Fable 5.0.0-rc.2 released!

NewsBot · 3 March 2026 22:19

Fable 5.0.0-rc.2 has been released.

Added

[Beam] Add arithmetic tests and support for DivRem, MinMagnitude, MaxMagnitude, Decimal rounding, BigInt.Log (by @dbrattli)

[Beam] Add fable_random.erl and fix Random seeded/NextBytes tests (by @dbrattli)

Fixed

[Python] Fix __hash__ to return native int instead of int32 for Python 3.14 compatibility (by @dbrattli)

[Python] Fix PyPI publish workflow version pattern to support rc tags (by @dbrattli)

[Beam] Bundle fable-library-beam in NuGet package so dotnet fable --lang beam works (by @dbrattli)

[Beam] Fix optional arguments by unwrapping at call sites and padding missing trailing args (by @dbrattli)

[Beam] Fix generic constraint interface dispatch (by @dbrattli)

[Beam] Fix class constructor field invokes and explicit val fields (by @dbrattli)

[Beam] Fix mutable record field mutation (by @dbrattli)

[JS/TS] Allows compiling fable-library-ts for Browser environment (by @goswinr)

Link: Release 5.0.0-rc.2 · fable-compiler/Fable · GitHub