v2026.7

=== Breaking changes ===
51b06a31e Deprecate 'volatile' in Slang 2025 and remove it from Slang 2026 (#10720)
63170f81b Fix missing SPIR-V capability atoms for subgroup operations (#10587)
c44f0a2c4 Support CoopVec for SM 6.10 backend (#10723)
45ccce9a3 Refactor auto-diff implementation. (#9808)
72fdc442c Metal: Add metal 4 capability and add required threadgroup size attribute. (#10592)

=== All changes for this release ===
7346ac551 Claude script with multi-agents (#10864)
b6c9de1de Fix forward-mode autodiff crash for no_diff scalar in generic vector construct (#10883)
01d9523ee [codex] Diagnose non-copyable interface conformance (#10818)
7d68b4d49 Prevent accidental backward-compatibility breaks in slang.h (#10890)
28b64e5ff Fix GLSL emitter missing bitCast from UInt64/Int64 to Double (#10851)
72dfd8b9c Expand sanitizer nightly to full test coverage (#10824)
1cabae465 Fix memory leak when replay system is statically linked but never used (#10862)
be166b013 Fix replay crash on getSessionDescDigest due to null input pointer during playback (#10834)
88ca756ac Update slang-rhi to fix the CI intermittent failure (#10875)
e72c2f574 Fix crash in stdlib reference doc generation caused by autodiff func types (#10867)
64efeb9f4 [codex] Fix interface differential pair witness lowering (#10829)
3d34334c3 Fix Setup Vulkan ICD step on read-only /etc/vulkan/icd.d mount (#10868)
b7d1a2caa Fix Metal DescriptorHandle as_type cast in dynamic dispatch (#10849)
2bccc27f1 Fix intermittent build failures with SLANG_EMBED_CORE_MODULE=OFF (#10840)
cc649df53 Fix crash when entry point param is a struct containing an interface field (#10856)
91378eb8b Fix ICE when using groupshared with interface-typed variables (#10846)
fce0e4af0 Fix crash when passing struct with interface field by value (#10767)
a4c543563 Emit E50100 for StructuredBuffer<IInterface> without conformances (#10807)
16fe8c5a2 Update documentation for volatile (#10844)
4d2fab161 Fix UBSan findings: null pointer offset, misaligned VM access, integer overflow (#10831)
391d4e8b2 Diagnose Ref<T> as struct field instead of ICE (#10809)
61cc41d0d Add data=[bufferName] test infrastructure (#10015) (#10713)
e74c7823e Add functional tests for autodiff generic constraints and PR 9808 features (#10733)
68cb3714e Fix prelinkIR crash from self-referencing Generic subtrees (#10847)
99438b99f Enable tuple dispatch test and add backend coverage (#10172) (#10801)
[BREAKING] 51b06a31e Deprecate 'volatile' in Slang 2025 and remove it from Slang 2026 (#10720)
4f35f2cfe Add tests for autodiff and dynamic dispatch intersection (#10734)
a593d3a5a Fix pip3 not found in glibc 2.28 release workflow (#10814)
677f3a528 Add [RemovedSince] for scheduled declaration removal (#10816)
ee50d090e Add structured environment dump for Windows and macOS CI tests (#10838)
696644f72 Fix segfault in prelinkIR when compiling neural.slang with slang-boot (#10835)
729e59592 Make backend codegen thread-safe across parallel entry point compiles (#10792)
990d07ddc Scope GPU retry to merge queue and revert to github.token (#10820)
ae02d56e0 Fix intermittent Vulkan test failures from libEGL_nvidia.so crash (#10825)
ddf089446 Diagnose unconstrained generic specialization with existential type (#10263) (#10738)
1de4aea20 Containerize Linux coverage workflow (#10783)
ee9587df0 Avoid invalidating caches for synthesized function extensions (#10803)
b23633e79 Add aarch64 to glibc 2.28 release workflow (#10777)
541d520fd Fix CI analytics date range filtering (#10795)
c01388b55 Fix ICE when using ByteAddressBuffer.Load/Store with interface types (#10768)
5deaea9f2 Fix crash when HitObject::TraceRay payload is an empty struct (#10634)
ef3d763e9 Emit E30300 for is/as operators on unrelated concrete types (#10760)
f09c7e8f4 Move @SpecConst rate propagation from IR cloning to IR instruction creation (#10694)
41c9c1c2e Fix _getLaneId() for multi-dimensional CUDA thread blocks (#10784)
589c30081 Fix GPU retry dispatch permission in merge queue (#10782)
915942b9d Add diagnostic tests for DerivativeMember and differentiability modifiers (#10731)
fce606a1c Add diagnostic tests for custom derivative error paths (#10730)
9c5698e55 Add diagnostic tests for core autodiff error paths (#10729)
2c65849f5 Add diagnostic tests for loop variable mismatch warnings in differentiable functions (#10732)
