LibDialog will remove LibStub support with Greymoor API10031 update
 

LibDialog will remove LibStub support with the Greymoor API100031 update.
Please use the global variable "LibDialog" in your addons instead!

In your code change lines like this:
to this:

In your addon's txt manifest file:
Use the same ## OptionaDependsOn: LibDialog or ## DependsOn: LibDialog
You should remove any OptionalDependsOn or DependsOn: LibStub though if none of the libraries in your addon need it anymore.