Yii team released Yii 1.1 version 1.1.17. This is the last release with enhancements.

The main enhancements in this release are:

• PHP7 compatibility.
• CHttpRequest can now automatically parse JSON with application/json content type.
• There's now database-based StatePersister implementation.
• Autoloader now doesn't error in case of non-existing namespaced classes so other autoloaders have chance to handle these.