Slang v2025.12.1
=== Breaking changes ===
No breaking changes
=== All changes for this release ===
69947dec8 Use fossil for IR serialization (#7619)
3865a6596 Language server: sort completion candidate by relevance. (#7626)
7119d9cb4 Catch abort exception from leaking from loadModule (#7627)
b282c88d9 Make copysign function differentiable (#7585)
b4fc380af Language Server Enhancements (#7604)
551d0c365 Replace SLANG_ALIGN_OF with C++11 alignof (#7523)
ebfb8d042 Fix for mixed block/embedded usage of structs in SPIRV (#7608)
279de50f9 Remove a test from expected-failure-github for MacOS (#7526)
20afbfea3 Don't use access::sample for multisample texture in metal (#7601)
141eac9eb Enable tests for CUDA (#7593)
7dd89f2ca Remove swiftshader (#7600)
05ff8850c Fix crash when using wrong type for inout parameter with WGSL target (#7588)
3e1dd65ad [HLSL, SPIRV_1_3] Hoist OpSelect returning a composite into `if`/`else` (#7594)
54a5d7f00 Run full check on merge_queue, but not on push. (#7596)
bee3142ce add task shader alias (#7372)
cd28357bb Fix spurious vk::binding warnings when attribute is present (#7581)
0aa67332a Don't run full gpu tests on merge queue. (#7587)
35f00363d Fix diagnostics not appearing when semantic tokens are disabled (#7477) (#7532)
7ffb9f53e Fix for emitting ArrayStride decoration for arrays of opaque types (#7568)
415adcfd7 Add copilot environment configuration. (#7586)
c701ec00c Defer immutable buffer loads when emitting spirv. (#7579)
83c72fd87 Comment SLANG_OVERRIDE options (#7584)
eb7f3357a Misc language server improvements. (#7569)
5120c1cd0 extend fiddle to allow custom lua splices in more places (#7559)
b903ae062 update slang-rhi (#7494)
c94ca1692 Allow Link time constant array length sizing, warn on unsupported functionality (#7067)

Move separate-debug-info arg to target options (#7540)
* Move separate-debug-info arg to target options
The separate-debug-info command line option is listed under debugging
options, move this to the target options section which includes other
similar flags like -g and -emit-spirv-directly.
* regenerate command line reference
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

=== Breaking changes ===
No breaking changes
=== All changes for this release ===
47475114d Document supported compiler versions in building.md (#7512)
b1fc75fab Add default implementation for determinant (#7505)
4b7a8997c Fix a small typo in CPU target docs (#7507)
551027879 Update spirv-tools and spirv-headers (#7500)
23dcea810 Enabling optix ci pipeline  (#7311)
5da7301d1 remove sccache due to the instability (#7484)
e61f7c497 Fix wasm releases (#7313)
9d01a9031 Fix cuda_fp16 header issue (#7476)
82418b16a Always emit DepthReplacing execution mode when writing to FragDepth (#7450)
9bcbf59b6 Update slang-rhi (#7457)
3ed776159 Add support for on-demand AST deserialization (#7482)
97f328a66 Add merge queue CI trigger. (#7485)
3cbc50011 Fix retry logic for unit test (#7471)
777ac6cae Fix coopvector neg intrinsic. (#7481)
ef6c21af9 Use 1-based argument index for DebugLocalVariable (#7438)
1fb60f25b Delete GFX User Guide (#7474)
3822f9243 Fix additional VVL violations (#7377)
63ca2325d Fix false negative result for CUDA with recent versions (#7409)
8c100305c Fix out of bound buffer access in the preprocessor. (#7475)
4d517794e LanguageServer: Enhance auto completion for override. (#7465)
b9799e613 Update CMake version to 3.26 (#7459)
b6ab113cc Fix slangpy not using correct slang backend (#7334)
14d002ac5 AD cleanup for 'break' replacement (#7456)
60a8f1fc3 Fix for missing signedness cast in SwizzleIR (#7448)
a4345725a Require `override` keyword for overriding default interface methods. (#7458)
07f79b943 Disable periadic diagnostic update on language-server on CI (#7445)
28d957327 Exposing TU-local entity with modules fix (#7449)
bb03daf20 Bump the min shader model version for CUDA 12.8+ (#7415)
6e570b589 Skip processing import declarations after errors (#7393)
6a23949f0 Allow interface methods to have default implementations. (#7439)
e72b33256 Print CUDA version on CI servers (#7413)
84148b80b Fix a bug in empty array legalization. (#7444)
1d8f6f86d Fix SLANG_USE_SYSTEM_SPIRV_HEADERS  (#7371)
debdc7251 Support SM6.9 with GFX (#7387)
497033d93 Fix issue that struct with  member is not its Differential type (#7434)
ad6478f13 Re-enable running slang-rhi-tests (#7360)

=== Breaking changes ===
0d16228ae Add command line option for separate debug info (#7178)
=== All changes for this release ===
3fa382505 Allow checking capabilities in specific stages (#7375)
e37202002 Fix IR layout of 3-element vectors in cbuffers for -fvk-use-dx-layout (#7282)
954ad3d54 remove unnecessary use of std::bit_cast (#7384)
405d438bf Legalise out parameters for vertex shaders on metal (#6943)
d70da65a9 Add optix support for coopvec (#7286)
ab6b5f28d Add release workflow targeting glibc2.17 with ubuntu 18 (#7363)
bfae49d85 Mediate access to ContainerDecl members (#7242)
bfac247ff Fix interface types as RHS of is/as operators (#7234)
10a3b87db Remove unnecessary compile definitions (#7355)
[BREAKING] 0d16228ae Add command line option for separate debug info (#7178)
649d53372 Address issues with GLSL style global in/out vars (#6669) (#6998)
7f04adbfb Disable Link-Time-Optimization by default (#7345)
2203df783 Disable coopvec while using Agility SDK and until graphics driver supports it (#7357)
8abaec701 Update slang-rhi (#7303)