- Bug #17881:`yii\db\Query::queryScalar()` wasn’t reverting the `select`, `orderBy`, `limit`, and `offset` params if an exception occurred (brandonkelly)
- Bug #17875: Use `move_uploaded_file()` function instead of `copy()` and `unlink()` for saving uploaded files in case of POST request (sup-ham)
- Bug #17884: Fix 0 values in console Table rendered as empty string (mikehaertl)
- Bug #13749: Fix Yii opens db connection even when hits query cache (shushenghong)