen the current iface only instead of 0 (#7217)

Library - Servo

Define MAX_SERVOS to 12, like original Servo.h (#6999)

Libraries

Various String handling cleanups (Libraries&Core) (#6945)
Set a value for SSDP notify interval (#7110)

Documentation

Installation guide for PlatformIO (#7142)
Fix RST links for PlatformIO (#7143)
(STA) Fixed misplacement of back quotes (#7247)

CI

Fix Windows CI build (#6927)
fix CI: switch to python3 for pio (#7035)
update to new prebuilt win sed version (#7062)
Switch espressif8266 platform to development branch in PlatformIO build (#7170)
fix style checking: (#7222)

Examples

CaptivePortal: improve HTML quality (#7227)
ESP8266WebServer: Revamp of the FSBrowser and SDWebServer examples (#7182)

Boards

Made changes to include "ESP8266_" with ITEAD board names, {build.board}, (#7024)
Add support for eduino wifi (#6554)
Add 2MB obtion to 8285 generic board (#7163)
esp8285: properly initialize free gpio as input (#7165)

Build System

Add back mklittlefs for linux32 target (#7011)
Use a python3 script to call python3 (#6960)
boards.txt.py: Use correct file name when writing (#7018)
PIO: Allow using custom linker scripts (#7078)
package builder: updates for alpha releases (#7088)
Switch espressif8266 platform to development branch in PlatformIO build (#7170)
Use F_CPU if (?) CPU frequency switch is compile-time only (#6833)

Device tests

device tests: some of them can be run on host (#6912)
Add test for FS::open("w+") (#7241)

Boot

eboot: fix linking and padding (#7047)
Allow GZIP compressed flash updates (#6820)

Building on host

host build: optimistic_yield() wrongly delays() instead of avoiding excessive yields (#6802)