Ds radio version known issue (#3257)

* Add radio version known issue

* Add note about event requirement

Author: Kevin-OConnor

source/docs/yearly-overview/known-issues.rst

@@ -6,6 +6,10 @@ This article details known issues (and workarounds) for FRC\ |reg| Control Syste
 
 ## Open Issues
 
+### Driver Station Radio Version Error
+
+**Issue:** The 2026 Driver Station displays "ERROR -44021 Radio Version" when used with VH-109 firmware 2.0.0 or 2.0.1. This is a bug due to the version checking not being updated for the 2026 season and does not affect robot connectivity. Version 2.0.1 is the latest current version and is required by the programming kiosk for use at events.
+
 ### Driver Station randomly disabled
 
 **Issue:** The Driver Station contains tighter safety mechanisms introduced in 2024 to protect against control issues. Some teams have seen this cause the robot to disable.