Microsoft releases cumulative update 10586.318 for Windows 10 PCs and phones

It's Patch Tuesday, and that means software updates for all. New cumulative updates are rolling out for Windows 10 PCs, tablets, and phones, bringing the build number to 10586.318.

It's available for everyone, including non-Insiders as well as Insiders that are using the Release Preview ring. This update skips over the last one - build 10586.240 for PCs and 10586.242 for Mobile - which shipped to the Release Preview ring, but never to Production.

As with most cumulative updates, there are no new features. Instead, the new build focuses on fixes and stability improvements.

Here's what's new in build 10586.318 for PCs:

Improved reliability in a number of areas including Cortana, Bluetooth, Shell, Internet Explorer 11, Microsoft Edge, Miracast, and USB.

Fixed memory leak that occurs when opening a portable document format (PDF) form multiple times.

Fixed issues with text alignment for right to left languages in Internet Explorer 11 and Microsoft Edge.

Fixed issue that affected Bluetooth function when a PC resumes from sleep.

Fixed issue where user accounts weren't locked out after a number of failed sign in attempts.

Fixed issue with revised daylight saving time.

Fixed issue that sometimes corrupts CompactFlash cards inserted into a card reader.

Fixed issue that caused recorded video to be lost when answering an incoming call on some phones.

Fixed issue that could result in unexpected battery drain while the phone screen is off.

Fixed additional security issues with kernel mode drivers, remote procedure calls, the Microsoft Graphics Component, Internet Explorer 11, Microsoft Edge, Windows Shell, Windows Journal, Virtual Secure Mode, Schannel, and Jscript.

Here's what's new for Mobile:

Reliability, performance and stability improvements.

Fix for a problem that could result in unexpected battery drain while the phone screen is off.

Improvements to the update system to prevent phones getting into a state where attempting to take an update may lead to errors 0x800f081f or 0x80070570.

Fix for a problem that caused some phones to finish the initial setup wizard with an incomplete set of app tiles on the Start screen.

Improvements to the reliability of USB-C connections.

Improvements to Cortana, including a fix for a problem where music playback would not resume after dismissing an incoming text, and a problem with Quiet Hours not setting automatic rules for every day.

Fix for a problem that could result in the phone to hang or restart when visiting certain web pages in Microsoft Edge.

Fix for a problem that caused recorded video to be lost when answering an incoming call on some phones.

Improvements for reliability of internet connection sharing (ICS) and tethering.

Fix for a problem that caused the navigation bar to overlay and hide part of the screen for some apps on certain phones.

If you still haven't upgraded to Windows 10 version 1511 just yet, you have a cumulative update waiting as well. Here's what's new in Windows 10 for PCs build 10240.16854:

Fixed memory leak that occurs when opening a portable document format (PDF) form multiple times.

Fixed issues with text alignment for right to left languages in Internet Explorer 11 and Microsoft Edge.

Fixed issue that caused sign in to temporarily fail after a password change.

Fixed issue that sometimes corrupts CompactFlash cards inserted into a card reader.

Fixed issue with losing network connectivity intermittently when roaming between Wi‑Fi access points.

Improved security in the Windows kernel.

Fixed issue with revised daylight saving time.

Fixed additional issues with Internet Explorer 11.

Updated security for kernel mode drivers.

Fixed additional security issues with the Microsoft Graphics Component, remote procedure calls, Internet Explorer 11, Microsoft Edge, Windows Journal, JScript, Schannel, Windows Shell, and Virtual Secure Mode.