Gears of War 4 now has cross play between Xbox One and Windows 10

Earlier last year, Microsoft experimented with a cross play weekend between Xbox One and Windows 10 players on Gears of War 4.
The test was successful according to Microsoft, as they announced today that Gears of War 4 Social Quickplay playlist will feature cross platfrom play effective immediately. Core and Competitive modes will remain platform specific at this time. Microsoft commented on the new mode by saying

We are incredibly excited to bring our Xbox One and Windows 10 PC communities closer together in Public Versus multiplayer through the power of Xbox Live. Thank you for your participation, feedback and passion – without our incredible fans, this decision would not have been possible. Whichever platform you play Gears of War 4 on, we’ll see you online in Social Quickplay!

You can test out the new mode now on either platform, and be sure to check out the stats of the test weekend below.
 

• Over 750,000 Matches Played
• Over 115,000 Unique Participants – 91/9 split from Xbox to Windows 10
• Average of 6.2 matches played by Xbox users, with 11.2 for Windows 10 users
• Over 90% of all matches during the weekend included a mix of Windows 10 and Xbox One players
• Windows 10 and Xbox players had closely-matched results when comparing Average KD, Score and Kills per match based on skill ratings
• The quality of matches improved for both Xbox and Windows 10 users – social lobbies had a higher average user count, and players completed 95% of all social matches entered vs 90% prior to Cross-play Weekend