30ff40c2a Unroll loops in "on-demand" specialized functions (#10763)
cfb61464f Quick round of cleanups post-autodiff overhaul (#10718)
4dc75c6c3 Reject non-copyable types in regular interface implementations (#10758)
8f1471194 Fix variadic nominal equality witness construction (#10773)
a66c8acb1 Reduce sanitizer CI test server count from 8 to 2 (#10780)
8d31ea363 Add specific diagnostic for circular interface conformance in dynamic dispatch (#10686)
9c4d9a5a8 Fix sanitizer CI false failure when tests crash without ASAN logs (#10778)
a59cfda64 Language reference: memory model (#10657)
ada36f8c7 Improve diagnostic for This type mismatch after existential type erasure (#10759)
20efa738f Add ASan/UBSan CI job for Linux (#10573)
c4a0d11e1 Add regression test for autodiff with generic interface and [BackwardDerivative] (#10737)
71e16d9b6 Deduplicate populate-sccache build steps using reusable workflow (#10710)
f18511004 Add diagnostic for parameter without default following one with default (#10626)
ef418db85 Add regression test for #6856: returning an expand expression (#10629)
[BREAKING] 63170f81b Fix missing SPIR-V capability atoms for subgroup operations (#10587)
199db2116 Add Tuple<IBar, IBar> test coverage for issue #9971 (#10753)
318e16fd5 Move dyn interface inheritance validation into type resolution visitor (#10761)
98e4184cc CI: Add early disk space check to fail fast on low disk (#10715)
350388a24 Detect mid-test GPU crashes for automatic CI retry (#10762)
1bc5412ad Add sudo to clang CI container, bump to v1.0.1 (#10766)
56e13abad Convert IHasDiffTypeInfo interface to __hasDiffTypeInfo custom constraint and witness logic. (#10748)
6ab12651a Fix interface-typed entry point parameter crashes and missing CUDA diagnostic (#10681)
edd3e3ab5 Add tests for generics: where clauses, constraints, and default parameters (#10546)
b16744477 Remove gcloud SDK setup from LLVM download (~3 min savings on Windows) (#10756)
ec88a5171 Add Clang 18 CI container for sanitizer/coverage jobs (#10755)
475a00aa5 Fix legalization of complex struct types with void-typed fields (#10744)
7c8e7cb25 Improve secure CRT portability by detecting and implementing missing definitions (#10442)
e999f855c Remove lvalue-ness when casting-to-super interface->interface (#10449)
0a761880a Use OpCompilerDictionary for specialization caching (#10719)
cbcc86b07 Track slang compiler library when building neural module (#10662)
4c02a7b89 Update SPIRV submodules (#10740)
d35ce5c2a Fix crash in calcCodePointCount when resolving source locations (#10616) (#10664)
89770bfb2 Pin TypeScript version on WASM build to the latest stable version pre-6.0 (#10721)
f303d6920 Fix git fetch command for SPIRV-Headers update
4fba8c8fa Implement Conditional<> as an intrinsic (#10736)
[BREAKING] c44f0a2c4 Support CoopVec for SM 6.10 backend (#10723)
e55e901c0 Support CoopMat for SM 6.10 (#10711)
6a0e15509 Diagnose ref accessors returning interface types in dynamic dispatch (#10697)
f6e4a0c51 Reject pointer fields in dynamic dispatch for SPIRV (#10679)
80815507a Fix unreachable E72 diagnostic for invalid type conformance options (#10685)
27ac259cf Diagnose explicit generic specialization with interface type (#10682)
[BREAKING] 45ccce9a3 Refactor auto-diff implementation. (#9808)
473afb979 Fix sccache cache misses for macOS and Linux aarch64 builds (#10708)
c739e0467 Fix PR project workflow to check org membership instead of team (#10704)
175c91dd4 Fix Windows build race: proxy DLL .pdb collision (#10702)
c9a188360 Add workflow to track PR source on project board (#10696)
a08858639 Fix Windows build race: proxy DLL .ilk collision (#10698)
95f1f662f Remove slang-binaries module and fetch the official DXC release package (#10684)
[BREAKING] 72fdc442c Metal: Add metal 4 capability and add required threadgroup size attribute. (#10592)
88a05d8f2 Fix vkAcquireNextImageKHR() Vulkan validation error in slang-gfx (#10640)
b75875b52 Install a pkgconfig file for slang-compiler (#10171)
d22eebfb0 Add IR instructions for cooperative matrix/vector ops (#10643)
8963dd545 Fix sanitizer findings: buffer overflows, null pointer UB, and Optional bugs (#10597)
425eced3f disallowed-by-default nested declaration checking (#10456)
e27c8f691 Diagnose unpackable types in dynamic dispatch instead of ICE (#10678)
d2e8ab565 Split CI analytics into monthly files to avoid GitHub 100MB limit (#10690)