Odin Files

New Language Features

• Add intrinsics.type_is_bit_field
• Add @(no_sanitize_memory) with additions to base:sanitizer

New Compiler Improvements

• Correct spelling in odin doc -help output
• Let -test-all-packages work with -build-mode:test
• Fix package docs
• Fix swizzle in for in statement
• Fix divti3 not being exported
• Fix scope attribute proc grouping
• Forbid multiple uses of -sanitize
• -vet-style: Be strict with type switch case column alignment
• Let compound literal array be broadcast to a struct field of arrays
• Packages with .odin in the name no longer attempt to parse as odin files
• Let -no-entry-point work for Windows DLLs
• Guard against invalid proc types in parameter list
• Push context onto stack before evaluating procedure parameters
• Consider custom #align when determining union tag size
• Ensure volatile status for all atomic operations
• Fix WASM C ABI for raw unions
• Fix invalid selector for acceleration structure
• Fix check_shift
• Forbid nested declaration of instrumentation procedures
• Fix bug where compiler treated uint enums as ints
• Fix load type panic because front-end allows a deref of a type
• Added options to show, obfuscate, trim, and hide source code locations
• Various fixes

New Packages

• vendor/kb_text_shape

Package Improvements

• Add examples/all/sdl3 for all sdl3 dependant packages
• Rewrite Atomic_RW_Mutex
• Add overlapped I/O bindings for Windows
• Allow odin check examples/all for js_wasm target
• Guard against negative index in inject_at
• Print timings to stderr instead of stdout
• Change os2.user_* on Windows to use SHGetKnownFolderPath
• Add core:os/os2 user dirs helper to retrieve common paths like Downloads, Videos, et al
• Clarify strconv.append_* to strconv.write_*
• Remove old @(deprecated) things.
• DXC: Fixed broken bindings of ICompiler and ICompiler2
• Fix GMT+/- timezone handling
• Clarify core:flags variadic behaviors
• Move core:math/bìg tests over to core:testing instead of using Python3 as an oracle
• Add initial tests for big rationals
• Sync chan refactor
• Replace core:posix usage in core:os/os2
• compat allocator improvements
• Fix pool_join hangs if no threads are started
• Fix early join after start
• Expose getpeername in core:net package as peer_endpoint
• Let tests expect assertion failures and signals raised
• Get env buffer
• Allow core:net to be imported with -default-to-panic-allocator
• Update vendor:sdl3 from 3.2.10 to 3.2.16, and vendor:sdl3/image from 3.2.0 to 3.2.4
• More Buddy_Allocator safeguards
• Fix RegEx docs
• Added TIOCGWINSZ to darwin, linux and freebsd
• Escape object file paths properly during linker_stage
• Fix try_send and send
• Added IS_SUPPORTED to core:sys/posix
• Fix issue parsing vendor/stb/image with the core:odin/parser parser
• Fix memory leak in core:math/big.internal_rat_norm
• raylib: Refer to Odin-style enum over original C enum
• sys/linux: Unify IPC_Flags and IPC_Mode bit_sets
• testing: Make test state changes its own feature
• Add slice.suffix_length
• Various fixes

Full Changelog: https://github.com/odin-lang/Odin/compare/dev-2025-06...dev-2025-07