Goodbye: Mainstream support for Windows Phone 8.1 is ending tomorrow July 10, 2017 by admin Tweet Mainstream support for Windows Phone 8.1 is wrapping up tomorrow. If the lifecycle support date isn’t extended, three out of every four Windows phone users will be using an unsupported handset. Read more… Neowin Related Posts:Microsoft Exchange Server 2019 mainstream support ends todayThe Discord app is ending support for 32-bit Windows…Paid extended Windows 10 support will be a nightmare…PSA: Windows 8.1's end-of-support date is only 30 days awayPSA: Support for Windows 8.1 is ending next week