Windows 10 Hotfix Repository

You need to login to view this posts content.

 

You need to login to view this posts content.

 

I don't understand how it's superseded since the "old" one KB4100347 include far more Processors and the latest only
for 6th to 8th Gen CPUs.

 

The 1607 microcode update has an older v3 version which wasn't offered here likewise .

 

KB4100347 v2 and KB4091664 v4 are the exact same files (same hash) that have been released already on the 24th of July.

-andy-

 

You need to login to view this posts content.

 

You need to login to view this posts content.

 

@Enthousiast

you are comparing v3/v4 and v1/v2

EDIT: https://forums.mydigitallife.net/threads/windows-10-hotfix-repository.57050/page-310#post-1452058

-andy-

 

Update KB number is changed, it was KB4090007 for 1709 now it is KB4346085

 

Does this mean 1809? or it will go for 19H1?

 

I compared the 2 released editions shown on Catalog, but it doesn't matter, it's a web of microupdates anyway

 

Ok as description shows, those series of old ones was for Spectre Variant 2 (CVE 2017-5715: “Branch Target Injection”), and for first time they released publicly on WU.
New one however, is for Spectre Variant 3a (CVE-2018-3640: "Rogue System Register Read (RSRE)"),Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)"), L1TF (CVE-2018-3615, CVE-2018-3620, CVE-2018-3646: "L1 Terminal Fault") and for now it will be only on Catalog.

Edit: new one also contain fix for Spectre Variant 2

 

On a clean install of 1803 and on my Ivy Bridge, i got offered only the KB4100347.

 

You need to login to view this posts content.

 

Since the 'newer' one is useless on my Ivy Bridge system, it cannot supersede the offered 'older' one with support for my CPU .

 

We've seen MSFT making publishing errors before, regarding the term "superseded" on catalog

 

It's the same package with a higher version number in 4346087 though.

 

I've uninstalled and hidden in the windows 10 updates due to the performance drop on my CPU (5930k).

 

You need to login to view this posts content.

 

The KB page for KB4346087 (for 1607) says the same- that it contains all previous updates released in KB4091664 also.

I think the list of processors shown on the KB pages for these microcode updates are only ones that have been added new or have been updated since the previous microcode update and that is why the list looks smaller than previous update's lists.

------

Do you say this based on this list of processors shown on the 4346087's KB page? Because as AndyMutz pointed out on the KB page, all the previous ones should be in the latest.