Kunos Simulazioni has confirmed that Assetto Corsa Competizione
will no longer receive major feature updates, as development focus
shifts toward the upcoming Assetto Corsa EVO.
Future ACC updates will mainly include liveries, minor fixes,
and maintenance updates, while the next-generation platform
moves into active development.
ACC remains fully supported for online racing, leagues,
and competitive communities.
Source:
https://traxion.gg/assetto-corsa-competizione-to-receive-new-liveries-but-no-more-significant-updates/