Unhandled method textDocument/codeAction when developing LSP extension

I’m working on LSP extension and everything works good until I load extension. “Unhandled method textDocument/codeAction” appears in extension console. According to docs, Nova implements version 3.15 of LSP, and textDocument/codeAction is there since version 3.16 of LSP. I was asking for help on Twitter and looks like Nova supports version 3.17 actually but not in full range. Is an extension of LSP support in the plans or is there a method to get around this problem?