About Egern
Egern is a feature-rich and powerful networking tool, specifically designed for proxying, intercepting, and modifying network traffic. Key features include: . Comprehensive recording of TCP, UDP, DNS, and HTTP network...
Egern is a feature-rich and powerful networking tool, specifically designed for proxying, intercepting, and modifying network traffic.
Key features include:
. Comprehensive recording of TCP, UDP, DNS, and HTTP network traffic.
. Support for a wide range of rule types: domain, domain keywords, domain suffix, domain regular expressions, domain wildcard, geo-location, IPv4/IPv6 CIDR, URL regular expressions, logical, protocol, user-agent, rule sets, and default rules.
. Flexible policy group options: selection, automatic testing, fallback, load balancing, and external policies.
. Support for multiple proxy protocols: HTTP, SOCKS5, Shadowsocks, Trojan, Hysteria2, TUIC, Vless, and Vmess.
. Effortlessly decrypt HTTPS traffic using Man-in-the-Middle attack techniques.
. URL rewriting capabilities, allowing you to freely customize network requests.
. Highly customizable request and response header rewriting functionality.
. Versatile request and response content rewriting abilities.
. Utilize JavaScript to provide customized operations on request and response data.
. Support for local HTTP proxy server and local SOCKS5 proxy server to meet various networking needs.
. DNS forwarding rules can proxy traffic to servers that support DoH, DoT, and DoQ protocols.
. Sync configuration information across devices with iCloud, ensuring consistent network settings anywhere, anytime.
As your ultimate network management tool, Egern helps you easily navigate various network environments and achieve efficient network control and debugging. Whether you're a network security expert, developer, or simply interested in network management, Egern will become an indispensable tool. Experience the powerful features of Egern and create your own exclusive networking environment today!
Twitter: https://twitter.com/byteallen
New Features
· Added support for the anytls protocol
· Surge proxy configuration parser now supports HTTPS, TUIC, and anytls protocols
· VLESS Vision now supports XUDP UDP relay based on MUX
· Added DoH3 (DNS over HTTP/3) support for DNS
· Hy2 now supports the Brutal congestion control algorithm
· JS scripting enhancements: support specifying named policies via the policy parameter, support inline proxy descriptors via policy-descriptor, and added an insecure parameter to skip TLS verification
· Support batch closing policy connections on the Policy Group management page
· Support closing specific connections from the connection list
· Added new DNS forwarding rule match types: Domain, Domain Keyword, Domain Suffix, SSID, BSSID, Cellular
· Added a risk confirmation prompt when enabling Exclude Route 0.0.0.0/31
Improvements
· Refactored the JS engine runtime to improve overall stability and performance
· Optimized domain resolution performance
· Improved proxy UDP throughput
· Optimized proxy protocol encryption stack performance
· Significantly improved WireGuard upload and download speeds
· Optimized policy group failover logic, fixed overly aggressive switching, and added policy change notifications
· Split DNS upstream logic: system now represents the DNS servers configured by the current system or network interface, and bootstrap represents bootstrap resolvers. They are no longer aliases and are handled independently
· Renamed DNS fields: wildcard to domain_wildcard, regex to domain_regex
Bug Fixes
· Fixed abnormal behavior in SOCKS5 UDP relay
· Fixed excessive WireGuard timer error log output
· Fixed connection domain filtering match failures
· Fixed occasional disappearance of list separators in the UI
· Fixed extremely slow upload and download speeds in Hy2 and TUIC
Previous Versions
Here you can find the changelog of Egern since it was posted on our website on 2023-07-03 09:31:02.
The latest version is 2.16.0 and it was updated on 2026-03-13 19:53:20. See below the changes in each version.
