Not showing 8.15 version

I'm currently at the version of 8.10.4. When I click upgrade, I only see v8.14.3 the latest but not 8.15. Any idea guys?

Welcome!

Yeah. We discovered a bug which prevents to upgrade directly to 8.15 when running those versions.
So you need first to upgrade to 8.14.3 and then you will be able to see the 8.15 version.

Some info at Known issues | Elastic Observability [8.15] | Elastic

Thanks a lot sir