win8.1 update3 main update content:
A refreshed language pack;
Deep protection safety and schannel strengthening;
Support newer hardware (boot order allowance, SD card improvement, USB debugging);
Improved Web services for device (WSD) printer support in network switches;
Performance and reliability improvements in a clustered virtual machine mission-critical environment;
Improved manageability;
Other hardware support.
It is understood that the newly updated 32-bit version of approximately 800MB 500mb,64 bit version, recommended users to upgrade, through Windows Update can be directly upgraded.
In addition, Microsoft internal staff Gabriel aul on Twitter, Win10 Technology Preview build version 9879 has been ready to push the "slow ring" users, is currently waiting for the detection of bug fixes, the latter will start to push after the completion.