jQuery 2.0 and NuGet

Recently jQuery 2.0 was released to the world. Yay! It has many breaking changes. Boo! But they are going to keep the 1.x branch updated for the foreseeable future. Yay! NuGet however, does not currently have UI to selectively update only using the 1.x branch of jQuery. Boo!

Enter NuGet version contraints. Simply open up your packages.config, and find the following line:

<package id="jQuery" version="1.9.1" targetFramework="net45" />

Your targetFramework attribute may be different, but that doesn’t matter. What you need to do is edit that line to add the allowedVersions parameter:

<package id="jQuery" version="1.9.1" targetFramework="net45" allowedVersions="[1,2)" />

This tells NuGet that you want to constrain the jQuery package to versions 1 <= x < 2. In fact, if you use Update-Package, you will get a friendly line in the package manager console that reads:

Applying constraint 'jQuery (≥ 1.0 && < 2.0)' defined in packages.config.

Yay! Hopefully the UI for NuGet is updated soon to better support parallel release branches.

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