Version history
| Version | Date | Based on | Features/Notes | Ref(s) |
|---|---|---|---|---|
| Zorin OS 1.0 | 1 July 2009 | Initial release | [12] | |
| Zorin OS Limited Edition '09 | 7 December 2009 | |||
| Zorin OS 2 | 1 January 2010 | 5 different varieties: Core, Gaming, Multimedia, Educational, Ultimate | ||
| Zorin OS 3 | 10 June 2010 | Ubuntu 10.04 LTS | Zorin OS Look Changer added, installation slideshow tutorial | |
| Zorin OS 4 | 22 December 2010 | Ubuntu 10.10 | Improved file manager, performance improvements | |
| Zorin OS 5 | 6 June 2011 | Ubuntu 11.04 | Core and Ultimate available; new theme, updated software, Zorin-specific program improvements | |
| Zorin OS 5.1 | 23 August 2011 | Updated Linux Kernel, aesthetic updates | ||
| Zorin OS 6 | 18 June 2012 | Ubuntu 12.04 LTS | Core and Ultimate available; new desktop environment, "Zorin Look Changer" | |
| Zorin OS 6.1 | 8 November 2012 | Updated kernel & software, security updates | ||
| Zorin OS 6.2 | 27 February 2013 | "Zorin Menu" update, stability improvements | ||
| Zorin OS 6.3 | 14 May 2013 | Updated kernel | ||
| Zorin OS 7 | 10 June 2013 | Ubuntu 13.04 | Core and Ultimate available; updated software, Linux kernel 3.8, design overhaul | |
| Zorin OS 6.4 | 28 August 2013 | Ubuntu 12.04 LTS | Updated kernel and software | |
| Zorin OS 8 | 27 January 2014 | Ubuntu 13.10 | Core and Ultimate available; updated software, UI improvements, Zorin theme changer[13] | |
| Zorin OS 9 | 15 July 2014 | Ubuntu 14.04 LTS | Core and Ultimate available; stability improvements, Firefox support, more themes | |
| Zorin OS 10 | 1 August 2015 | Ubuntu 15.04 | Default application refresh, performance & security improvements | |
| Zorin OS 11 | 3 February 2016 | Ubuntu 15.10 | Core and Ultimate available; new default applications, desktop user experience overhaul | |
| Zorin OS 12 | 18 November 2016 | Ubuntu 16.04 LTS | New Zorin Desktop, activities overview, search revamp[14] | |
| Zorin OS 12.1 | 27 February 2017 | Bug fixes, new desktop features, performance improvements | ||
| Zorin OS 12.2 | 8 September 2017 | Desktop refinements, performance and stability improvements | ||
| Zorin OS 12.3 | 16 March 2018 | Wine compatibility built-in, Direct3D 10 & 11 support[15] | ||
| Zorin OS 12.4 | 13 September 2018 | Linux kernel 4.15, performance improvements, software update process streamlining[16] | ||
| Zorin OS 15 | 5 June 2019 | Ubuntu 18.04 LTS | Performance improvements, Zorin Connect (Android sync notifications), New desktop theme, Touch Layout functions, Flatpak support, New System font[1] | |
| Zorin OS 15.2 | 5 March 2020 | Stronger security and hardware compatibility[1] | ||
| Zorin OS 15.3 | 8 September 2020 | Works better with the updated LibreOffice. Improved hardware compatibility and security.[1] | ||
| Zorin OS 16 | 17 August 2021 | Ubuntu 20.04 LTS | Visual changes, based on Ubuntu 20.04 LTS, Flatpak support out of the box.[2] |
You right but it felt like 3-years, maybe cause the dam pandemic is going on forever and it just feels like society and everything slowed to a crawl, so has my brain. I got that above from the oh Wiki

