Changelog #204

#15746 add diagnostics for string and byte string literal errors.

#15775 pick a better name for variables introduced by replace_is_some_with_if_let_some.

#15736 add incorrect case diagnostics for module names.

#15789 store binding mode independently for each instance of a binding.

#15786 fix client detectin for VS Code Insiders.

#15779 add command for only opening external docs and attempt to fix vscode-remote issue.

#15727 generate descriptors for all unstable features.

#15764 expand Emacs documentation.

#15769, #15770 really fix the metrics deploy key.

#15783 free up some disk space for auto-publish.