# Fable 5.25.0 released!

**URL:** <https://forum.devtalk.com/t/fable-5-25-0-released/251230>\
**Category:** Frontend Official News\
**Tags:** newsbot, fable, official-news\
**Created:** [29 October 2026 19:19 UTC](https://forum.devtalk.com/t/fable-5-25-0-released/251230 "2026-10-29T19:19:04Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![NewsBot](https://forum.devtalk.com/user_avatar/forum.devtalk.com/newsbot/32/1114_2.png) [@NewsBot](https://forum.devtalk.com/u/NewsBot)\
**Post date:** [29 October 2026 19:19 UTC](https://forum.devtalk.com/t/fable-5-25-0-released/251230/1 "2026-10-29T19:19:04Z")

</div>

[Fable](https://devtalk.com/fable) 5.25.0 has been released.

> [@](#):
>
> ### 🚀 Features
> 
> - _(all)_ Error on unsupported RegexOptions at compile time (#5180) ([a8cbc5dc](https://github.com/fable-compiler/Fable/commit/a8cbc5dc0c3a96639028057e132b39e559f40ced))
> - _(js/ts/python/dart)_ Support Nullable conversions (#5183) ([6efa86d3](https://github.com/fable-compiler/Fable/commit/6efa86d35c5943dc8bbb6da0f27cc37095276064))
> - _(js/ts/python/dart/beam)_ Support System.Array.BinarySearch and ResizeArray.BinarySearch (#5172) ([d332e7d4](https://github.com/fable-compiler/Fable/commit/d332e7d42c889f172bb9501f505292abf519752f))
> 
> ### 🐞 Bug Fixes
> 
> - _(all)_ Warn on duplicate names in erased unions (#5169) ([459166d2](https://github.com/fable-compiler/Fable/commit/459166d2500a963a3616d8b1a63e1d8585d61ec6))
> - _(all)_ Recompile inline users of a file with a signature (#5179) ([b383673d](https://github.com/fable-compiler/Fable/commit/b383673da61cfe3ca06416a624aaafbd732f876c))
> - _(all)_ Accept RegexOptions.NonBacktracking (#5178) ([a61ec8a1](https://github.com/fable-compiler/Fable/commit/a61ec8a1583830599a7ffb2dfb4d093e99902d4f))
> - _(all)_ Keep F# diagnostics for scripts on Windows (#5218) ([ce886964](https://github.com/fable-compiler/Fable/commit/ce886964cb4521dc4c01c8da089b97c9d9742814))
> - _(beam)_ Raise ArgumentNullException from nullArg ([0b8f77f9](https://github.com/fable-compiler/Fable/commit/0b8f77f9880bcbd9317272d9b0d89f8fe8ac0257))
> - _(beam)_ Keep parameter name in ArgumentException ([9e5d34f7](https://github.com/fable-compiler/Fable/commit/9e5d34f7b32cfdfb8b1adc93378895b26a5d69b9))
> - _(js/ts)_ Format DateTimeOffset in its own offset (#5171) ([04ddbd20](https://github.com/fable-compiler/Fable/commit/04ddbd2027e03f4cf7b0b22fe886fdabadf26d93))
> - _(js/ts)_ Support %o in sprintf and interpolated strings (#5175) ([e13e7b0f](https://github.com/fable-compiler/Fable/commit/e13e7b0fdc16d26793833c77a11d242ccc61109b))
> - _(js/ts)_ Keep column 0 mappings in source maps (#5176) ([04ba3853]([fix(js/ts): keep column 0 mappings in source maps (#5176) · fable-compiler/Fable@04ba385 · GitHub](https://github.com/fable-compiler/Fable/commit/04ba3853620811f6ed66eb)…

Link: [Release 5.25.0 · fable-compiler/Fable · GitHub](https://github.com/fable-compiler/Fable/releases/tag/5.25.0)