WordPress minor release version 6.3.1 features 4 bug fixes in Core and 6 bug fixes for the block editor. You can review a summary of the maintenance updates in this release by reading the Release Candidate announcement.
WordPress 6.3.1 is a short-cycle release. The next major release will be version 6.4 planned for November 2023.
CU*Answers Web Services will automatically be updating all client sites to the new version. This will happen during our normal weekly update processes.