I want to know what the \"~>\" is used for,cause I find they are the same below:
pod \'AFNetworking\',\'~> 2.0.3\' pod \'AFNetworking\',\'2.0.3\'
~> 6.0 will get you the latest version before the next version which is 7.0 but not including the 7.0 version.
~> 6.0
7.0
~> 6.0.0 will get you the latest version before the next version which is 6.1.0 but not including the 6.1.0 version.
~> 6.0.0
6.1.0