Similar to what it did with Firefox a couple of years ago, the Mozilla Foundation has decided to spin Thunderbird off as a separate subsidiary. The as-of-yet-unnamed subsidiary will be given $3 million in seed...
...of Windows 10, more Windows 10, and some other stuff
Windows 10 review: Microsoft goes back to the future
Windows 10 'Service Release 1' coming this month
These ten Lumias will be first to get Windows 10 Mobile
The Redmond Report - Episode 4: Windows 10 gets hit by lightning