According to the bower docs
Bower offers several ways to install packages:
# Using the dependencies listed in the current directory's bower.json bower install # Using a local or remote package bower install <package> # Using a specific version of a package bower install <package>#<version> # Using a different name and a specific version of a package bower install <name>=<package>#<version>
You can install two different versions of jQuery like so:
bower install jquery-legacy=jquery#1.10 jquery-modern=jquery#2
Or, if you prefer to set that up in a bower.json
"dependencies": {
"jquery-legacy": "jquery#1.10",
"jquery-modern": "jquery#2"
}