Latest simplix pack cdd.dll version 6.1.7601.24546
So it is more recent. Maybe it incorporates what was done in that version you speak of. I don't know. I have not heard of that issue before.
Yes , by another update.
found these records in 'the convience update' cvs-file-list :
"Cdd.dll","6.1.7601.23403","107,520","25-Mar-2016","18:26","x86","None","Not applicable",
"Dxgkrnl.sys","6.1.7601.23403","730,344","25-Mar-2016","18:39","x86","None","Not applicable",
"Dxgmms1.sys","6.1.7601.23403","218,856","25-Mar-2016","18:39","x86","None","Not applicable",
"Lddmcore.ptxml","Not applicable","1,151","25-Mar-2016","14:44","Not applicable","None","Not applicable"
[...]
"Cdd.dll","6.1.7601.23403","144,384","25-Mar-2016","18:55","x64","None","Not applicable",
"Dxgkrnl.sys","6.1.7601.23403","986,344","25-Mar-2016","19:09","x64","None","Not applicable",
"Dxgmms1.sys","6.1.7601.23403","264,936","25-Mar-2016","19:09","x64","None","Not applicable",
"Lddmcore.ptxml","Not applicable","1,151","25-Mar-2016","14:43","Not applicable","None","Not applicable",
which means there were already updated for another matter in this same rollup , so, all should be fine.
And that's why you never heard about that before.
If you're curious about why I care so much of this matter :
check this thread on M4800 on Spiceworks Forum. This model is a notorious plague. (As all the previous victims , I discovered that after I bying it)
sorry for the disturbance

(M$ catalog.update website is so archaic)