It's long past time to take another look at ReactOS, the open-source project that attempts to be a re-implementation of Windows NT.

A list of (major, at least) things that have changed since last time:

• A build string now appears on the desktop, like with Windows betas.
• There is now a Japanese translation.
• Themes support!
• AHCI support.
• Ability to install to and boot from BTRFS volumes in addition to FAT32.
• Several command-line improvements.

It is important, of course, to note that the very much pre-alpha nature of ReactOS means it's nowhere near ready to go yet. Several things are still missing, most notably NTFS writing support.

Here you can see that you now get a choice to install on BTRFS partitions. I didn't try it, though.

The ReactOS splash screen, which hasn't changed.

   
A couple more new questions during the install process.

The default ReactOS desktop (well, almost default, I did install the VBox guest additions and the correct audio driver), which other than the build text is basically unchanged.

The ReactOS about screen.