I know Elasticsearch is required to run Bitbucket Data Center and that Support for Elasticsearch 2.3 ended with Bitbucket 5.7.
We have an internal Elasticsearch cluster that is still on v2.4 for a bunch of reasons. It's on the roadmap to upgrade, but it may be a while and we need to get Bitbucket Data Center in before that's likely to happen.
So, I thought about running Bitbucket Data Center 5.8 against our Elasticsearch 2.4 cluster until we get the cluster upgraded.
I know it's not supported, but does that mean it won't even work, or just that we're on our own until we upgrade our Elasticsearch cluster?
Has anyone else done this, or seen evidence that it will or won't work?