These release notes for Ubuntu 18.04 LTS (Bionic Beaver) provide an overview of the release and document the known issues with Ubuntu 18.04 LTS and its flavors
The ‘main’ archive of Ubuntu 18.04 LTS will be supported for 5 years until April 2023. Ubuntu 18.04 LTS will be supported for 5 years for Ubuntu Desktop, Ubuntu Server, and Ubuntu Core. Ubuntu Studio 18.04 will be supported for 9 months. All other flavors will be supported for 3 years.
The release notes for the official flavors can be found at the following links:
The problem is, over 800 packages are currently stuck in the bionic-proposed repo. In comparison, there were only 110 packages waiting in the proposed repo at the end of Ubuntu 17.10 (Artful Aardvark)’s development cycle
Video acceleration, audio, networking and Bluetooth improvements
“In Pulse Audio we’ve dropped some more patches for Android support (from Ubuntu Touch) bringing us more inline with upstream.