Release notes from rehex

0.63.4

2025-11-23T15:35:27Z

This is a bugfix release, changes below:

Save selected value colour map in default view (#268).
Fix blurry text/icons when using DPI scaling under moden Windows (#267) (Thanks to @clin1234).
Fix crash when pressing enter in search for value and search for byte sequence dialogs (#272).

0.63.3

2025-10-16T09:57:01Z

This release contains improvements to the bitmap preview tool, text search, disassembly and tool detaching/docking, full list of changes below:

Add option to change bitmap visualisation image background to a chosen colour (#258).
Copy and save full-size image with alpha channel from bitmap visualisation instead of the preview image.
Add light icons for use with dark themes to bitmap visualisation and histogram views (#262).
Add search history to text search dialog (#260).
Work around crash with large bitmap previews on Linux (#263).
Improve performance of bitmap visualisation.
Added missing MOS6502 and Motorola 6800/68k disassembly support for x86 Windows (#264).
Added RISC-V and WASM disassembly support (where supported by host Capstone library).
Implement tool panel detaching/docking under Wayland (#252).
Update detached tool window title when tab is changed.
AppImage updated to newer wxWidgets/GTK for compatibility with newer Linux distributions.

0.63.2

2025-07-14T08:24:28Z

This is mostly a performance/bugfix update, changes since 0.63.0 are below:

Improve performance of templates that declare large numbers of file variables.
Fix selecting the byte range encapsulated by a comment (#255).
Add "Jump to end" command to comments panel context menu (#254).
Improve rendering performance and UI responsiveness, particularly when a large number of colours are in use (#257).
Fix searching within a range.
Default to selection when a range is selected prior to opening search dialog (#256).

0.63.1

2025-07-13T14:04:13Z

Release 0.63.1

0.63.0

2025-06-12T15:00:46Z

I'm pleased to announce the release of REHex 0.63.0!

The first new feature I'd like to highlight is the "visual scrollbar", which you can enable to show the average entropy throughout the file, highlighting areas which appear to have more or less information encoded as shown below:

The same analysis backend is also hooked up to a new "Data visualisation" tool panel which can display the whole file or a custom selection/range:

Oh yeah, you can now drag tool panel tabs to other edges of the main window, or even detach them to separate windows (except when using the Wayland display manager on Linux), did I forget to mention that? Because you can finally do that :D

For Windows users, there is now an installer which will install the editor and add an association for all file types, so that it will appear in any file's "Open With" menu. The standalone .zip releases will continue to be provided too.

For macOS users, the application is now a dual-architecture executable for Apple Silicon and Intel, which should provide a performance boost on M1 (or later) Macs, it is also signed/notarised to keep the Gatekeeper warnings to a minimum and it is available on the App Store, if you prefer to download software that way.

Aside from those headline features, the full change log of this release below:

Add non-modal "Jump to offset" dialog option (#242).
Add "Repeat last 'Jump to offset'" command (#242).
Add "Visual Scrollbar" for high-level overview of file contents.
Add "Data visualisation" tool for overfiew of file/selection contents (#230).
Add metadata import/export commands (#248).
Fix crash when <charset = "US-ASCII"> is specified for a file variable in a template (#246).
Add highlight functions to scripting API and template language (#247).
Fix memory leaks in bitmap preview tool and metadata serialisation.
Suspend scanning for strings when the strings tool is hidden.
Fix the continue/reset buttons in the strings tool not working correctly.
Fix horizontal scroll position being set out-of-range when the window is resized in some situations.
Fix bitmap preview tool not following cursor correctly (#244).
Allow detaching tool panels to floating windows or docking them to any side of the main window (#229).
Reduce unnecessary padding in decimal offsets (#235).
Fix range selection input for checksum/histogram on macOS.
Fix selection being prematurely initiated when the mouse is clicked over file data.

I hope you find this software useful, please open an issue for any bugs you find or features you would like to see added!

0.62.1

2024-07-25T19:28:57Z

This release fixes the x86 Windows build so that it works on pre-Nehalem/Bulldozer (circa 2008) CPUs.

