[Nexus 6P Android Development] SKiLLa XP:
I just swapped Mobile providers (and thus SIMs) using the latest (2018-03-11) version of the ROM whilst keeping my current phonenumber and it worked perfectly, even with a PIN setup on both the SIM and phone.

Issues I did ran into (some already mentioned):

LiveDisplay is not working (it worked fine in the 2018 February build; 2018-02-20 ?, which I actually dirty flashed, including when using the sigmaKernel instead of stock-kernel ):

- The Quicktile doesn't do anything

- In the Settings tab, there are now 5 settings instead of the 3 On-Off-Automatic, but only Off and Outdoors actually work; selecting the others results in 'Off'-behaviour.

The popup-menu shows the correct setting, but afterwards the state stays unchanged in the menu (nor does the screen display change).

The Advanced Bluetooth Settings (Codec, Protocol Version, Bitrate, Quality, etc.) seem to suffer the same issue; you can change their settings in the popup menu,

but they don't seem to really stick or change anything.

There is no 'Updates' button check anymore in the Settings | System anymore, the subtext still says 'Updates' under the 'System' button, but it's simply not there.

There is a background process active called Update though, albeit it never showed any update to me over the last 2 months ...

You need to Flash the 'micro' or bigger OpenGapps package if you want the Google Clock+Alarm and screen-widget to function properly, you can't install it from the PlayStore later. When flashing a smaller package, you do get a clock screen-widget, but there is no Alarm or Timer, etc. Perhaps it's worth adding that to the opening post ?

RR 5.7.x had a 'System/Work Profiles' QS tile which I really loved. It was removed (or at least it stopped working for me) in the most recent 5.x builds and I really really miss it in this 6.x version as well. Tried all kinds of hacks and third-party plugins in the past, but I never got the QS tile back. Are there plans to bring that QS tile back to RR 6 ? Having those profiles only available 3 clicks away from the homescreen makes them way less useful...

The WiFi Hotspot feature doesn't have an (optional) auto-turnoff-timeout feature anymore, which I really miss. I forgot to turn it off twice recently, draining my battery unnecessarily and potentially resulting in hefty mobile data usage (which isn't an big issue for me, but ymmv) because the laptop kept using it in the background instead of the regular - but filtered - WiFi (yes, my bad !).

Some menu subtexts in the RR 'various customization;' (kinda like the Updates) mention settings or tweaks that are actually not yet available in that submenu.

Things that work just fine for me (both March and February builds) :

Unlocking the Lockscreen with PIN or fingerprint seems to work just fine a 100% of the time for me.

Changing SIMs without having to reset the security codes.

Powersaving navbar-color works fine for me (using Black/Dark Theme)

Batterylife when playing music is ok, even with the Ambient Visualisation in the navbar and on the homescreen enabled and when streaming to BL (and from 4G).

Conclusion: RR is still my favourite ROM, have been running it since my HTC M7 back in the day and nothing has come close since :)