[sunqiang]

Python 2 to Python 3 is a big jump once in a lifetime. what about ruby 1.9 to ruby 2.0?

[jshen]

ruby 2.0 will likely be just as easy as 1.8 to 1.9, if not easier.

[sunqiang]

so, it's not as easy as python 2.x to 2.(x+1) and python 3.x to 3.(x+1). will every version update of Ruby will suffer as mush as Ruby 1.8 to 1.9?