A TDmH or TDcH Headend must be updated to v4.9.0 SW 


TDcH_TDmH_v4.9.0_Before_5.#.# 


SW v4.9.0 Issued 11.04.2025



Before updating  to a v5.#.# SW


tdch_tdmh-v5.1.3


SW v5.1.3 Issued 25.02.2026



Each link above has the associated Release Description and new Software Version