The ReactOS free software project is turning 30 this year and its “open-source Windows” OS ambitions remain. They are starting out this year with another “major step” towards Windows NT 6.0 compatibility.
ReactOS developers shared that after months of prep work, their MSVCRT implementation in ReactOS has been synced against the Wine 10.0 state. MSVCRT is the DLL as part of the Microsoft C Runtime library.



Well, not a super duper lot by itself per sé. But ReactOS tries to be a binary compatible, open source Windows clone and was stuck at an 2000/XP-level scope of compatibility for ages. Now they progress into the Vista-7-8(.1) era. I suppose this can open a few doors for some further improvements to the rest of the system, given some time.
Interesting, thank you.