Just like every other update, users expected a new patch but, this month Microsoft held it from release. Microsoft Security Response Center (MSRC) announced that the February 2017 Security Update would be postponed.
Our top priority is to provide the best possible
experience for customers in maintaining and protecting their systems.
This month, we discovered a last minute issue that could impact some
customers and was not resolved in time for our planned updates today.
After considering all options, we made the decision to delay this
month’s updates. We apologize for any inconvenience caused by this
change to the existing plan.
Stay tuned for more on this.
Source: On MSFT