This was expected more than a year [back]. Ten months ago there was a topic that CI2 - soon . Since then, there have been changes in the development team, and even so, the prospects of the signal indicator were doubtful. Now most of the fans have gone from CI to Yii or Kohana, if not from php to python or ruby. But quite unexpectedly, a release was announced on the framework site.
Most of the buns can be viewed, for example, by the above topic. And in the official announcement stated the following.
In the minimum requirements php 5.1.
Drivers.
Application packages.
Removed scaffolding and class validation, removed plug-ins in favor of helpers.
Changes in the router, forms.
Kesh became not only file, but also APC and memcache.
Command line for crown.
50+ bugfixes.
20+ enhancements and tweaks.
What developers are going to work on next is: documentation, an authentication library, a more object model.