ReactOS 0.4.3 has been released.
Notable in this release is the switching to a new winsock library that had been started several years ago by Alex Ionescu and imported into trunk by Ged Murphy. Even after it was brought in however significant work remained to be done before it could replace the old winsock library, work which Peter Hater and Andreas Maier undertook. Their effort has now reached a point wherein the team feels it is ready to supplant the original library and 0.4.3 serves as the first release to incorporate it. As the winsock library underpins effectively all network operations in user mode applications, and its improvement should be a significant boon for ReactOS’ compatibility with such programs as the Good old Games (GoG) client and newer versions of the Python runtime.
The changelog offers all the details, and you can download it from their website.