This post originated from an RSS feed registered with Ruby Buzz by Eigen Class. Original Post: Last month, in Ruby 1.9... Feed Title: Eigenclass Feed URL: http://feeds.feedburner.com/eigenclass Feed Description: Ruby stuff --- trying to stay away from triviality. Latest Ruby Buzz Posts Latest Ruby Buzz Posts by Eigen Class Latest Posts From Eigenclass

We've had quite a few changes in Ruby 1.9 since Jan 15th., notably:

• new constant lookup rules (matz wonders why it took him over 10 year to figure them out)
• lots of goodies in Enumerable and its close friend Enumerator: #first(n), #group_by, #find_index, and automagic creation of Enumerators for Numeric#times, #downto, #upto, etc.
• new semantics for Module#const_defined?, #const_get and #method_defined?

As usual, instead of reading the whole changelist, you can get the "diff. of the textual diffs" via the following RSS feeds:

• unified diff
• summarized diff
• full-text plus change info (using the <ins> and <del> tags)

Differential feeds are available for all of eigenclass.org. Here's an explanation of differential modes and feed algebra.