STM 8.0.1 Release notes:

These release notes are updated with every new official release.

STM 7.3.1 Release notes:

Support continues for STM 7.3.1 but there is no new development. Ubuntu 18.04 LTS EOL was 31/05/2023 and we are not responsible for any issues that may occur. We recommend moving over to Ubuntu 22.04 and STM 8.0.1