With v2.6.0 Fyne is faster than ever and passing Go's race checks too :)

This massive update to Fyne introduces a new threading model that allows it to be a lot faster whilst being free of data races as well!
Developers who use background processing will need to make use of the new fyne.Do and anyone with custom widgets that make use of locking to provide thread safety can now remove it as all Fyne callbacks occur on the same goroutine.

Your app may need a few updates (logs will show you where behaviour changes should be added) but can see up to 3x speed increase depending on the number of graphical elements and how frequently they are updated.

Added

• Added [fyne.Do] and [fyne.DoAndWait] to call from goroutines. This makes it possible to eliminate race conditions.
• Add "Migrations" section to FyneApp.toml to mark migrations like fyneDo = true
• Add Calendar and DateEntry widgets
• Add a third state ([Check.Partial]) to the check widget (#3576)
• Add ability to select label text using new [Label.Selectable]
• Support for storage on web driver (#4634)
• test: Add RenderToMarkup and RenderObjectToMarkup (#5124)
• Add ability to choose a text size for label widget (#5561)
• Show soft keyboard on Web build with mobile device (#4394)
• APIs for testing dialogs (#2771)
• Add ScrollToOffset functions to collection widgets
• Add Prepend method to Accordion (#5418)
• Support Apple intel apps on M1/2 (using Rosetta) (#3971)
• Ability to turn off re-scaling when a window moves between monitors for Linux (#5164)
• Add functions to get text location for position (and vice-versa) with a TextGrid
• Add support for scrolling many lines in TextGrid
• Add Append function to TextGrid
• Add Prepend function to Accordion
• Support custom titles in file dialogs using SetTitleText
• Add utility methods to handle colouring of SVG images
• Add preference bind APIs for list (slice) types
• Added Greek, Ukrainian & Chinese (Simplified) translations

Changed

• All callbacks from Fyne drivers and widgets now call on the same goroutine
• Shortcuts on menu items are now called before widget or canvas shortcuts (#2627)
• ActionItems in an Entry should now match the standard button size
• Tidy the fyne CLI and moved to tools repo (#4920)
• When scroll bar is expanded, clicking above or below the bar scrolls up or down (#4922)
• Add generics to data binding package
• File picker now ignores case (#5113)
• Consistent callback order for dialogs - data before OnClosed
• Improve drop-shadow to show light from top position
• load markdown images from origin when not a URL
• Debug now disabled by default for WASM builds
• Updated theme of inner window borders with circle style and more customisations
• Change Accordion.OpenAll when used with single-open accordion to open the first item instead of none

Fixed

• Fixed all known race conditions
• Decouple clipboard from fyne.Window enhancement (#4418)
• Odd looking SelectEntry with long PlaceHolder (#4430)
• Crash when resizing mobile simulator window (#5397)
• Deadlock when creating widget too fast (#3203)
• Application crashes on .Resize() (#5206)
• Linux (ubuntu) menu shortcuts not working blocker (#5355)
• Slider snaps back to min-value on Android (#5430)
• SoftwareCanvas resize only works properly if it's the last step bug (#5548)
• Showing a disabled menu items with a non-SVG icon generates Fyne error bug (#5557)
• Trying to hide subsequently created popups in a goroutine results in Fyne runtime panic (#5564)
• Table passes negative index to onSelected function (#4917)
• storage.Move() fails to move directories (#5493)
• Tree and Table widgets refresh full content on any scroll or resize (#5456)
• Memory leak from widget renderers never being destroyed blocker (#4903)
• On MacOS SysTray menu does not show when clicked on an active space in second monitor (#5223)
• On MacOs systray tooltip does not show when full window app is active (#5282)
• Panic when opening and closing windows quickly bug (#3280)
• Goroutines showing same window at similar times can forget size races (#4535)
• Panic when confirming or dismissing file open dialog races (#3279)
• richImage may freeze the application in some cases. (#3510)
• Memory usage increases significantly per character in Entry (#2969)
• Submenus not working on mobile (#5398)
• ListWidget with data index out of bounds when modified bound data (#5227)
• After scrolling, first selection in a list jumps that item to the bottom of the container (#5605)
• Accordion could have incorrect layout with multiple items open
• Prevent tapping within a popup from dismissing it, even if non-modal (#5360)
• Resolved performance issues in text and custom theme handling

