This version is for 2018 TVs (later updates went to 05.x.x for some models), but it remains a stable baseline for many units that were not updated further due to regional or hardware limitations.
If you see 03.xx.xx , 04.00.xx , or 04.05.xx , you are eligible for the 04.06.75 update. lg webos 04.06.75
The text read: .
General software refinements intended to keep the user experience smooth on models that may be nearing their end-of-life support cycle. Is Your TV Compatible? This version is for 2018 TVs (later updates went to 05