Egern version 2.16.0
Updated At: 2026-03-02
Changes: New Features
· Added support for the anytls protocol
· Surge proxy configuration parser now supports HTTPS, TUIC, and anytls protocols
· VLESS Vision now supports XUDP UDP relay based on MUX
· Added DoH3 (DNS over HTTP/3) support for DNS
· Hy2 now supports the Brutal congestion control algorithm
· JS scripting enhancements: support specifying named policies via the policy parameter, support inline proxy descriptors via policy-descriptor, and added an insecure parameter to skip TLS verification
· Support batch closing policy connections on the Policy Group management page
· Support closing specific connections from the connection list
· Added new DNS forwarding rule match types: Domain, Domain Keyword, Domain Suffix, SSID, BSSID, Cellular
· Added a risk confirmation prompt when enabling Exclude Route 0.0.0.0/31
Improvements
· Refactored the JS engine runtime to improve overall stability and performance
· Optimized domain resolution performance
· Improved proxy UDP throughput
· Optimized proxy protocol encryption stack performance
· Significantly improved WireGuard upload and download speeds
· Optimized policy group failover logic, fixed overly aggressive switching, and added policy change notifications
· Split DNS upstream logic: system now represents the DNS servers configured by the current system or network interface, and bootstrap represents bootstrap resolvers. They are no longer aliases and are handled independently
· Renamed DNS fields: wildcard to domain_wildcard, regex to domain_regex
Bug Fixes
· Fixed abnormal behavior in SOCKS5 UDP relay
· Fixed excessive WireGuard timer error log output
· Fixed connection domain filtering match failures
· Fixed occasional disappearance of list separators in the UI
· Fixed extremely slow upload and download speeds in Hy2 and TUIC
Egern version 2.15.0
Updated At: 2026-01-26
Changes: New Features
· Added support for the WireGuard protocol
· Introduced Conditional Policy Groups, allowing automatic selection of sub-policies based on network conditions
· The selected state of policy groups can now be saved with the configuration, preventing loss when switching configurations
· Policy groups now support show/hide hints
· In the policy page, long-press editing is supported when a sub-policy of a policy group is itself a policy group
· The connection list now supports displaying the proxy chain
· The IP list in connection details is now displayed as a half-screen popup
· The DNS cache list now shows the Upstream source, expands the search scope, and displays TTL on the details page
· Resource updates now support direct access to resources that previously failed to update
· Added an independent script log
· Added support for custom themes
Improvements
· Optimized kernel memory usage
· Optimized download speed and memory usage for QUIC proxy protocols (Hysteria2, TUIC)
· Improved connection performance for QUIC proxy protocols
· Introduced a brand-new user-space network stack (about 30% faster than the optimized lwIP in download scenarios, and about 95% faster · than before optimization)
· Improved form animation effects
· Optional form fields are now consistently displayed as “Field Name (Optional)”
· TCP connections now disconnect only after both directions are closed, instead of disconnecting on one-way closure
· Updated the User-Agent format of Egern
· Wildcard matching is now case-insensitive
Bug Fixes
· Fixed a potential crash when scrolling the title menu on the Resources page
· Fixed an issue where configuration state was not initialized immediately when opening the Settings page
· Fixed missing blockQuic fields in TUIC and Hysteria2 protocols
· Fixed an issue where IP addresses were not displayed in connection details when connections were established via a proxy
· Fixed incorrect ICMP Ping error responses
· Fixed an issue where IPv6 proxy servers could not be used when IPv6 was disabled
· Fixed matching logic issues when URL rules did not match the IP address of the connection
Egern version 2.8.0
Updated At: 2025-09-28
Changes: Sep 28, 2025
Version 2.8.0
New Features
· The Hosts feature now supports using IP addresses as keys.
· All request URLs are now processed through the Hosts feature.
Improvements
· VPN proxy subscription updates will now automatically validate content integrity.
Bug Fixes
· Fixed a potential issue in the VLESS Vision protocol.
· Fixed occasional connection failures in the Hy2 protocol.
Egern version 2.5.0
Updated At: 2025-07-29
Changes: Jul 29, 2025
Version 2.5.0
New Features
· Added support for filtering failed connections.
· Detailed error messages are now displayed when a connection fails.
· A new script key-value editor has been added to the settings page.
· When adding rule sets, policy group subscriptions, or modules, if YAML parsing fails, the specific error line and column will be indicated.
· When ShadowTLS is enabled for Shadowsocks, UDP port configuration is now supported.
· The Hy2 protocol will now automatically reconnect on connection failure.
· The current outbound mode is now displayed at the top of the Analytics page (only shown when the mode is not "Rule").
Improvements
· HTTP connections will now display request and response headers even if HTTP packet capture is not enabled.
· Improved connection parsing performance.
· Lists in tool subpages now automatically refresh after configuration changes.
· Deleting a policy will now also remove any dependent items.
· Further optimized the upload performance of the Egern virtual interface — upload speed has improved by approximately 60% compared to version 2.3.0.
Bug Fixes
· Fixed an issue where the MaxMind database could not update automatically.
· Fixed behavior errors caused by rule matching anomalies.
· Fixed a UI update issue when toggling global packet capture and MITM states in the connection log.
