Spring Need Spring Framwork version as per Compatiblility Matrix

Hi Team, Have one requirement to upgrade Spring Framwork version to compatible with Spring Boot 2.x

But here is my system's software/tool current version. 1. Spring Framework 4.1.5.RELEASE 2. Spring Boot 1.3.8.RELEASE 3. Oracle Java 8 4. IBM WebSphere 8.5.5.9

As part of future Roadmap we need to get rid of WebSphere & Use OpenJDK17 along with Spring Boot 2.x Can anyone suggest a compatible Spring Framework version that can work for Spring Boot 2.x + OpenJDK 17 + IBM Webspehere 8.5.5.9

Comment From: bclozel

Java 17 is supported with the latest Spring Boot 2.5.x and 2.6.x. You should look at the support timeline for Spring Boot and choose there accordingly. I'm afraid Spring Framework 5.x requires Servlet 3.1+, so Websphere 9+.

Comment From: pardhukancharla

Thanks for response @bclozel. Can you suggest Higher version of Spring Framework(> 4.1.5.RELEASE) which suits WAS 8.5.5.9 & Spring Boot 2.x?

Comment From: bclozel

That version doesn't exist I'm afraid. Only 5.x Framework versions are currently supported and Spring Boot is depending on those. See the list of requirements here; you'll need to update your deployment stack.