Hello @archos
I've looked into it and the version you have installed org.tt_rss.cloudronapp:3.0.0 was the final update and was a manual update (which you had to confirm manually) with the following release note:
[3.0.0]
* **IMPORTANT:** This package uses MySQL and upstream TinyTinyRSS has dropped support for MySQL. This is the last release of this package. We have published a new package which uses PostgreSQL. Please switch to the new package using the [migration guide](https://docs.cloudron.io/apps/tinytinyrss/#migrating-from-mysql-to-postgresql) .
Which looked like this:

So you must have not noticed this while applying the manual update back then (~28 April 2025)
I will think about how we can make this more noticeable to users in the future.
The following guide will delete all existing data







