Lock/Freeze a package to a specific version with optional note

[chacham2]

A couple of times i have used a NuGet package that i do not want to upgrade, because of a breaking change in the update, leading me to leave a note somewhere about not upgrading that package. The problem is, when updating NuGet packages, people might not see those notes, and end up upgrading anyway, leading to a break in the program.

It might be nice to have a feature within the UI to lock/freeze a package to a specific version with an optional note where an explanation as to why this is the case and conditions to be met before it would be wise to upgrade it. The freeze would mean the package would not be updated unless unfrozen first.