Editing Software versioning (section)

==Release train==
A '''software release train''' is a form of software release schedule in which a number of distinct series of versioned software releases for multiple products are released as a number of different "trains" on a regular schedule. Generally, for each product line, a number of different release trains are running at a given time, with each train moving from initial release to eventual maturity and retirement on a planned schedule. Users may experiment with a newer release train before adopting it for production, allowing them to experiment with newer, "raw", releases early, while continuing to follow the previous train's [[point release]]s for their production systems prior to moving to the new release train as it becomes mature.

Cisco's [[Cisco IOS|IOS]] software platform used a release train schedule with many distinct trains for many years. More recently, a number of other platforms including [[Firefox]] and Fenix for Android,<ref>{{Cite web|url=https://wiki.mozilla.org/Release_Management/Calendar|title=Firefox Release Calendar – MozillaWiki|website=wiki.mozilla.org}}</ref> [[Eclipse (software)|Eclipse]],<ref>{{Cite web|url=https://wiki.eclipse.org/Simultaneous_Release|title=Simultaneous Release – Eclipsepedia|website=wiki.eclipse.org}}</ref> [[LibreOffice]],<ref>{{Cite web|url=https://wiki.documentfoundation.org/ReleasePlan|title=ReleasePlan – The Document Foundation Wiki|website=wiki.documentfoundation.org}}</ref> [[Ubuntu]],<ref>{{Cite web|url=https://wiki.ubuntu.com/Releases|title=Releases – Ubuntu Wiki|website=wiki.ubuntu.com}}</ref> Fedora,<ref>{{Cite web|url=https://fedoraproject.org/wiki/Releases|title=Releases – Fedora Project Wiki|website=fedoraproject.org}}</ref> Python,<ref>{{Cite web|url=https://www.python.org/dev/peps/|title=PEP 0 – Index of Python Enhancement Proposals (PEPs)|website=Python.org}}</ref> digiKam<ref>{{Cite web|url=https://digikam.org/documentation/releaseplan/|title=Release Plan|date=March 25, 2018|website=digikam.org}}</ref> and [[VMware]]<ref>{{Cite web|url=https://www.virten.net/vmware/product-release-tracker/|title=VMware Product Release Tracker (vTracker)|date=February 13, 2015|website=Virten.net}}</ref> have adopted the release train model.