Source changelog:
- Merged July security patch (android-12.1.0_r11)
- Switched to GameSpace, with all goods from old GamingMode kept
- Refactored in-game lock gesture feature
- Added Status Bar Ticker
- Added Music QS tile
- Added Google Lens into screenshot UI
- Added proximity check on wake toggle
- Added support to show battery level for AirPods series
- Added support to reset auto brightness adjustment
- Added more haptic feedback scenes for supported devices
- Relax slider haptic feedback strength
- Dropped slider haptic feedback for some devices
- Added OPPO Sans
- Allow receive / send any type of files from Bluetooth
- Fixed less boring heads up toggle
- Fixed 2-button navbar option missing
- Improved partial screenshot
- Improved pocket mode layout
- Moved extra dim feature into display settings
- Show 12L in settings and updated Easter Egg from PUI
- Updated default wallpaper
- Updated various system icons
- Updated various APNs
- Updated lawnchair to latest dev & Enabled dexpreopt
- Other cleanup and improvements

Device Changelog:

-Fixed instagram playback issue (https://imgur.com/a/7kMOO5R)
-Dropped unused radio properties
-Update blobs from LA.UM.9.12.r1-14200.02-SMxx50.QSSI12.0 
-Build 64 bit version of codec2 libs 
-init: Remove unused tcp property change actions 
-Add a script to update sha1sum from vendor commit
-Nuke non-existent oneplus gpudriver prop 
-Remove virtual framebuffer
-Props: Use HintManager for HWUI 
-Remove TARGET_ENABLE_MEDIADRM_64 
-Drop QTI camera device usage 
-Stop explicitely building netutils-wrapper-1.0 
-Enable all codec2 components with their normal ranks 
-Codec2: Set minQP to 1 for IMS VT Call 
-Enable Average-QP feedback from Encoder to ECO 
-Optimize art props
-Enable content based SF refresh rate setting 
-Props: Enable content based SF refresh rate setting
-Set Surfaceflinger refresh rate timers 
-Add display fps deferral
-Drop audio.a2dp.default 

Kernel Changelog: 

- Update build optimizations
- sched/fair: reset migration margins for balance
- kernel: set 50Hz tick rate
- Tweak cpuidle governor to enter deep C state faster
-  Use power efficient workingqueues
- Update bbr
- patches to wifi drivers
- disable oneplus configs
- Edit slmk values
- Use Linux random number generator
- Use hrtick
- turn off writeback
- remove process reclaim
- Zram entropy patches
- remove f2fs patches from anykernel
- don't allow s2idle to be used
- Scheduler patches 
- arm64: define pud_index for PGTABLE_LEVELS < 4
- rollback wakelock blocker to older version
- Overall idle drain, battery backup
- System latency has improved