This is obviously a big update - please get in touch if you have any questions or challenges adopting this new version.
See important upgrade notes at https://docs.fyne.io/api/v2.6/upgrading.

v2.5.5 fixes an incompatibility with Go 1.24 WASM build

A small release as we prepare v2.6.0. This update is necessary for any Go 1.24 users who wish to deploy WASM.

v2.5.4 with bug fixes and new translations

Probably the last release on v2.5.x series as we are already deep into 2.6 prep!

New translations

• Tamil

Bugs fixed

• Checkbox not responding to click because it is too "large"? (#5331)
• Fix progressbar not showing label until first refresh
• FyneApp.toml causes BadLength error (#5272)
• Test suite: failure with locale/language different from 'en' (#5362)
• fix GridWrap crash when resizing to same size without creating renderer
• Submenus not working on mobile (#5398)
• Subtle scrolling bug in List when the last two items are of different size (#5281)
• File picker does not ignore case (#5113)
• Tab "OnSelected" doesn't appear to allow focussing tab content (#5454)
• Documentation fixes

Festive cheer delivered early with latest bugfix release

We are happy to announce release v2.5.3 with many bugfixes relating to custom themes, file dialog and SVG rendering, among others and a few performance boosts too! (see below)

Changed

We made a couple of minor changes that improve overall experience too:

• Smoothly decelerate scroll on mobile
• Added Spanish translation

Fixed

• Starting location can be wrong in file dialogs with custom repository (#5200)
• Improve how shortcut special keys for menu items are rendered on Windows and Linux (#5108)
• Blank page in Chrome for Android
• Mobile Entry: cursor arrows don't work (#5258)
• FileDialog does not handle relative file URIs well. (#5234)
• [Linux] Only change variant when color scheme changes
• [Linux] Window with list flickers in Wayland (#5133)
• Package command fails on OpenBSD (#5195)
• System theme fallback is not working with custom themes
• Translucency and images with Alpha channel (#1977)
• Performance regression when scrolling inside the file dialog (#4307)
• Empty but visible images consume high CPU on 2.4.x (#4345)
• Improved performance of text render caching
• nil pointer dereference in dialog.Resize() for color picker (#5236)
• Tiny files written in iOS may be empty
• Some SVG resources don't update appearance correctly with the theme (#3900)

As always to let us know through GitHub issues if you find anything wrong with this latest release.

v2.5.2 adds Swedish translation, documentation improvements and many fixes

Latest release gets lots of fixes into everyones hands and fixes a compilation break in the go-text/typesetting dependency.

Fixed

• Sometimes fyne fails to setup dark mode on Windows (#4758)
• Memory leak in fontMetrics cache on desktop driver (#4010)
• Fix possible crash with badly formatted json translation
• Tree widget doesn't display higher elements until a user selects one (#5095, #4346)
• Update to the latest breaking API changes in go-text
• Fix wrapping / truncation of multi-font text runs (#4998)
• Test window title is not always set (#5116)
• Deadlock in Button CreateRenderer() (#5114)
• Fix possible crash in theme watching for windows
• Fix issue with Movies folder on darwin file dialog
• widget.Entry: validate when pasting from clipboard (#5058, #5028)
• Reduce contention in some widget locks
• Add Swedish translation
• Improvements to documentation
• Improved temp check for windows/msys
• Fix split in a theme override container

Polishes and text/translation improvements form v2.5.1

The Fyne team are excited to anounce the latest release, v2.5.1.
Building on the success of the 2.5 branch of releases it includes the following fixes:

