Prepare for 4.3.0 (#549)

Prepare for 4.2.0 (#540)

Prepare for 4.1.1 (#524)

Prepare for 4.1.0 (#512)

* Prepare for 4.1.0

It's possible the release isn't done on 3 March 2024
as the CHANGELOG proposes, but there shouldn't be
changes to the main branch after this pull request
either, so that should be Ok

* Update as per recent changes in the main branch

* Update as per recent changes in the main branch