[Sony Xperia T, TL, TX, V] AdrianDC:
Changes log

21/12 : Official nightly migration over Android 8.1.0_r52 December

14/08 : Upgrade stable release on Android 8.1.0_r43 August

>>> Multiple Kernel CVE patches and improvements

>>> New settings for the status bar's clock (position, AM/PM)

>>> Black lights selection resolved (blue light glitch)

>>> Backuptool securities re-enabled (always update GApps for Oreo upgrades)

>>> Media volume now has 25 steps instead of 15, call volume 7 instead of 5

>>> Improvements to trigger the bootanimation earlier on boot

12/07 : Upgrade stable release on Android 8.1.0_r36 July

>>> Fully black mode implemented for Night mode

>>> New carbon black style added for Light mode

>>> Vendor security patch level added to device informations

>>> Trust warnings management improved with toggles

>>> Platform and RAM added to the About / Model & hardware dialog

25/06 : Upgrade stable release on Android 8.1.0_r30 June

>>> Introduced LineageOS Trust features

>>> Status bar icons tints resolved: Battery percentage, VPN, network indicators

>>> AOSP TwilightService reverted for LiveDisplay to prevent GPS always on

>>> LineageOS Recovery new install/progress animation

27/05 : Update stable release on Android 8.1.0_r26 May

>>> CellularTile now has a detail view for Mobile Data

>>> Dialer / Settings / Sounds and vibration settings improvements:

----- Do Not Disturb during calls option added

>>> Snap GPS location feature fixed

>>> Trebuchet Launcher improvements:

----- Predictive apps switch between day / night / headphones

>>> Merged fixes for LineageOS properties and backuptool barriers

12/05 : Upgrade stable release on Android 8.1.0_r26 May

>>> LineageOS build structure changes / improvements

>>> Work in progress fixes around LineageOS properties and backuptool barriers

>>> Minor fix about the offline charger LED battery indicator

05/05 : Update stable release on Android 8.1.0_r20 April

>>> My implementation of FBNotifier backlight in the LEDs kernel driver

----- Resolves backlight always on issues in offline charger

----- Proper low-level solution avoiding deprecated brightness controls

>>> Offline charger boot will reboot the device rather than direct boot

----- Restored the default AOSP behaviour for better support

----- Improves usability for MultiROM users (access to secondary ROMs)

>>> Offline charger LED battery indicator brought back

29/04 : Update stable release on Android 8.1.0_r20 April

>>> Evolutions from frameworks/av to support legacy HAL1 Camcorder properly

----- Final solution found with Milos Ratkovic

----- Camcorder running fine on 720p and 1080p

12/04 : Upgrade stable release on Android 8.1.0_r20 April

>>> Common ROM sources updates

>>> Minor device sources changes

>>> Recent kernel CVEs updates thanks to Roman Yarullin

31/03 : Upgrade stable release on Android 8.1.0_r15 March

>>> Evolutions from frameworks/av to support legacy HAL1 Camcorder

>>> Camcorder running fine on 720p YUV (restricted for now)

>>> DocumentsUI (Files) showing internal storage by default

>>> Logcat's Diag_Lib spam resolved and silenced

>>> Sources improvements and cleanups related to AOSP P-DP1

>>> Kernel binder 64 bits API

>>> Lineage HighTouchSensitivity option brought back

03/03 : Initial LineageOS 15.1 public XDA release

>>> Status equal to equivalent AOSP 8.1 releases

18/02 : Initial LineageOS 15.1 test users release

>>> Status equal to equivalent AOSP 8.1 releases

2017: Initial LineageOS 15.0 ports, internal bringup

>>> Kept private in favour of the AOSP 8.0 / 8.1 releases

About Sony Blue devices

You can cross-reference with Huashan: http://xdaforums.com/-/-t3758221

I work on both platforms in parallel as they are now equal in terms of functionality and stability