Enjoy your favorite videos and channels without ADS and with Background Play on this
Features

 No root needed to install
No need to uninstall official , can install as a secondary .
Whole new ad blacking method
Simplified mod to enable background playback
Enable/Disable background playback via Settings
Force VP9 Codec option for better video quality and lesser bandwidth usage Settings -IYTBP Settings
Override Max Resolution Limit Settings -IYTBP Settings
Preferred Video Quality switch WiFi/Data Settings - IYTBP Settings)
Enable/Disable Info Cards on videos Settings - IYTBP Settings
Enable/Disable Suggestions Cards on videos Settings - IYTBP Settings
Enable/Disable channel branding watermark on videos Settings  IYTBP Settings
Pinch to zoom enabled on all devices
With the help of modded microG, Login & Casting works with all features (no ads on external devices not guaranteed)
How to install ? 

 Download the latest  Vanced version
On your Android device, go to settings  security  allow unknown sources.
Find downloaded APK on your phone and install it.
Done. Enjoy!
How to use picture-in-picture with  on Android O Dev Preview 2
Launch the  application
Find a video to watch and tap on it so that it is playing
Simply select the home button and the video player should shrink down in size
With the smaller player, you can move it around your display, play and pause the video, skip to the next video if you’re viewing a  playlist, or tap on the headphones icon to have the video play in the background
At any time, you can select the smaller player and tap on the center icon to reopen the  application
When you are done watching it, simply move the player to the bottom of the display and it will close