15.2(3)T is out, so is IOS-XE 3.6S

…and inside, you’ll find a lot of completely new features overall (MediaTrace 2.0, IPv6 for GETVPN data plane, new IPv6 IP SLA extensions, LISP extensions), or for the first time available on software routing platforms like ISR G2s (BGP PIC Edge and Core, BGP route-server, Multicast Live-Live). everything can be found here.

simultaneously, IOS_XE 3.6S came out, along with bunch of features that are catching up with traditional IOS releases - things like CGNAT or hardware support for BFD.

have a nice reading, deploying and using!