Spring SDK compatibility with Spring Boot versions

[falko]

My current prospect is forced to use Spring Boot 3.0.13 with Camunda 8.6.

The original Spring Zeebe project had an extra column in its compatibility matrix stating compatibility with any Spring Boot 3.x.x version.

Our current documentation only shows a "bundled" version:

camunda-docs/versioned_docs/version-8.6/apis-tools/spring-zeebe-sdk/getting-started.md

Lines 11 to 14 in c082699

	| Zeebe Spring SDK version | JDK | Camunda version | Bundled Spring Boot version |
	| ------------------------ | ---- | --------------- | --------------------------- |
	| 8.5.x | ≥ 17 | 8.5.x | 3.2.x |
	| 8.6.x | ≥ 17 | 8.6.x | 3.3.x |

Did we drop the compatibility with other Spring Boot 3.x.x versions or is this just undocumented?

[falko]

Depending on the outcome, this page may also have be updated: https://docs.camunda.io/docs/reference/supported-environments/#clients

[akeller]

@aleksander-dytko @megglos can you triage this?

[aleksander-dytko]

@falko the SpringBoot 3.0 is out of OSS support since 2023-12-31 and out of Enterprise support since end of last year. Why do they want/need to use this version?

In my understanding, Spring Boot should be backwards compatible, meaning we support versions until x.y.z. @megglos could you validate this assumption?

Heads-up: with 8.7, we will support Spring Boot 3.4

[akeller]

@aleksander-dytko based on your comment above, we need to update the Clients section of the Supported Environment page. I will PR and add you as a reviewer.