• Apps with translations in new languages would not be recognised (#5015)
• App ID can be ignored from metadata file with go build/run
• Typing Chinese characters in widget.Entry and perform undo/redo crashes the app (#5001)
• Assets would render Low-DPI before attaching to a canvas
• Single click in file dialog enters two directories (#5053)
• Light/Dark mode detection no longer works on Ubuntu with Fyne 2.5 (#5029)
• Scroll acceleration logic causes scrolling to "jump" suddenly on macOS (#5067)
• SetSystemTrayMenu doesn't work when run in goroutine (#5039)
• stack overflow when calling SetRowHeight in table UpdateCell callback (#5007)
• Resizing List causes visible items to refresh instead of resize (#4080)
• Child widget with Hoverable() interface keeps parent widget's Tapped() function from being called. (#3906)
• App Translation file is ignored / tries to load BR (#5015, #5040)
• Missing theme variant auto-switching (dark/light) for Windows (#4537)
• Get DoubleTapDelay from the OS if an API is available (#4448)
• Entry cursor is not visible with animations off (#4508)
• Redundant justify-content properties in CSS for centered-container class (#5045)
• Update go-text/render to avoid crashing when rendering certain bitmap fonts (#5042)
• Using container.NewThemeOverride leaks memory until window closing (#5000)

v2.5 introduces international support, system font lookup and completes Wayland and Web support (except file handling)

Added

• Internationalisation support and translations (#605, #3249)
• Look up system fonts for glyphs that cannot be found embedded (#2572, #1579)
• Completed support for Wayland on Linux
• Completed support for the Web driver (*except file handling)
• Add support for XDG Desktop Portals when built with -tags flatpak on Linux
• Activity indicator widget
• InnerWindow and MultipleWindows containers
• ThemeOverride container for grouping items with a different theme
• Add NativeWindow.RunNative to use a native window handle (#4483)
• Ability to request display stays on - SetDisableScreenBlanking (#4534, #3007)
• Add Undo/Redo support for widget.Entry (#436)
• Add AppendMarkdown function to RichText
• Add option in List to hide separators (#3756)
• New CustomPaddedLayout for more fine-grained container padding
• Add SizeName property to Hyperlink widget
• Support Ctrl+[backspace/delete] to delete the word to the left or right of the cursor
• Add IntToFloat (and FloatToInt) in bindings Data binding (#4666)
• Add ScrollToOffset/GetScrollOffset APIs for collection widgets
• Add ColumnCount API to GridWrap widget
• Disable and Enable for Slider widget (#3551)
• Function Remove added to List bindings (#3100)
• Form layout can now be vertical (labels above field) or adaptive for mobile
• Add support for Bold, Italic and Underline for TextGrid (#1237)
• Add support for setting a custom resource as the font source for text (#808)
• New test functions NewTempApp, NewTempWindow and TempWidgetRenderer to free resources automatically

Changed

• Fyne now depends on Go 1.19 at a minimum
• Round the corners of scroll bars with new theme value
• Improve contrast of text on highlight background colours
• Layout of iOS and Android apps will adapt when keyboard appears (#566, #2371)
• FyneApp.toml will now be loaded with go build (#4688)
• Text wrapping will now wrap in dialogs (#2602)
• System tray and tray menu icons on will now match theme on macOS (#4549)
• Triple clicking in an Entry widget now selects current line (#4328)
• About menu items will now override the macOS default About
• System tray no longer shows tooltips (until we have full support)
• Double tapping an item in a file dialog now selects and returns
• Widgets should now use theme.ForWidget() instead of theme.Default() or static helpers

