Should I upgrade from version 9.00 to 11.10?

Hi folks,

I received a Fenix 6x Pro today (bought second hand), and it currently has the 9.00 firmware.  I see that version 11.10 is sitting on the watch waiting for me to install.

Question is do I do it?

I've been looking around the forum to try to understand if the latest version adds more problems than it fixes or not, but I can't tell. The decision would be easier if I could find a repository of old versions, to allow me to rollback if I needed to, but I can't find one.

Be great to hear thoughts from other users on which of the two software versions has the least issues, or pointers towards a list of bugs per software version, if that exists.

Many thanks