is now considered a legacy version. Autodesk officially supports only the current release and the three previous versions
I notice you mentioned — this appears to be a typo, as Autodesk Revit versions follow a year-based naming convention (e.g., Revit 2020, 2021, 2022, etc.). There is no “Revit 202029.” You likely mean one of the following: revit 202029 hotfix updated
The hotfix includes several fixes across different Revit components: is now considered a legacy version
These hotfixes are cumulative, meaning the 2020.2.9 update includes all changes from previous versions like 2020.2.8. revit 202029 hotfix updated
Specifically, a 2020.2.9 hotfix would likely address three critical fronts: