• #1185: Add support for setting top-level configuration options under each repository, making
  those options repository-specific. See the documentation for more information:
  https://torsion.org/borgmatic/reference/configuration/repositories/
• #1361: Update command-line overrides to support disabling configuration options, e.g.
  "--no-btrfs" to temporarily disable the Btrfs hook.
• #1361: Fix a traceback (TypeError) in command-line overrides when setting a sub-option of an
  option without a configured value.
• #1362, #1364: For the ZFS, LVM, and Btrfs hooks, support relative source paths with a configured
  working directory.
• #1363: For the "restore" action, fix an invalid JSON error when running with the "--dry-run"
  flag.
• Remove support for "rest://" repository URLs, which Borg 2.0.0b25 renamed back to "ssh://".