Release Notes: 0.5.1

What's new since 0.5.0?

• Updated git to 2.21.0 for the helper.
• Experimental native mercurial support (used when mercurial libraries are not available) now has feature parity.
• Try to read the git system config from the same place as git does. This fixes native HTTPS support with Git on Windows.
• Avoid pushing more commits than necessary in some corner cases (see e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=1529360).
• Added an --abbrev argument for git cinnabar {git2hg,hg2git} to display shortened sha1s.
• Can now pass multiple revisions to git cinnabar fetch.
• Don't require the requests python module for git cinnabar download.
• Fixed git cinnabar fsck file checks to actually report errors.
• Properly return an error code from git cinnabar rollback.
• Track last fsck'ed metadata and allow git cinnabar rollback --fsck to go back to last known good metadata directly.
• git cinnabar reclone can now be rolled back.
• Added support for git bundles as cinnabarclone source.
• Added alternate styles of remote refs.
• More resilient to interruptions when HTTP Range requests are supported.
• Fixed off-by-one when storing mercurial heads.
• Better handling of mercurial branchmap tips.
• Better support for end of parts in bundle v2.
• Improvements handling urls to local mercurial repositories.
• Fixed compatibility with (very) old mercurial servers when using mercurial 5.0 libraries.
• Converted Continuous Integration scripts to Python 3.