cmd/go: print information about version changes #33284
Description
Currently, the go command is quite chatty when it downloads and extracts module data, but it doesn't print the information that I really want to see - how resolved versions have changed.
For example, if I run go get $module, it may upgrade the version of the module, but it doesn't tell me what version it ended up with, or that other dependencies have changed version as a result.
Running go get $module@$version can downgrade dependencies too, which is silent and might break expectations of available features.
It would be great if the go command could show some information whenever the resolved module version has changed.