Version timeline
History and Short-Term Version Timeline
In the following chart all release dates of past, current and some future railML® versions are listed:
Version | Release date | Supported until | License | Comment |
0.x | 2002-2005 | December 2005 | no (internal usage only) | Beta version timetable |
1.0 | December 2005 | June 2013 | proprietary | First practical experience |
1.1 | November 2007 | June 2013 | proprietary | |
2.0 | November 2nd, 2009 | March, 2017 | restricted CC-BY-ND 2.0 | |
2.1 | June 15th, 2011 | March, 2017 | restricted CC-BY-ND 2.0 | Downwardly compatible with V2.0 |
2.2 | June 11th, 2013 | June 30st, 2021 | restricted CC-BY-NC-ND 3.0 | Downwardly compatible with V2.1-V2.0 |
2.3 | March 10th, 2016 | June 30st, 2024 | restricted CC-BY-NC-ND 3.0 | Predominant downward compatible with V2.2-V2.0 |
2.4 | October 7th, 2018 | November, 2026 | restricted CC-BY-NC-ND 3.0 | Predominant downward compatible with V2.3-V2.0 |
2.5 | September 1st, 2021 | ≥2028 | restricted CC-BY-NC-ND 3.0 | Predominant downward compatible with V2.4-V2.0 Also adopted as an ISO 4398:2022 standard |
3.0 | October 31st, 2017 | February 19th, 2019 | No (internal usage only) | all Beta and RC versions only; based on RTM V1.1 |
3.1 | February 19th, 2019 | ≥2026 | restricted CC-BY-NC-ND 4.0 | based on RailTopoModel V1.2 |
3.2 | April 26nd, 2022 | ≥2029 | restricted CC-BY-NC-ND 4.0 | based on RailTopoModel V1.4 |
3.3 Alpha for UC LTCP |
June 6th, 2024 | August 14th, 2024 | No (working group usage only) | based on RailTopoModel V1.5 |
3.3 Beta | August 14th, 2024 | Release of 3.3 | No (community test usage only) | based on RailTopoModel V1.5 |
3.3 | November 5th, 2024 | ≥2031 | restricted CC-BY-NC-ND 4.0 | based on RailTopoModel V1.5 |
3.4 | ≥ 2025 | restricted CC-BY-NC-ND 4.0 |
Important: Announcements about the discontinuation of support for a version will be announced at least 24 months in advance.
Last update: June 30th, 2024 by Vasco Paul Kolmorgen (Discontinuation of 2.3; schedule for 3.3 Beta; see presentations of 45th railML conference for more background information)
Long-Term Version Timeline
In order to offer a more holistic, long-term planning, this long-term version timeline was created. Its purpose is to give an overview over all upcoming versions, but please notice that it is subject to change.
![](assets/images/1/2024-06-05_railML_VersionTimelineGraphic-db6bdd45.jpg)
Please click on the image for a larger version or use the download.
Feel free to contact railML.org for further explanations, questions and remarks at any time.