End of Maintenance of Activiti v5.23.0

[Red_0575]

Hello, 

Can you tell me the end of maintenance date for Activiti version 5.23.0, please?

<dependency>
   <groupId>org.activiti</groupId>
   <artifactId>activiti-spring-boot-starter-basic</artifactId>
   <version>5.23.0</version>
</dependency>

& what version (compatible with java 11) do you recommend to upgrade (in case of end of support for version 5.23.0), please ?

Any help or guidance would be appreciated. Thanks !