Higest version of PHP supported by Yii 1.1.16

What is the highest version of PHP Yii 1.1.16 can run on? (concerned about deprecation issues). I can find the minimum php version of 5.1 is required by Yii 1.1.16.


Is there no answer to this? Not trying to be disrespectful, but seems like a pretty straight forward question…

At least it’s not PHP7