gopls is currently in alpha, so it is not stable.
gopls is currently under active development by the Go team. The code is in the x/tools repository, in golang.org/x/tools/internal/lsp and golang.org/x/tools/gopls.
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- Editing multiple modules in one editor window: #32394
- Type checking does not work in cgo packages: #35721
- Does not work with build tags: #29202
- Find references and rename only work in a single package: #32877