[asulwer]

Closes #28

Every release used to start with the same install text, and GitHub's generated list mixed in PRs that don't change the app. Now the notes look like this (dry run for the current release):

## What's new
- Publish to Google Play on every merge (#25)

## Install
**[Get it on Google Play](https://play.google.com/store/apps/details?id=com.acclscompany.callguard)**, or download the `.apk` below and open it (Android 10 or later).
To update, install the new `.apk` over the old one: your patterns and call log are kept. The Play version
and the `.apk` are signed with the same key, so either can update the other.

Build 3612911 · [All changes since v1.0.261021](https://github.com/asulwer/CallGuard/compare/v1.0.261021...v1.0.261113)

How

• .github/scripts/changelog.ps1 lists the PRs merged between two refs whose files include app files, oldest first, as Title (#n).
  • App files means the same list as build-test's Needs a build?, minus that workflow.
  • It reads both merge commits and squash merges.
  • Dependabot updates become one "Updated libraries" line.
• release.yml:
  • Checks out full history and tags.
  • A new Write release notes step finds the previous release (any version other than this one, so a same-day rebuild still lists everything since the day before) and runs the script.
  • The first release says "First release of Call Guard." A release with no app PRs says "Build and maintenance updates."
  • GitHub's --generate-notes is dropped.
  • Play's "What's new" is the same list without the PR numbers, cut to Play's 500-character limit.

Checked

• Ran the script against the existing tags:
  • v1.0.261021: Repaint the whole screen whenever the app comes back into view #12, Edit a pattern's note #16, Show where patterns and calls are from #17, Show which copy of a contact let a call through #18
  • v1.0.261113: Publish to Google Play on every merge #25
• Ran the notes step locally; the output is above.

Release only when the app changes. The release workflow now uses a paths: filter: CallGuard/, CallGuard.Core/, Directory.Packages.props, Directory.Build.props/.targets and global.json. Before, it released on every push except docs. Changes to tests, workflows or repository settings no longer release. The changelog script uses the same list, and a comment in each file says to keep them in step. To release after changing only the workflow, use Run workflow.

Merging this PR therefore does not build a release. The new notes appear on the next release that changes the app.

🤖 Generated with Claude Code