Starting with Version B4A 6.50, if you compile with 6.50 and already have an older app, you need to first uninstall the older version app and then install the new one with 6.50 version. You only do it once to that older app.
Starting with Version B4A 6.50, if you compile with 6.50 and already have an older app, you need to first uninstall the older version app and then install the new one with 6.50 version. You only do it once to that older app.
If the tables are in File.DirRootExternal, they are safe, but if in DefaultExternal or Internal, you need to make copies of the database first, otherwise, they are deleted when you uninstall the old one.