Hi everyone,
I'd like to announce the "new" LSP plugin (discussed at various places for about a year so it's really old news now):
https://github.com/techee/geany-lsp
I believe the plugin is quite stable and reasonably bug-free but since it's new and there are many LSP servers in the wild, some problems may pop up. If you run into issues or have some suggestions, please don't hesitate to create a new bug report in the above repository.
Cheers,
Jiri