GrapheneOS GmsCompatConfig (sandboxed Google Play compatibility layer configuration) version 44 released: https://github.com/GrapheneOS/platform_packages_apps_GmsCompat/releases/tag/config-44. See the linked release notes for a summary of the improvements over the previous release and a link to the full changelog.
omark What does the max supported version mean? Sometimes play store tries to update itself and services, and it says it's recommended to allow this. Should I stop allowing to do that?
matchboxbananasynergy omark No, it's perfectly fine to allow that. The max supported versions defined by GmsCompatConfig define exactly that. The max version that Play Store can update itself and Play Services to.