On 12/17/2017 Microsoft released the latest quarterly updates for Exchange 2010, 2013, & 2016.

Exchange 2010 SP3 RU19 Info | Download KB4035162
Exchange 2013 CU19 Info| Download KB4037224
Exchange 2016 CU8 Info | Download KB4035145

There aren’t any major changes in these CUs, but here are a couple of items to call out:

1. .NET Framework 4.7.1 support in Exchange 2013 and Exchange 2016.
   • Install CU19 or CU8 BEFORE you install .NET 4.71
   • .NET 4.7.1 will be REQUIRED with the planned June 2018 CUs, so plan on installing it after you install these CUs or the ones in March
2. Support for Hybrid Modern Authentication (HMA) for BOTH 2013 & 2016
   • More info on the EHLO blog here: Announcing Hybrid Modern Authentication for Exchange On-Premises
3. These CUs will not overwrite TLS settings like previous CUs would

For a bit more info see this EHLO blog post: Released: December 2017 Quarterly Exchange Updates