CTK 13.4 prerelease integration - #2437
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…rm -r -f qa/ (NO MANUAL CHANGES)
Resolve the public preview package set and extract it into the existing mini-toolkit layout while preserving stable redistributable behavior.
Exercise one Linux x86_64 Python build through the existing wheel workflow without expanding the regular CI matrix.
…o ctk-13.4-prerelease
Windows preview toolkits ship as local installers rather than redistributable archives, so teach fetch-ctk to download and extract them and re-enable Windows wheel builds in the ordinary CI matrix, including a win-arm64 canary.
The local preview installer bundles per-component archives rather than a flat CUDAToolkit tree, so extract the needed component directories with 7-Zip and merge them into the layout fetch_ctk expects.
Use a single 7-Zip pass, merge directly into the cache staging dir via a separate work directory, and drop prerelease-only unit tests that CI already exercises end to end.
Merge component libs into lib/x64 or lib/arm64 so cuda_bindings can find cudart_static.lib, and bump the prerelease cache key to drop stale flat-lib entries.
Stale Windows prerelease caches were purged manually; the lib/x64 merge fix remains in fetch_ctk_redistrib.py.
Promote the successful canary to the full Python matrix and describe its CUDA 13-only wheel path as a single-major build.
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Jul 28, 2026
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July 28, 2026 20:21
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July 28, 2026 20:33
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This is the integration of all the work on the CTK 13.4 work.
In addition to what was already in #2432, this adds release notes and documentation references and disables some failing CI jobs that aren't necessary for this release.