Fixed

• Kannada characters not rendering correctly (#2654)
• Notifications are not working on iOS (#4966)
• Incorrect scaling on Steam Deck screen Accessibility (#4896)
• Sometimes the last list row that should be visible doesn't show (#4909)
• RichText swallowing whitespace after Markdown links (#4613, #4340)
• Disabled app tabs can still be selected in popup menu (#4935)
• Don't show title when mouse hover on Systray menu (#4916)
• Trying to access a URL through canvas.NewImageFromURI() in a test results in a panic (#4863)
• Don't insert tab character in Entry when Shift+Tab typed
• Select Does Not Gain Focus When Tapped (#4767)
• binding.Untyped crashes when set to nil bug (#4807)
• Label and Slider not aligned in a FormItem (#4714)
• Windows: App Icon in Notification (#2592)
• Fix possible writing of empty preference data in some quit events
• Allow application to set default view (list/grid) of file dialog before showing it (#4595)
• Fix ScrollToOffset when viewport is larger than content size
• Incorrect row header width in widget.Table (#4370)
• Add missed truncation mode for hyperlink (#4335)
• AppTab does not display blue indicator line if you create it empty and then Append items to it later.
• Many optimisations in animation, draw speed, layout and widget size calculations

Optimisations, storage enhancements and fixes arrive in v2.4.5

This bugfix release has a lot of great improvements, with a focus on mobile storage fixes and resolving some memory leaks.

• iOS files write would fail when over 16KB
• storage.Delete not supported on Android/iOS (#2120)
• layout.formLayout do not handle canvas.Text well in second column (#4665)
• Fix building with ios17.4 (#4741)
• Support template icon for system tray menu icons
• Fix recognition of missing XDG user directories (#4650)
• FileDialog.SetOnClosed not always working (#4651)
• Upgrade GLFW for performance improvements and bug fixes
• Multiple select popups can crash during background operations (#4730)
• Controlling a negative slider with the left arrow key blocks after 8 steps (#4736)
• cmd/fyne: command "get" is broken with Go 1.22 (#4684)
• Race condition during system tray menu refresh (#4697)
• Fyne release on Linux does not set Metadata().Release to true (#4711)
• RichText leaks memory when replacing segments (#4723)

As always do let us know how you get on, we are now pushing forward with v2.5.0.

Lots of bug fixes and speed improvements for 2.4

There is a lot packed into this release - your app will be faster and more robust than ever before!

• Spaces could be appended to linux Exec command during packaging
• Secondary mobile windows would not size correctly when padded
• Setting Icon.Resource to nil will not clear rendering
• Dismiss iOS keyboard if "Done" is tapped
• Large speed improvement in Entry and GridWrap widgets
• tests fail with macOS Assertion failure in NSMenu (#4572)
• Fix image test failures on Apple Silicon
• High CPU use when showing CustomDialogs (#4574)
• Entry does not show the last (few) changes when updating a binding.String in a fast succession (#4082)
• Calling Entry.SetText and then Entry.Bind immediately will ignore the bound value (#4235)
• Changing theme while application is running doesn't change some parameters on some widgets (#4344)
• Check widget: hovering/tapping to the right of the label area should not activate widget (#4527)
• Calling entry.SetPlaceHolder inside of OnChanged callback freezes app (#4516)
• Hyperlink enhancement: underline and tappable area shouldn't be wider than the text label (#3528)
• Fix possible compile error from go-text/typesetting

Let us know if you have any feedback on this latest release :).

Happy holidays and enjoy a better Fyne for your coding projects :)

We have been working on fixes and optimisations in the Fyne project and are happy to list the following as resolved for v2.4.3.

Fixed

• Fix OpenGL init for arm64 desktop devices
• System tray icon on Mac is showing the app ID (#4416)
• Failure with fyne release -os android/arm (#4174)
• Android GoBack with forcefully close the app even if the keyboard is up (#4257)
• *BSD systems using the wrong (and slow) window resize
• Optimisations to reduce memory allocations in List, GridWrap, driver and mime type handling
• Reduce calls to C and repeated size checks in painter and driver code

As always we hope this helps you make better software, faster - let us know if you have any feedback.