[Stephan T. Lavavej (StephanTLavavej)]

Changelog

• Code cleanups:
  • Removed compiler bug workarounds.
• Infrastructure improvements:
  • Updated dependencies.
    • Updated MSVC Compiler to 19.53.36930 (now required).
    • Updated Python to 3.15.2 (now required).
    • Updated CUDA to 13.5.0 (now required).

Commits

• checkout-submodule.ps1: [superseded] Use git rev-parse to get submodule SHAs.
  • Suggested by David Justo (@davidmrdavid) in Toolset update: MSVC Compiler 19.53.36829, Python 3.15.0, EDG citations #6491 (comment), git rev-parse is a significantly simpler way to get submodule SHAs. This commit was superseded by my overhaul in the following commits.
• checkout-submodule.ps1: Capitalize the Submodule parameter.
• Avoid configuring boost-math.
  • Instead, define BOOST_MATH_STANDALONE and add the include path. This makes the next commit possible:
• Overhaul submodule checkout and use sparse checkout for boost-math.
  • This reduces its working tree from 108.3 MB to 9.2 MB. When cloning the repo, our baseline size of .git is 37.9 MB. After checking out just the boost-math submodule, this reduces the size of .git from 68.7 MB (+30.8 MB) to 40.3 MB (+2.4 MB).
• provision-image.ps1: Adjust how we add Python to the path.
  • Even though we don't need to, I think that updating the current PowerShell session's path is a good idea for future maintenance.
• create-1es-hosted-pool.ps1: Cycle locations.
• create-1es-hosted-pool.ps1: Replace deprecated 'enableSpot' property with 'poolVmPriority'.
  • According to internal docs for Spot VMs.
• config.yml: Remove skipComponentGovernanceDetection.
  • It was renamed to skipComponentGovernanceDetection2 on 2024-11-19, so our attempted skip has been non-functional for 2 years. Since it hasn't been causing us trouble again, it's less risky from a compliance perspective to remove the skip, instead of attempting to update it.
• Python 3.15.2 (now required).
• CUDA 13.5.0 (now required).
• MSVC Compiler 19.53.36930 (now required).
• Fix VSO-3021331 by skipping flaky notify_all_at_thread_exit_lwg3343.pass.cpp.
• Remove workarounds for DevCom-878972 "#pragma loop(ivdep) should be accepted in constexpr".
  • This was fixed by MSVC-PR-799580 on 2026-10-27.
• Remove workarounds for VSO-2696854 "C1XX should support [[fallthrough]] in C++14 mode".
  • This was fixed by MSVC-PR-792175 on 2026-10-13. Clang and EDG already supported this.
• Remove workaround for DevCom-10892055 VSO-2453093 "ADL fails to consider the namespace associated with the base class under a specific scenario".
  • This was fixed by MSVC-PR-800255 on 2026-10-29.
• create-1es-hosted-pool.ps1: Pass -BlockDeletionBeforeEndOfLife:$false to New-AzGalleryImageVersion.
  • Something started enabling BlockDeletionBeforeEndOfLife by default (likely in Azure PowerShell 16.5.0), preventing gallery image versions (and therefore their resource groups) from being cleaned up. See the docs for New-AzGalleryImageVersion -BlockDeletionBeforeEndOfLife and PowerShell [switch] parameters.
• PowerShell 7.7.0, now an extracted ZIP.
  • The MSIs are no longer available. Avoiding the installer appears to make VM setup significantly faster (by several minutes).
• New pools.
• Three libcxx tests in std/language.support/support.dynamic/new.delete are now passing for ASan.
  • Despite the fact that make operator new more standard compliant  google/sanitizers#295 is still active. They were fixed by [asan] Adopt sanitizer_common operator-new framework llvm/llvm-project#196388, although that was reverted by Revert "[asan] Adopt sanitizer_common operator-new framework (#196388)" llvm/llvm-project#236607 and will be relanded later.

STL-ASan-CI passed.

[Stephan T. Lavavej (StephanTLavavej)]

I'm mirroring this to the MSVC-internal repo. Please notify me if any further changes are pushed, otherwise no action is required.