· Fixed inaccurate traffic statistics for policies.
· Fixed UI display issues on the connection filtering page.
· Fixed a crash issue that could cause the application to unexpectedly exit.
Egern version 2.1.0
Updated At: 2025-06-01
Changes: Jun 1, 2025
Version 2.1.0
New Features
· Improved notification API for script functionality
· IP information is now displayed even for untested policies
· YAML content can now be viewed directly in the module list
· Added a visual editor for module parameters
Improvements
· Automatically adds .yaml suffix when renaming files in configuration management to prevent format errors
Bug Fixes
· Fixed an issue with template parameter parsing
· Fixed a crash that could occur when running scripts
Egern version 1.31.0
Updated At: 2025-02-19
Changes: Feb 19, 2025
Version 1.31.0
New Features
· HTTP proxy now supports custom headers
· Added support for Shadow TLS protocol
Improvements
· Enhanced compatibility and optimized transmission performance for Vmess protocol
· Improved script execution efficiency
· Optimized user interface in some areas
Bug Fixes
· Fixed issue where hosts domain mapping didn’t take effect for certain domains
· Fixed URI parsing error in Trojan protocol
· Resolved connection failure issue with TUIC protocol on certain servers
· Fixed issue where rule sets failed to resolve domain names in specific scenarios
· Fixed occasional connection sniffing failures in VIF mode
Egern version 1.24.0
Updated At: 2024-09-18
Changes: Sep 18, 2024
Version 1.24.0
Features
· Added support for a script editor.
· The HTTP client in scripts now supports auto-cookie and auto-redirect options.
· Clicking on the latency values in DNS, Connection Details, and Policy Latency Tests now displays IP information.
Improvements
· Optimized the interface of the Map Local feature.
· Improved the REJECT strategy in proxy rules to reduce the startup white screen time caused by ad-blocking rules.
· Updated the documentation on our official website. For details, please visit egernapp.com.
Bug Fixes
· Fixed a script bug.
· Resolved an issue where modifying the request URL scheme in scripts was ineffective.
Egern version 1.23.0
Updated At: 2024-08-25
Changes: Aug 25, 2024
Version 1.23.0
Improvements
· Enhanced compatibility with Surge template parameters.
· Improved download speed for manual resource updates.
· Optimized blocking of QUIC requests from MITM hosts, with automatic blocking of the GQUIC protocol.
Bug Fixes
· Resolved issues with manual resource update failures.
· Fixed several bugs in the script functions.
· Corrected a UI issue on the analysis page when system accessibility features are enabled.
Egern version 1.19.1
Updated At: 2024-04-17
Changes: Apr 17, 2024
Version 1.19.1
Fix crashes
Egern version 1.18.0
Updated At: 2024-03-29
Changes: Mar 29, 2024
Version 1.18.0
New Features
· Smarter Request Logging: The request list now logs more detailed information, providing clearer insights into the app's network requests.
· Support for HTTP/1 and HTTP/2 Connection Reuse: This update introduces support for connection reuse with both HTTP/1 and HTTP/2, improving the efficiency of network connections.
· Revamped HTTP Engine: The HTTP engine has been rewritten. When MITM (Man-In-The-Middle protection) is enabled, HTTP/2 is now the default preference, further optimizing the handling of network requests.
· Enhanced Network Rules: Added support for ssid and bssid rules, allowing for more refined and efficient network connection management.
Improvements
· Compatibility Enhancement: Optimized the compatibility of the surge map local feature, ensuring stable operation across different environments.
· Improved VPN Usage Experience: Upon VPN activation, requests for resource updates and those within scripts will be clearly displayed in the request log, providing users with better control over network requests.
· Script Compatibility Enhancement: The compatibility of scripts has been optimized to ensure smooth execution in various environments.
· Reduced VPN Icon Refresh Rate: The refresh mechanism for the VPN icon has been optimized, reducing the refresh rate and minimizing distractions for users.
Bug Fixes
· Policy Group Selection Fix: Fixed an issue where the automatic selection of Policy groups did not meet expectations, ensuring more accurate policy choices.
· TCP Fast Open Connection Fix: Addressed a problem with TCP fast open connections failing, enhancing the speed of connection initiation.
· Stability Improvement for shadowsocks Connection: Fixed the stability issue with shadowsocks' http obfs connection, ensuring stable network connectivity.
· DNS Mapping Interface Optimization: Resolved an issue causing the DNS mapping interface to freeze, improving the responsiveness and stability of the interface.
