By 2021, budget cuts at BBC4 had resulted in the channel moving towards being based mostly around archive programming. Even some continuity announcements have become generic, with the same recordings used week after week.
Despite this, BBC4 was treated to a few new idents as part of the refresh of the BBC's on-screen presentation on 20th October 2021. They continue to conform to the 'four perspectives' concept in use since 2005, and several of the existing idents continue alongside, including three originally created for the channel's Japan Season four years earlier.
The channel also continues to use themed idents for certain types of programming - these variants were all newly introduced in autumn 2021:
These idents are used mainly for Friday night music and Saturday night drama respectively. Another ident, which is used mainly for astronomy programmes, will be added here soon.