This minor release includes several important fixes:
- Fix shell support on Cray (#17386)
- Fix use of externals installed with other Spack instances (#16954)
- Fix gcc+binutils build (#9024)
- Fixes for usage of intel-mpi (#17378 and #17382)
- Fixes to Autotools config.guess detection (#17333 and #17356)
spack installmessage to prompt user when an environment is not explicitly activated (#17454)
This release also adds a mirror for all sources that are fetched in Spack (#17077). It is expected to be useful when the official website for a Spack package is unavailable.