Following Windows 10 Mobile build 14393.321, the last 'patch Tuesday' production update a month ago, we now have a similar round-up release, updating production status (plus RP and slow ring) devices to 14393.448. See the official changelog below. Notably, 'slow' ring Insider devices also see this update, so we still haven't got to the point where Redstone 2 is is considered stable enough even for them. However, I am expecting the 'slow' Insiders ring to jump to the Redstone 2 branch within the next few weeks, as per my analysis the other day, so this may be the last non-Redstone 2 'slow' release.

From the Microsoft changelog page (focussing on PC, but some components are relevant to Mobile):

• Improved the reliability of multimedia audio, Remote Desktop, and Internet Explorer 11.
• Addressed issue that prevents users from connecting to a virtual private network (VPN).
• Addressed issue with a scheduled task that doesn’t run in Task Scheduler after reenabling.
• Addressed issue to update the Access Point Name (APN) database.
• Addressed issue with Japanese characters that are missing when converted by the Input Method Editor.
• Addressed issue with the system tray showing no Wi-Fi connection even when Wi-Fi is present.
• Addressed issue with Windows devices that disconnect from the Internet prematurely before users can complete their paid Wi-Fi purchase.
• Addressed issue to update the new Belarusian ruble symbol to Br and the new ISO 4217 code to BYN.
• Addressed additional issues with multimedia, Windows kernel, packaging release management, authentication, Microsoft Edge, Internet Explorer 11, Remote Desktop, Active Directory, wireless networking, Windows shell, graphics, enterprise security, and Microsoft HoloLens.
• Security updates to Boot Manager, Windows operating system, kernel-mode drivers, Microsoft Edge, Internet Explorer 11, Microsoft Virtual Hard Drive, Common Log File System driver, Microsoft Video Control, Common Log File System driver, Windows authentication methods, Windows File Manager, and the Microsoft Graphics Component.

So several major mobile-related fixes then and well worth having for all general users on non-Insider devices. Watch this space for more news of the various Insiders rings over the next few weeks.

Anyone with a smartphone running 'production' Windows 10 Mobile 'Anniversary Update' will get this update over-the-air. Your phone will tell you within a few hours, or you can check manually in Settings/Updates & Security/Phone update.