v1.2.2 (2026-07-20)

Bug fixes

• Concretization cache:
  • Fix accidental exponential complexity issue in spec hash, and disable for spliced specs (#52665)
  • Fix serialization issues with abstract input spec (#52714, #52716)
  • Prune cache only after write (#52715)
  • Reduce excessive syscalls (#52721)
• Make spack --disable-locks apply to all file system locks used by Spack (#52270)
• Fix a patch file lookup issue when using multiple package repositories (#52675)
• Fix a few issues with spack isolate --self (#52725)
• Fix an issue where repositories did not raise InvalidNamespaceError correctly (#52689)