Microsoft releases Windows 10 IoT Core Build 10556

Microsoft has today released a new Insider Preview build for Windows 10 IoT Core. The company today released Build 10556, which packs a number of improvements and bug fixes. Here’s what’s new in today’s release:

• Serial support on Raspberry Pi for TX and RX pins
• High performance GPIO driver option with > 100x improvement
• Arduino Wiring Project System for Visual Studio
• Support for the TPLink WiFi dongle on Raspberry Pi2
• Updated base OS build
• Bug Fixes

Alongside the latest additions, the latest build also includes a few known issues, which are listed below:

• Setting the orientation to “Portrait” may not be honored in a Universal App (3039042) WORKAROUND: None
• GPIO pin 4 may behave unexpectedly when switching between drive modes (3890679) WORKAROUND: If you need to switch drive modes, use a pin other than GPIO 4
• The Default startup app may conflict with itself when it is also deployed from Visual Studio (4266059). WORKAROUND: Change the default startup app to an application other than that you wish to deploy.
• GetNetworkUsageAsync may throw a System.UnauthorizedAccessException (1972129). WORKAROUND: None.
• The SPI driver may return a malformed buffer which includes two extra bytes at the beginning of the buffer for WriteRead sequence on the MinnowBoard Max (3076149) WORKAROUND: Compensate for the extra bytes in the code making the call by allocating a buffer that is x-2 bytes in size.
• The IoT Core Default Application may display two different IP addresses for the same adapter where one is a stale address. (3303771). WORKAROUND: None.
• UART1 flow control/serial handshake on MBM may default to ON and cannot be turned off (2995473). WORKAROUND: Use UART2 instead for devices without flow control.
• A NULL value may be returned by SerialDevice::FromIdAsync() when devices are connected to the top USB port on MinnowBoardMax (2175837) WORKAROUND: Use the bottom USB port.
• Data breakpoints have been disabled on the Raspberry Pi2 (4266252). WORKAROUND: Data breakpoints will be enabled in a future release.
• The Azure Active Directory Authentication Library may not work on Windows 10 IoT Core (4266261). WORKAROUND: Do not use the Azure Active Directory Authentication Library.
• More.com!PAGER::DisplayString may return INVALID_POINTER_READ exception. (1552523) WORKAROUND: None.
• The time may not sync on devices running IoT Core. (4444681) Manually update the time or programmatically force a time sync.

If you want to try out the latest build of Windows 10 IoT Core Insider Preview, you can download the ISO for Build 10556 here.