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* Ensure Hash#except is allowed on a frozen hash. References #382Mislav Marohnić2008-09-131-1/+1
* Merge with docrails.Pratik Naik2008-07-161-1/+1
* Performance: speed up Hash#except. [#382 state:resolved]Grant Hollingworth2008-06-111-3/+4
* Added Hash#except which is the inverse of Hash#slice -- return the hash excep...David Heinemeier Hansson2007-07-091-0/+24