odin-lang/Odin dev-2025-10 on GitHub

New Language Features

Improve type inferencing of literals when calling proc groups
Windows i386 support
Fix Darwin addObserver methods and add support for new Objc_Block
Fix segfault involving string_to_string16 on Linux
Improve OSX threading performance
Basic support for constant union literals
Add -para-poly-diagnostics
Prevent returning a struct containing compound literal slice
Relax signature_parameter_similar_enough on struct params and fix various foreign signatures
Preempt field checking on signature_parameter_similar_enough with a type ptr equality check
Remove stray debug printf

Use .Image_Dimensions_Too_Large in core:image
tick_now: Use f64 (was f32) as a return type of odin_env.tick_now()
Allow missing trailing comma with proc groups in core:odin parser
Fix incorrect json encoding for control characters < 32
Initializing big.Int constants is now "contextless"
Add CancelIoEx and other overlapped I/O functions.
Add missing caller location param to append in strings.Builder
Add "contextless" to small_array get_safe and get_ptr_safe
Zero small_array resize
Unify filepath.join return between Unix/Windows
Fix out-of-band allocations in dynamic arenas by
Fix for temp_file name prefix being deallocated before being used
Add runtime.conditional_mem_zero to improve heap_allocator performance on non-Windows systems
Add digit_to_int to core:strconv
Remove inaccurate tprint comment

Full Changelog: dev-2025-09...dev-2025-10