Support Policy for the latest version of OS, DB and AP Servers
According to the topic (When is the end of support of PRPC 6.1 SP2 ?), Pega Platform doesn't have the end date for support of older version. Is there any policy to supported platform for older version? What version will be tested on the latest version of OS, DB, JVM and AP server?
For example, the latest Platform Support Guide (as of April 12th, 2018), PostgreSQL 9.6.x is supportd by Pega 7.3 and 7.3.1, but not supported by 7.2.2 or earlier version.
Is there any policy which version of Pega Platform support for which version of servers/middlewares?