We have just released Atlassian Connect Spring Boot versions 4.0.4 and 3.0.8
These add support for the new entitlement identifiers which will be available in install payloads
4.0.4 also removes setting of the security context strategy to MODE_INHERITABLETHREADLOCAL. This was originally done in 4.0.3 but that change missed an additional location where the strategy was set.
Please also recall the upcoming end-of-life of Spring Boot 2 as noted in Atlassian developer changelog
From November 18, 2023 there will be no further Spring Boot 2 based releases.