'Best way to check for deprecated features before 15.0 Update [Gitlab]

I am a beginner SRE and I am tasked with figuring out if my company uses any features that are deprecated, and thus, going to be removed in the GitLab 15.0 Update.

The breaking changes are listed in this article here. These changes range across many different stages/resources, and I'm not sure where to begin.

In general, I just have no idea on good strategies for finding and identifying these deprecated resources within my company's codebase on GitLab, aside from searching code for keywords.

Does GitLab have any additional features that can help locate deprecated resources? Any help or advice would be appreciated.



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