Before upgrading from 1.1.2 to 1.1.6 everything was perfect. Now everything is BAD. Errors are everywhere…
CSRF stopped working, forms just do not submit the token.
I was able to get the token in my JS code. Now I can not do that. How to solve it?
CUploadedFile works unexpectedly in different browsers…
And I suspect many other hidden, not documented *** are there.
What has happened to Yii - at 00:00 it turned into pumpkin or what?
I understand that you can be angry because your code is not working with the new version… but you have to understand that you jumped 3 versions (from 1.1.2 to 1.1.6)
so you need to check what has changed in all those versions after the 1.1.2
Note: I edited your topic title… please use proper language when posting!
No I am not angry, better say surprised 
Am I right that many changes not described on version change log?
Is it better decision to leave the old version?
Is the policy new site - new version, old site - old version correct?
Thank you!
All changes should be logged in the changelog and all required changes for the new version to the upgrade instruction…
I don’t see anything for the CSRF so it’s possible that some other change impacted the functionality… if you have time, please investigate and report it to us so that we can document that…
When making new version we try to be backward compatible as much as possible but sometime for the sake of improvements something must be changed (not removed, just changed the way it works)…
so before updating to the new version you must check all the new changes and see if it impacts your code…