Chromecast With Google TV Gets a Decent-Sized Update

Labeled as Google TV build QTS1.210311.036, the update arrives at 158MB with an October 2021 security patch. It also brings storage optimizations and management improvements, as well as improvements to help with HDR HLG-to-HDR10, Dolby Vision playback, and DRM video decoding. There are other unspecified bug fixes and performance tweaks too.

Source: Chromecast With Google TV Gets a Decent-Sized Update