# \[UHD\] Release Announcement 3.9.0 **URL:** \ **Category:** GNU Radio\ **Created:** [September 1, 2015, 3:55am UTC](https://www.ruby-forum.com/t/uhd-release-announcement-3-9-0/243197 "2015-09-01T03:55:43Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Post date:** [September 1, 2015, 3:55am UTC](https://www.ruby-forum.com/t/uhd-release-announcement-3-9-0/243197/1 "2015-09-01T03:55:43Z")
Dear USRP users, after nearly 2 weeks of testing, the release candidate was deemed fit (with minor changes) for release, and as such I present the 3.9.0 release of UHD! The list of changes is pretty long, so I’ll refer to the changelog for details. Packagers and developers building from source will need to make sure to update the list of dependencies: Since 3.8.5, ORC has been removed, Cheetah was replaced by Mako (note: this is a build dependency, not a runtime dependency!), and python-requests is required to run our Py3k-compatible version of uhd\_images\_downloader. Devices with integrated RFIC have received a lot of feature updates, but also signal integrity improvements. The same goes for the X-Series devices. The B200mini, which was announced and demoed at GRCon last week, will work with this release as soon as it’s available. Developers will find some UHD changes that might come in handy. An API for using UHD from C is now available (can be disabled at compile-time, though). multi\_usrp has received a couple of new functions, as well. This is just a high-level list of changes! Have a peek at the changelog below for details, or the git commit logs for even more detail. Tarballs and installers for Debian and Fedora are online, as well as the updated manual. As usual, this resets maint branch to master. Going forward, we will continue to fix bugs on maint, and add features on master, which will become the next release (3.10) eventually. So, as usual, users interested in the most stable code should stick to our maint branch. The tag for this release is available here: > **[GitHub - EttusResearch/uhd at release\_003\_009\_000](https://github.com/EttusResearch/uhd/tree/release_003_009_000)** > > release\_003\_009\_000 Cheers, Martin ## 003.009.000 - X300: Updated DAC ctrl, FPGA toolchain is now entirely Vivado, improved master clock controls, added ADC self-cal capability, prepared for revisions 7 and 8, fixed flow control issue which could cause device to hang when receiving too many overruns - B2XX: Auto clock rate setting, added PID/VID pairs to support all B2XX- and derivatives, added temperature sensor, improved DC offset and IQ imbalance correction, added AGC support, support for FPGPIO connector on Rev6+ boards, full clock range support, updated FX3 firmware (side-channel logging capabilities, updated tx voltage swing, better configurability), default tick rate now 16 MHz, added B200mini support - E3XX: Added temperature sensor, FPGA toolchain is now entirely Vivado, improved DC offset and IQ imbalance correction, added AGC support, improved FPGA capture interface robustness for RFIC, make frame sizes configurable, replaced GPS control code with gpsd interfacing capabilities - Octoclock: Fixed bootloader + ethernet capabilities - Compilers: Supported MSVC versions are now 2012, 2013, 2015 (dropped 2010 support), added MinGW capabilities - Documentation: Many minor fixes and updates, merged all the info from [code.ettus.com](http://code.ettus.com) - UHD: Added sid\_t, CHDR-specific transports now get their own (un)packer codes, fixed a lot of compiler warnings, added filter API (currently available for AD9361 frontend), added soft-register API, replaced Cheetah with Mako, full Py3k compliance, updated images downloader tool (now is one tool for all devices), CMake minimum version is now 2.8, refactored general AD9361 peripheral management, refactored most core control management, added usb\_error type (used by B2xx devices), better exception handling at runtime, added C wrapper API, new dependency: python-requests - C API: Added to UHD (wraps C++ calls in C) - multi\_usrp: Added normalized gain setters/getters, IQ imbalance - DC offset correction API, filter API - Converters: Converter symbols now exported, better logging, removed ORC dependency, added u8 converters - Examples: Whitespace- and other cleanup, multi-channel fixes for some examples - Utils: Read more property tree types from the command line - Tools: kitchen sink updated, added mega\_fft