Microsoft has released KB 3124262, the latest Cumulative Update for Windows 10 version 1511. Microsoft says:
This update includes improvements to enhance the functionality of Windows 10 Version 1511.
At the same time, Windows 10 Insiders in the Fast ring started receiving Preview 14251. Gabe Aul, on the Windows blog, says:
Sharp-eyed Insiders likely noted the big jump in build numbers from our last preview build (11102). Historically, the codebase for mobile had a different OS version than the codebase for PC because they were developed by different teams on different schedules. With Windows 10, we became one Windows team and brought these two codebases together. We started by changing the version string displayed in the UI to be consistent, which is why you saw similarly labeled builds over the past year for both Mobile and PC, but the underlying binary version numbers were still different. As part of our work getting the common codebase ready for the next release, we decided to complete that work and sync the build numbers between mobile and PC.
He also mentions that the "build doesn't have notable new features in it," although it fixes a whole bunch of bugs.
I count eight Windows 10 version 1511 cumulative updates in the past 10 weeks:
- Version 1511 (OS Build 10586), released Nov. 12, is the first version 1511 -- the one that raised the old RTM build 10240 version of Win10 to the November Update/Threshold 2 level
- Cumulative Update 1, KB 3105211, Nov. 10, build 10586.3 (yes, the first Cumulative Update was issued before build 10586 became the official version 1511)
- Cumulative Update 2, KB 3118754, Nov. 18, build 10586.11
- Cumulative Update 3, KB 3120677, Nov. 24, build 10586.14
- Cumulative Update 4, KB 3116908, Dec. 2, build 10586.17
- Cumulative Update 5, KB 3116900, Dec. 8, build 10586.29
- Cumulative Update 6, KB 3124200, Dec. 17, build 10586.36
- Cumulative Update 7, KB 3124263, Jan. 12, build 10586.63
- Cumulative Update 8, KB 3124262, Jan. 27, build 10586.71
If the past is any indication, chances are very good that neither update contains any noticeable changes -- as advertised.