The USGA and R&A have revised some golf rules commencing 1st January 2016 …. the key ones being :

1. Ban on the anchored putting stroke
2. Withdrawl of Rule on Ball Moving After Address (Rule 18-2b)
3. Limited Exception to Disqualification Penalty for Submission of Incorrect Score Card (Rule 6-6d)
4. Modification of Penalty for Single Impermissible use of Artificial Devices or Equipment (Rule 14-3)

Full details can be read here.