9. Updating the License: Wizards or its designated Agents may publish updated versions of this License. You may use any authorized version of this License to copy, modify and distribute any Open Game Content originally distributed under any version of this License. https://roll20.net/compendium/dnd5e/OGL%20License
From Gizmodo: One of the biggest changes to the document is that it updates the previously available OGL 1.0 to state it is “no longer an authorized license”
Some more background on the terms: https://www.larsenlawoffices.com/can-terminate-perpetual-lic...