Blu Spark kernel for Oneplus 5(T) gets an update
https://forum.xda-developers.com/oneplus-5/development/kernel-t3651933/post74823923

Franco Kernel for Oneplus 5 gets an update
https://forum.xda-developers.com/oneplus-5/development/kernel-francokernel-r1-8th-aug-t3653500/post74826669

GZR Gapps for Android 8.1 are now available

Source: http://bit.ly/2C1Luzc

Download
• Arm64: http://bit.ly/2nZswaq
• Arm: http://bit.ly/2ACFikR

OxygenOS 4.7.5 for the Oneplus 5T has started rolling out

Download:
• Full zip (Official) - https://goo.gl/nybNmw
• Full zip (AFH) - https://goo.gl/jSXHqP
• Incremental (4.7.4 —> 4.7.5) - https://goo.gl/uqvY33

Changelog:
• General bug fixes

OpenBeta 2 for OnePlus 5 is out

Source: http://bit.ly/2o8oYTg

Download:
—> Full Zip (Official): http://bit.ly/2BoYp1E
—> Full Zip (GDrive): http://bit.ly/2AqDHum
—> Full Zip (Mega): http://bit.ly/2AsxU7M
—> Full Zip (AFH): http://bit.ly/2yEMlni

Changelog:
【Launcher】
• Fixed widget issues
• Fixed shortcut issues

【Camera】
• UI Improvements

【Files Manager】
• Added f4v format in video category
• Speed improvements while deleting massive files.

【System】
• Improvements to Reading Mode
• Improvements in vibration
• Improvements in Bluetooth audio
• Fixed Parallel apps bugs
• Fixed reboot issue when using Picture in Picture
• Updated Android security patch to November
• General bug fixes and stability improvements.

Flash Kernel updated for OpenBeta 2 (OP5)

Source: http://bit.ly/2CmObMC

Changelog:
• Update for Open Beta 2 (OOS only)
• Update to CAF tag LA.UM.6.4.r1-05400-8x98.0
• Update WireGuard
• Update AnyKernel2 backend

OpenGapps unofficial for Android 8.1

Download: http://bit.ly/2AAGLnL

Only for ARM64

xXx NoLimits updated for OP5

Download: http://bit.ly/2CKBCuO

Changelog:
• Oreo: http://bit.ly/2BogoTk
• Nougat: http://bit.ly/2ByLv10

Credits: @obol2

Derp kernel for OP3 and 3T gets an update
https://forum.xda-developers.com/showpost.php?p=74880964&postcount=92

Resurrection Remix official update for OP3 and 3T
https://forum.xda-developers.com/showpost.php?p=74880952&postcount=12199

Derp kernel for OP3 and OP3T gets a new update
https://forum.xda-developers.com/showpost.php?p=74917756&postcount=95

LOS 8.1 is in works for OnePlus 2
Source - https://forum.xda-developers.com/showpost.php?p=74917941&postcount=2993

NitrogenOS updated for OnePlus 3/T

• Download: http://bit.ly/2BSbuRj
• Changelog: http://bit.ly/2CQn5wX

If you would like to follow future updates of the ROM: @NitrogenOSupdateOp3e3T

AOSP Extended Oreo Build is in works for OP3(T)
Source - https://forum.xda-developers.com/showpost.php?p=74920225&postcount=1656

New LOS 15.1 build teaser up for OP3(3T)
https://forum.xda-developers.com/showpost.php?p=74920618&postcount=2055

Thunder Kernel for OnePlus One updated

• Source: http://bit.ly/2BMr8v3
• Download (BBuild): https://goo.gl/RKzu2v
• Download (AFH): https://goo.gl/Cczidd

Aosp Oreo rom for OnePlus One updated

• Source: http://bit.ly/2zc68uH
• Download (BBuild): http://bit.ly/2Dqcv0I
• Download (AFH): http://bit.ly/2BYeg7H

Changelog (Beta 4):
—> Update to tag android-8.1.0_r1
—> Get rid of obsolete camera code
—> Upsteam AOSP changes such as gallery, launcher, etc
—> Add back demo mode
—> Add Pixel Navigation bar with animation
—> Introduce theme related changes (see below)
—> Use new shutdown UI for advanced reboot
Tap for recovery, longpress for bootloader
—> Fix lockscreen issues
—> Fix some issues with media
—> Move binaries to vendor
—> Add AptX audio support
—> Fix V4A compatibility
—> Major updates to sepolicy (Thanks to @deadlyindian, we're almost enforcing now)
—> Probably a few more things I missed