Microsoft released updated U-Prove cryptoarchitecture
Already fully compatible with ABC4Trust engine
On December 19, 2013 Microsoft released a public update to its U-Prove Cryptographic Specification V1.1 and open-source C# SDK. This Revision 3 is now interoperable with the ABC4Trust architecture as recently described in "H2.2. ABC4Trust Architecture for Developers".
This smooth integration had also been enabled by the fact, that ABC4Trust had already used a previously unreleased iteration of this release that is now publicly available.