[macosxnerd101]

Quote

With Ruby 2.0 set to be released on February 24th, exactly on the 20th anniversary of Ruby’s first debut, I decided to write this article to give you a quick rundown of some of the most interesting changes. And if you would like to experiment with this version before the official release, you can do so by following the instructions in this article.
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The changes introduced in 2.0 are pretty extensive, but in this article I will be focusing mainly on the following:

Refinements
Keyword Arguments
Module#prepend
Enumerable#lazy
Language Changes

http://rubysource.co...ok-at-ruby-2-0/

[xclite]

Lazy enumerable is nice. Keyword arguments are ok, though I rarely use them or just pass around a hash. Nice to get rid of the hash

[Sergio Tapia]

I kind of like the hash... it's committed to muscle memory at this point for me.

[Lemur]

Hash is a habit by now, but I'll have to check into this more. Hopefully it has graceful degradation and compatability for enterprise editions and the like.

Can't say I knew the date on this one though