Calculator-Plus

Automates release preparation for the Calculator Plus Android app. Use this skill whenever the user says the app is ready for a release, asks to prepare a release, wants to bump the version, or says anything like "let's release", "prepare v2.x", "update version for release", or "generate what's new". This skill handles everything: finding what changed since the last release, asking for the new version number, updating app/build.gradle, writing the CHANGELOG.md entry, and writing docs/whatsnew/whatsnew-en-GB.