This version focused primarily on stability and minor package updates rather than large-scale feature additions:
Updated support for Android build-tools and iOS plugin handling. System Requirements for 2020.3 LTS Unity download archive unity 2020.3.3f1 download
Unity 2020.3.3f1 includes several stability fixes and improvements over the initial 2020 LTS release: This version focused primarily on stability and minor
: Addressed an issue where X11 (the windowing system) was failing to respond, converting it from a fatal error to a logged warning for smoother development on Linux platforms. unity 2020.3.3f1 download