I have no idea what OP is on about. If we're talking firmware updates, I've yet to have software stop working after a system update or upgrade. There have been random crashes that 9/10 times clear up on their own after a couple of reboots, or needed to clear cached data and resumed working afterwards, but no show stoppers and certainly no software incompatibilities after the update was applied.
My most recent OS upgrade was on an LG phone with stock firmware (upgraded from Android 8 to 9). Flawless process, and this is on a phone that's gone several other updates and upgrades (biggest one was 8 to 8.1 as I recall) and has been in constant use for 2 years.
Been an Android user since the Google Nexus One, which I got on release day as I recall. Weirdly enough, it's the LED trackball I miss the most.
My most recent OS upgrade was on an LG phone with stock firmware (upgraded from Android 8 to 9). Flawless process, and this is on a phone that's gone several other updates and upgrades (biggest one was 8 to 8.1 as I recall) and has been in constant use for 2 years.
Been an Android user since the Google Nexus One, which I got on release day as I recall. Weirdly enough, it's the LED trackball I miss the most.