Geode releases are driven by the community. A release should first be proposed on the dev list, then a PMC member must volunteer as Release Manager. See Backporting Tips if you'd like to include a major/critical fix in a release after the support branch has been cut.
Upcoming Releases
Here's what could be next.None, unless someone volunteers for one or more of the following:
Apache Geode 1.16.0
Release Manager:
...
Branch: support/1.13
Label: blocks-1.13.9
Status: passive (backporting allowed, but a Release Manager has not yet volunteered)
Apache Geode 1.12.10
Release Manager:
Branch: support/1.12
Label: blocks-1.12.10
Status: passive (backporting allowed, but a Release Manager has not yet volunteered)
...