View release notes for all guidelines
| PKU Guideline Version | Date Released | Release Notes | 
| v.2.5 (current) | 2022-06-08 | Addition of toolkit tables | 
| v.2.4 | 2022-03-25 | Minor type-o correction in Methodology section | 
| v.2.3 | 2022-03-24 | Minor correction in Recommendation 7.2.5 | 
| v.2.2 | 2022-03-24 | Minor grammatical correction | 
| v.2.1 | 2022-03-15 | Update to include Strength of Recommendation and Clinical Action ratings | 
| v.2.0 | 2022-03-11 | Release of updated guideline with Palynziq question 7 | 
| v.1.12 | 2016-08-10 | Spelling correction in Topic 5.4.1 | 
| v.1.8 | 2015-03-27 | Updated references and fixed type-o's | 
| v.1.5 | 2015-03-25 | Fixed spacing and link for NCBI | 
| v.1.1 | 2015-03-24 | Update question text | 
| v.1.0 | 2015-03-24 | Initial release of PKU Guidelines |