@loke We have our own F-Droid repository containing the latest version. You can follow these steps to add it to your F-Droid client: https://newpipe.net/FAQ/tutorials/install-add-fdroid-repo/
There is problem with updating the version in the "normal" F-Droid repo. The app builds successfully, but the signing steps fails. This is caused by the F-Droid buildserver which fails to verify the generated APK to be identical to the one we share with them.
We tried different things to get the verification process to succeed, but that did not help.
@tobigr Thank you! It does work. That's a very annoying problem to have, and that explains why there wasn't any updates. I thought the project was simply unmaintained. Sorry about that.
That happens regularly. YouTube changes something and breaks NewPipe, NewPipe team has it fixed in a day or two. That just happens to NewPipe like every two months or so.
Every once in a while it also stops playing some videos. From my experience that's usually fixed by exporting your data, deleting all the app's data, importing the app's data, answer NO to importing settings, then it works normally again.