v1 — choose this for PHP 8.2–8.4 projects, production deployments, or when you don't need the newest Bitrix24 API methods. v3 — choose this for PHP 8.4+ projects that need access to new REST API ...

If you want to interact with Jira cloud instead of On-Premise(Server, Data Center), check out this repository. From version >= 5.0.0 of this repository this project is only using V2 of the Jira rest ...