Revert changelog updates for the abandoned 12.8.3 release
Release 12.8.3 was abandoned due to a tagging error, this adds a placeholder for 12.8.3 so 12.8.4 can be tagged.
Edited by John Jarvis
Release 12.8.3 was abandoned due to a tagging error, this adds a placeholder for 12.8.3 so 12.8.4 can be tagged.