This release included crucial updates to vMix Call (the browser-based caller integration).

vMix (version/build near 260046, 2021)

If you search for that string, you’ll likely find:

Consequences can include:

If you purchased a perpetual license before 2022, it should activate vMix 26. If you purchased a subscription or a newer perpetual license, you cannot downgrade beyond vMix 27. Check your license terms.

vMix 2021 releases included versions like:

To get a legitimate 2021 version: