From Code::Blocks

Since the 18 February 2008 Code::Blocks uses a new version numbering scheme. The goals listed in the roadmap though, may still be valid.

Taken from main page:

After a discussion recently held between the core team members, it was decided to change the version numbering scheme used for Code::Blocks. The new scheme will follow the "Year.Month" style, also known as the "Ubuntu version scheme". This means that our next release will be named as 8.02 (February 2008).

Roadmap for version 1.0

Roadmap for version 1.5