# Update center Release notes When releasing any update of our software, which is normally twice a month, we publish here all release notes. During each release, we gradually enable new features, starting with a randomly chosen small sample of our customers. After a few days, all new features are available to all our customers on the production server (under [**leon.aero**](https://leon.aero/)). [ ## Leon 3.41 released 18 Jan 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=74:leon-3-41-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=74:leon-3-41-released&catid=15) [ ## Leon 3.40 released 29 Nov 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=73:leon-3-40-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=73:leon-3-40-released&catid=15) [ ## Leon 3.39 released 19 Oct 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=71:leon-3-39-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=71:leon-3-39-released&catid=15) [ ## Leon 3.38 released 21 Sep 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=70:leon-3-38-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=70:leon-3-38-released&catid=15) [ ## Leon 3.37 released 18 Aug 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=69:leon-3-37-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=69:leon-3-37-released&catid=15) [ ## Leon 3.36 released 12 Jul 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=68:leon-3-36-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=68:leon-3-36-released&catid=15) [ ## Leon 3.35 released 21 Jun 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=67:leon-3-35-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=67:leon-3-35-released&catid=15) [ ## Leon 3.34 released 18 May 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=66:leon-3-34-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=66:leon-3-34-released&catid=15) [ ## Leon 3.33 released 21 Apr 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=65:leon-3-33-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=65:leon-3-33-released&catid=15) [ ## Leon 3.32 released 16 Mar 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=64:leon-3-32-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=64:leon-3-32-released&catid=15) [ ## Leon 3.31 released 18 Feb 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=63:leon-3-31-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=63:leon-3-31-released&catid=15) [ ## Leon 3.30 released 25 Jan 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=62:leon-3-30-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=62:leon-3-30-released&catid=15) [ ## Leon 3.29 released 05 Jan 2016 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=60:leon-3-29-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=60:leon-3-29-released&catid=15) [ ## Leon 3.28 released 17 Nov 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=59:leon-3-28-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=59:leon-3-28-released&catid=15) [ ## Leon 3.27 released 20 Oct 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=58:leon-3-27-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=58:leon-3-27-released&catid=15) [ ## Leon 3.26 released 24 Sep 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=57:leon-3-26-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=57:leon-3-26-released&catid=15) [ ## Leon 3.25 released 20 Aug 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=56:leon-3-25-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=56:leon-3-25-released&catid=15) [ ## Leon 3.24 released 22 Jul 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=55:leon-3-24-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=55:leon-3-24-released&catid=15) [ ## Leon 3.23 released 23 Jun 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=54:leon-3-23-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=54:leon-3-23-released&catid=15) [ ## Leon 3.22 released 26 May 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=53:leon-3-22-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=53:leon-3-22-released&catid=15) [ ## Leon 3.21 released 21 Apr 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=52:leon-3-21-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=52:leon-3-21-released&catid=15) [ ## Leon 3.20 released 18 Mar 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=51:leon-3-20-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=51:leon-3-20-released&catid=15) [ ## Leon 3.19 released 20 Feb 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=49:leon-3-19-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=49:leon-3-19-released&catid=15) [ ## Leon 3.18 released 15 Jan 2015 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=48:leon-3-18-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=48:leon-3-18-released&catid=15) [ ## Leon 3.17 released 13 Nov 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=47:leon-3-17-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=47:leon-3-17-released&catid=15) [ ## Leon 3.16 released 14 Oct 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=46:leon-3-16-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=46:leon-3-16-released&catid=15) [ ## Leon 3.15 released 23 Sep 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=45:leon-3-15-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=45:leon-3-15-released&catid=15) [ ## Leon 3.14 released 27 Aug 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=44:leon-3-14-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=44:leon-3-14-released&catid=15) [ ## Leon 3.13 released 11 Jul 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=43:leon-3-13-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=43:leon-3-13-released&catid=15) [ ## Leon 3.12 released 11 Jun 2014 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=42:leon-3-12-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=42:leon-3-12-released&catid=15) ### Subscribe and Follow Us Below to Stay up to Date ![flight schedule software](https://www.leonsoftware.com/images/svg_icons/arrow-swirl-w.svg)