4.23: 2021-01-13:

• Branch remame can take a regexp and do substitutions on the new name(s).
• The branchify and branchmap commands have been replaced by read options.
• Help directed to a tty goes though $PAGER when long enough to need it.
• Minor bugs related to the "done" end marker have been fixed.

4.22: 2020-12-28:

• Properly handle yet another bizarre Subversion tag-rename case.
• Massage any Subversion branch name to be legal as a git reference.
• Much of "Repository Editing" is now generated from embedded help.
• repotool mirror can now use rsync for pulling repositories.
• Repair repocutter reduce logic and add a test for it.
• New "branchlift" primitive for use after a --nobranch read.
• In SVN lifts, user .gitignores can be merged with svn:ignore properties.
• In SVN lifts, reduce overloading of the "-root" suffix.
• Add --obscure option to reposurgeon strip command, like repocutter.
• --preserve prevents automatic deletion of cv2svn branch creation tags.
• The repocutter see command dumps property settings
• Many improvements to the documentation, including improved cross-references.