Maintenance compatibility with both Ruby 1.8 and Ruby 1.9, from the release notes.

维护Ruby 1.8、Ruby 1.9的兼容性，发布说明如是说。

youdao

Maintenance compatibility with both Ruby 1.8 and Ruby 1.9, from the release notes.

维护Ruby 1.8、Ruby 1.9的兼容性，发布说明如是说。

youdao