2011/12/20 VùÕ Ondruch <v.ondruch / gmail.com>:
> I was afraid that you will say that. I hope that Ruby 1.9.3 will not have
> the same destiny as passenger [1], whose review takes already 3 years
> because of bundled boost with some modifications. Is there any intention to
> submit Ruby bugfixes or specific modifications to upstream?

Ruby 1.9 changes Oniguruma on following points:
* add checks for broken strings
  Oniguruma requires that its given string is valid.
  But Ruby needs to handle such strings.
  Ruby requested original Oniguruma to add such checks before
  but kosako-san rejected it.
* add more encodings
* update Unicode support
* fix some bugs
* add additional warnings (duplicated characters in character class)

First one is critical and can't be merged.

Additional to say, original Oniguruma seems dead.
I sent some patches to fix bugs, but no response.

-- 
NARUSE, Yui naruse / airemix.jp>