This sum-up list is intended for non-experienced / simple, everyday users, that consider to try the OS.
From a simple user point of view, like myself.
Coming from 4.1.0.23 (Xperia 10ii):
→ Libraries cache: Documents, Music (sound) and Images libraries were not fully synched, and apps could not have access to your content. Apps like SeaPrint could not have access to your docs, Gallery app would not show your camera images, you couldnt even change your ringtones because Sailfish could not find any music, etc.
-This bug is completely gone
Coming from 4.0.1.48 (Xperia 10 Plus)
→ 3.5mm audio output volume too low:
-Bug fixed, no workarounds required anymore.
→ BT audio volume too low:
-Bug is still there, at least for some BT devices, like my Huawei Freebuds 3.
→ Battery drain (up to 15% overnight):
-Fixed, battery drain on standby (and, of course, with the same conditions) is within logical values (2-3% overnight)
→ Random restarts (about 1 per 2 days):
-Haven’t noticed any restarts at all.
→ GPS takes 2-3 minutes to get some good signal, even in open space:
-Problem solved with downloadable Jolla positioning data from the store
→ 3G/4G mobile data was difficult to connect (Greece/Cosmote): Whenever I was out and in need of mobile data, it always took more than 1 minute to connect after switching ON (tried all settings to no avail)
-Issue fixed now, connecting in a blink of an eye
→ Ejecting a USB OTG device restarts the phone:
-Bug fixed