Clarifications on breaking changes due to the latest changes in error responses

[rartych]

Problem description

In section 5.4 of API Design Guidelines the following case is listed as an example for breaking change:

Modifying or adding new responses to existing operations. For example: creating a resource can return a 412 response code.

Changes introduced in PRs: #324 #329 #351 are renaming error codes and suggest removing some error definitions from API specifications (50x).

Expected action
Global guidance for API versioning in meta-release Spring24 especially the stable ones (v1.0) and without other major changes - is needed.
Updating section 5.4 of API Design Guidelines can be considered based on decision above..

Additional context

Analysis of Commonalities 0.5.0-alpha.1 changes