-開発済-STABLE

A usable current release exists.

STABLE means development has reached a state accepted for current use.
It does NOT mean permanently finished, frozen, or no longer subject to development.

A STABLE item may be revised whenever specifications, environment, requirements,
or implementation change, or when defects or improvements are found.

Revisions should create a new version while preserving version history as required.

Interpret STABLE similarly to released software:
usable as the current release, while future updates, fixes, and improvements remain expected.