Updates

Where the app came from decides how it is updated.

• Once a day, when it opens, the app asks GitHub whether there is a newer release. That is the only connection it ever makes.
• A newer version shows on the start screen, the one with Open a PDF. Tap Update: it is downloaded from GitHub, checked against the signature of the app you have, and installed.
• The first time, Android asks whether the app may install updates. Allow it, then tap Update again.
• Check for updates on the start screen looks now instead of waiting a day.

• The Google Play build has no network permission and no update button. Google Play updates it.

• On the start screen: Version, under the button. What changed in each version is in the release notes on GitHub.