spack/spack v0.13.3

on GitHub

This release contains more major performance improvements for Spack environments, as well as bugfixes for mirrors and a python issue with RHEL8.

• mirror bugfixes: symlinks, duplicate patches, and exception handling (#13789)
• don't try to fetch BundlePackages (#13908)
• avoid re-fetching patches already added to a mirror (#13908)
• allow repeated invocations of spack mirror create on the same dir (#13908)
• bugfix for RHEL8 when python is unavailable (#14252)
• improve concretization performance in environments (#14190)
• improve installation performance in environments (#14263)