4.2.1 has been released on 2023-06-01.
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9021b8d581304c5916a13ba3f52e66cc685f11ac "dev-python/wxpython: Bump to 4.2.1 Signed-off-by: Michał Górny <mgorny@gentoo.org>" please close