Although at the 2019 AGM five Class Rule Changes were proposed, World Sailing has approved three changes to the Optimist Class Rules. World Sailing did not approve the change to digital numbers, so therefore, digital numbers will not be permited. The 2020 Version is now published on the IODA Website.
The three Class Rule Changes are:
126.96.36.199 – regarding the fixing plates for rudder fittings on the hull
188.8.131.52 – regarding the tiller and tiller extension
184.108.40.206 – regarding the batten pocket patch
The changes in the rule are indicated in red text in the copy of the Class Rule.
The format of the rules has been revised and the diagrams have been updated and replaced to make the Class Rules easier to read.
The 2020 Optimist Class Rules come into effect on January 1, 2020.
2020 International Optimist Class Rules Full Text