I'm pleased to announce the release of ArgyllCMS V1.3.6 Changes and improvement include: * Added Spyder4 support. * Experimental ColorHug support is compiled in, but is disabled unless the environment variable "ENABLE_COLORHUG" is set, since it doesn't work reliably on all the Argyll supported platforms. * Changed and expanded display selection (-y flag) to be instrument specific. This is to support the Spyder4 and ColorHug, and adds a refresh display selection to the i1d3. * Tweaked i1d3 integration times and added accurate refresh period calibration to the refresh display mode. * Changed i1disp measurement logic to try and make it more robust against light to dark changes during a reading. * Added a -V option to spotread to allow tracking reading consistency. * Add support for NEC SpectraSensor Pro version of the i1d3. See <http://www.argyllcms.com/doc/ChangesSummary.html> for more details, and the log.txt file in the source archive for the most detail. As usual, go to <http://www.argyllcms.com/> to download V1.3.6. Graeme Gill.