Moving Elastisearch low level client to stable

[loicmathieu]

Following a discussion on the quarkus-dev mailing list, I move the Elasticsearch low level client to stable.
The high level one remains preview untill we decide what to do with it ...

By the way, on the FAQ https://quarkus.io/faq/#extension-status there is no deprecated status maybe we need to add one.

[loicmathieu]

/cc @gsmet @yrodiere

[gsmet]

Yeah, we need to decide what to do with this one. I have no idea if we will upgrade it or not and if so what is the future of this.

[yrodiere]

Yeah, we need to decide what to do with this one. I have no idea if we will upgrade it or not and if so what is the future of this.

By "this one", which one do you mean?

The low-level client is definitely stable and has been open-source forever, with no change in sight: it's still ASL 2.0 in Elasticsearch 7.16 (5 versions after the infamous license changes).

The high-level client, well... it's whole different problem, I agree.

[loicmathieu]

For the moment we can upgrade to 7.10.2 but not to a higher one if we don't want to use Elastic licensed client.

I think we should wait to have an extension based on the new client to move past 7.10, I can try to find some hours before the end of the year to work on it, it'll be copy and paste :). Then we can deprecate the high level client extension.
And as Hibernate Search uses the rest client there should not be any issue.