I have the released version running really well to automate our user cancellation process. Our users have to log in at least once a year to retain an account; so I have the delay between reminders set at 120 days, and auto delete set to 30 days after the 3rd reminder - it works a treat.
I will soon have to update phpBB to version 3.2.7 (currently 3.2.5).
Normally I disable all extensions when updating, then re-enable after phpBB has been updated. Question is if I do this will this affect the data held by the extension ? Obviously if that was the case it would cause problems with our user cancellation process.
If IUM is updated in the future this might also cause issues unless the data/data structures remain the same, or are updated as part of the IUM update process.
All the best