fwiw ~ yesterday, as I recall.
I had a Norton update requiring machine Restart (not Shut down)
My Norton 360 remains at 26.2.10802 (build 26.2.10802.970)
https://community.norton.com/t/tracking-thread-for-the-new-version-25-xx-release/369618/354
Did you try Norton 360 Remover → Remove only?