Differences between Ruby 1.8 and 1.9

Ruby
1

I thought of giving 1.9 a try and from what I saw by googling there
are a number of differences between the two branches in matters of
syntax and semantics. Is there a list of them somewhere which I can
dig into ? Thank you.

2

http://eigenclass.org/hiki.rb?Changes+in+Ruby+1.9