Leap 15.4 is the current release. For details check the packaging information and the Roadmap. openSUSE Leap 15.4 offers professional users, entrepreneurs and ISVs (Independent Software Vendors) updated support for modern hardware with improved YaST functionality and an improved installer. Leap 15.4 was released to the general public on June 09th, 2022.
Leap 15.4 is based on the Portal:Jump concept, where we combine openSUSE Backports with binaries from SUSE Linux Enterprise.