bump_version could previously only create releases. It now provides two
subcommands, and the mutually exclusive --major/--minor/--patch flags (as
well as the explicit --version option) are replaced by a positional
argument, which cannot be misused:
bump_version.py release <current|major|minor|patch>
bump_version.py dev <major|minor|patch>
`dev` bumps the version to a new .dev0 version and commits it as
"Set version to vX" without creating a tag or touching the changelog. This
allows work on main to target a new minor/major version independently of a
release.
Because a .dev0 version no longer necessarily reserves the next patch
version, `release` now takes the target "current", which releases the
version reserved by the current .dev version (the usual case), whereas
major/minor/patch bump beyond it. The former special case of not
incrementing the patch version is thereby removed; `release patch` now
increments the patch version as its name suggests.
`release current` fails if the current version is not a development
version, in which case there is no reserved version to release.
Dominik Jain