For x64 Windows and any other operating systems, 0.62.0 is still the latest release.

0.62.0

2024-07-20T18:48:36Z

This release includes changes and new features to assist editing of sub-byte-width values and non-byte-aligned values in files:

Add bit array data type (#167).
Allow selecting and setting comments/highlights/types on bit-sized/aligned quantities, not just byte-aligned (#155).
Allow defining arbitrary integer types, up to 64 bits wide (#215).
Allow navigating hex data by nibbles rather than bytes (#58).

There are also improvements to the highlighting feature, and general usability improvements:

Allow colouring data by byte value (#223).
Allow changing/defining custom highlight colours and assigning labels to them (#227).
Use dimmer highlight colours for dark colour schemes (#227).
Save highlight colours/labels per-file (#60).
Allow changing keyboard shortcuts (#226).
Add Shift+Enter shortcut for "OK" in the comment dialog (#226).
Display offset in both decimal and hexadecimal in status bar (#228).
Fix handling of relative paths specified on the command line when opening in an existing instance (#237).

On the build/pipeline side, I've switched the toolchain used for the 32-bit Windows version (rehex-0.62.0-win-x86.zip) to one that can run on earlier versions of Windows (XP and above).

0.61.1

2024-03-13T22:26:32Z

This release fixes data being displayed from the wrong point in the file when "Collapse matches" is enabled in the file comparison window.

0.61.0

2024-02-14T23:53:40Z

Changes since 0.60.1:

Permit trailing commas in template enum definitions (#216).
Add overwrite/insert toggle to "Fill range" dialog (#213).
Add copy/export context menu commands to strings tool (#210).
Fix temporary hang in strings tool when processing large files (#217).
Fix settings not being saved during application exit.
Batch comments panel updates to improve responsiveness (#205).
Add search field to comments panel (#204).
Add bit editor tool.
Add checksum tool (#219).
Add options to search for floating point values.
Don't reload files modified externally when requested not to.
Start search when Enter is pressed in search dialog input field, or search backwards when Shift+Enter is pressed.
Add "Reload automatically" toggle to "File" menu to automatically reload the file when modified externally (and not in the editor) (#222).
Preserve scroll position when reloading file.

0.60.1

2023-07-29T00:08:12Z

Its been a long time since the last release, but hopefully worth the wait!

I've grouped the changes since 0.5.4 into categories below:

New features

Add data histogram tool (#140).
Monitor for open files being externally modified and allow reloading (#124).
Add "Delete comment and children" context menu command to delete a comment and any comments encapsulated by it (#198).
Allow dragging tabs between windows or out to new ones.

Quality of life improvements

Use virtual offsets in "Select range" dialog.
Don't re-open files to save when there are no changes (#193).
Improve performance when large numbers of comments are defined.
Open original file when passed a rehex-meta file on the command line (#207).

Character set handling

Add <charset = "XXX"> syntax to templates (#184).
Add character set option to text search (#182, #200).
Add IBM codepage 866 and Windows-1251 (#208).

Binary templates

Expose current array index as ArrayIndex when expanding arrays of structs in templates (#191).
Fix true/false not being usable inside template functions/structs (#197).
Add new ReadString(), SPrintf(), SetComment(), StringLengthBytes(), ArrayPush(), ArrayPop() and OffsetOf() template function.
Fix repeated execution of the same switch() block in a template (#202).
Add 'private' variables to template language.
Fix template format strings that expand to further format tokens.
Fix template error when converting a float to an int.
Remember recently selected templates (#183).
Implement lexical variable scoping in templates and allow functions to access global variables defined above them (#190).
Add "Apply template from cursor" option to binary template tool.

Bug fixes

Fix crash when running rehex for the first time on some systems (#194).
Correctly draw insert cursor over highlighted data and at the end of the file (#196).
Fix cases where the strings tool would appear to run forever with an empty file.
Remove strings from the strings panel when they are deleted from the file.
Fix crash when attempting to open a directory/bundle on macOS.