Editing Software versioning (section)

===Date of release===
[[File:Street Fighter EX Opening Version Number.png|thumb|''Street Fighter EX'' [[splash screen]] showing release number in [[CalVer (software)|CalVer]] format: "961219 USA"]]
Many projects use a date-based versioning scheme called '''Calendar Versioning'''<!-- bolded per [[WP:MOSBOLD]] as a redirect target --> (aka '''CalVer'''<!-- bolded per [[WP:MOSBOLD]] as a redirect target --><ref>{{Cite web|url=https://calver.org/ |title=Calendar Versioning — CalVer|website=calver.org |access-date=October 10, 2019}}</ref>).

[[Ubuntu]] is one example of a project using calendar versioning; Ubuntu 18.04, for example, was released in April 2018. This has the advantage of being easily relatable to development schedules and support timelines. Some video games also use date as versioning, for example the [[arcade game]] ''[[Street Fighter EX]]''. At startup it displays the version number as a date plus a region code, for example ''961219 ASIA''.{{citation needed|date=November 2020}}

When using dates in versioning, for instance, file names, it is common to use the [[ISO 8601]] scheme<ref name="ISO Date">{{cite web|url=http://www.cl.cam.ac.uk/~mgk25/iso-time.html|title=International standard date and time notation|author=Markus Kuhn|access-date=April 11, 2009|date=December 19, 2004|publisher=[[University of Cambridge]]}}</ref> ''YYYY-MM-DD'', as this is easily string-sorted in increasing or decreasing order. The hyphens are sometimes omitted. The [[Wine (software)|Wine]] project formerly used a date versioning scheme, which used the year followed by the month followed by the day of the release; for example, "Wine 20040505".{{citation needed|date=November 2020}} ''[[Minecraft]]'' had a similar version formatting, but instead used DDHHMM, ex: rd-132211, 13 being the 13th of May, and 2211 being 22:11.

[[Microsoft Office]] build numbers are an encoded date:<ref name="ms">{{cite web|url=https://blog.codinghorror.com/whats-in-a-version-number-anyway/|title=Coding Horror: What's In a Version Number, Anyway?|date=February 15, 2007|access-date=November 15, 2016|author=Jeff Atwood}}</ref> the first two digits indicate the number of months that have passed from the January of the year in which the project started (with each major Office release being a different project), while the last two digits indicate the day of that month. So 3419 is the 19th day of the 34th month after the month of January of the year the project started.{{citation needed|date=November 2020}}

Other examples that identify versions by year include [[Adobe Illustrator]] 88 and [[WordPerfect Office]] 2003. When a year is used to denote version, it is generally for marketing purposes, and an actual version number also exists. For example, [[Windows 95]] is internally versioned as [[MS-DOS 7.00]] and Windows 4.00; likewise, [[Windows 2000]] is internally versioned as NT 5.0.<ref>{{cite web|url=https://pc.net/helpcenter/answers/what_nt_stands_for|title=What does the "NT" stand for in Windows NT?|date=October 20, 2006|access-date=August 13, 2022|author=Per Christensson}}</ref>