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How to revert to an earlier version of an app?
(lemmy.dbzer0.com)
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
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If you go to the repository settings there's an option to enable archived apps and outdated versions. Then select the f-droid archive repo for that app.
Often these are disabled for a reason, so you might want to check if there's any important bug fixes since then.