--- title: "Update center" description: "LEON is a web-based aviation software supporting flight operations management and scheduling software for business charter - Try Leon for free" url: "https://www.leonsoftware.com/support/update-center.html?start=210" date: "2026-07-07T11:41:52+00:00" language: "en-GB" --- # 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 4.5 released 06 Apr 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=174:leon-4-5-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=174:leon-4-5-released&catid=15) [ ## Leon 4.4 released 20 Mar 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=173:leon-4-4-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=173:leon-4-4-released&catid=15) [ ## Leon 4.3 released 06 Mar 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=172:leon-4-3-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=172:leon-4-3-released&catid=15) [ ## Leon 4.2 released 20 Feb 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=171:leon-4-2-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=171:leon-4-2-released&catid=15) [ ## Leon 4.1 released 06 Feb 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=169:leon-4-1-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=169:leon-4-1-released&catid=15) [ ## Leon 3.65 released 23 Jan 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=168:leon-3-65-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=168:leon-3-65-released&catid=15) [ ## Leon 3.64 released 09 Jan 2018 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=167:leon-3-64-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=167:leon-3-64-released&catid=15) [ ## Leon 3.63 released 27 Dec 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=166:leon-3-63-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=166:leon-3-63-released&catid=15) [ ## Leon 3.62 released 12 Dec 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=164:leon-3-62-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=164:leon-3-62-released&catid=15) [ ## Leon 3.61 released 28 Nov 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=163:leon-3-61-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=163:leon-3-61-released&catid=15) [ ## Leon 3.60 released 14 Nov 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=157:leon-3-60-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=157:leon-3-60-released&catid=15) [ ## Leon 3.59 released 31 Oct 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=156:leon-3-59-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=156:leon-3-59-released&catid=15) [ ## Leon 3.58 released 17 Oct 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=151:leon-3-58-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=151:leon-3-58-released&catid=15) [ ## Leon 3.57 released 03 Oct 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=152:leon-3-57-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=152:leon-3-57-released&catid=15) [ ## Leon 3.56 released 19 Sep 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=89:leon-3-56-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=89:leon-3-56-released&catid=15) [ ## Leon 3.55 released 05 Sep 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=88:leon-3-55-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=88:leon-3-55-released&catid=15) [ ## Leon 3.54 released 23 Aug 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=87:leon-3-54-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=87:leon-3-54-released&catid=15) [ ## Leon 3.53 released 08 Aug 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=86:leon-3-53-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=86:leon-3-53-released&catid=15) [ ## Leon 3.52 released 25 Jul 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=85:leon-3-52-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=85:leon-3-52-released&catid=15) [ ## Leon 3.51 released 12 Jul 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=84:leon-3-51-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=84:leon-3-51-released&catid=15) [ ## Leon 3.50 released 27 Jun 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=83:leon-3-50-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=83:leon-3-50-released&catid=15) [ ## Leon 3.49 released 13 Jun 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=81:leon-3-49-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=81:leon-3-49-released&catid=15) [ ## Leon 3.48 released 30 May 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=80:leon-3-48-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=80:leon-3-48-released&catid=15) [ ## Leon 3.47 released 16 May 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=79:leon-3-47-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=79:leon-3-47-released&catid=15) [ ## Leon 3.46 released 04 May 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=31:leon-3-46-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=31:leon-3-46-released&catid=15) [ ## Leon 3.45 released 20 Apr 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=78:leon-3-45-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=78:leon-3-45-released&catid=15) [ ## Leon 3.44 released 04 Apr 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=77:leon-3-44-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=77:leon-3-44-released&catid=15) [ ## Leon 3.43 released 22 Mar 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=76:leon-3-43-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=76:leon-3-43-released&catid=15) [ ## Leon 3.42 released 21 Feb 2017 [Read more](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=75:leon-3-42-released&catid=15) ](https://www.leonsoftware.com/index.php?option=com_content&view=article&id=75:leon-3-42-released&catid=15) [ ## 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) ### Subscribe and Follow Us Below to Stay up to Date ![flight schedule software](https://www.leonsoftware.com/images/svg_icons/arrow-swirl-w.svg) ## Schema ```json { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.leonsoftware.com" }, { "@type": "ListItem", "position": 2, "name": "Support", "item": "https://www.leonsoftware.com/?Itemid=711" }, { "@type": "ListItem", "position": 3, "name": "Update center", "item": "https://www.leonsoftware.com/support/update-center.html" } ] } ```