CalVer Users
Calendar versioning has a long history, and CalVer users can be found in all areas. This ever-growing, never-complete list of project names and example versions is open to expansion.
For more details about the notation and for more detailed use cases, see the CalVer overview.
Applications
From small to large, closed and open, many systems and applications from incorporating calendar dates into their projects.
| Project | CalVer Format | Examples |
|---|---|---|
| Ubuntu | YY.0M |
4.10 - 20.04 |
| NixOS | YY.0M |
13.10 - 17.03 |
| Microsoft Windows | YY/YYYY |
95, 98, 2000 |
| OpenSCAD | YYYY.0M |
2015.03 |
| JetBrains PyCharm | YYYY.MINOR.MICRO |
2017.1.2 |
| ArchLinux | YYYY.0M.0D |
2018.03.01 |
| Unity | YYYY.MINOR.MICRO |
2019.2.2 |
| Slack for Mobile | YY.0M.MICRO |
19.08.10 |
| CockroachDB | YY.MINOR.MICRO |
19.1.0 |
| Dgraph | YY.0M.MICRO |
20.03.0, 20.03.1-beta.Jun15 |
| Spring Cloud | YYYY.MINOR.MICRO |
2020.0.0-RC2 |
| Tesla Firmware | YYYY.WW.MICRO |
2020.12.10 |
| KDE Apps | YY.0M.MICRO |
20.12.0 |
| Consensys Quorum | YY.MM.MICRO |
20.10.0 |
| Home Assistant | YYYY.MM.MICRO |
20.12.1 |
Standards
Programming language standards are conventionally named for their year
(YY/YYYY), and comprise some of the oldest notable usages of
calendar versioning.
| Project | CalVer Format | Examples |
|---|---|---|
| Ada | YY/YYYY |
83, 95, 2012 |
| ALGOL | YY |
58, 60, 68 |
| C | YY |
89, 99, 11 |
| C++ | YY |
98, 03, 11, 14, 17 |
| Fortran | YY/YYYY |
66, 77, 90, 95, 2003, 2008 |
| ECMAScript (aka JavaScript) | YYYY |
2015, 2020 |
| Python manylinux | YYYY |
2010 ("backwards compatible to") |
Libraries
CalVer software libraries allow developers to evaluate their software freshness with just a glance at the dependency list.
| Project | CalVer Format | Examples |
|---|---|---|
| Boltons | YY.MINOR.MICRO |
17.2.0 |
| Twisted | YY.MM.MICRO |
16.1.1 |
| certifi | YYYY.MM.DD |
2016.2.28 |
| Teradata | YY.MM.MINOR.MICRO |
15.10.0.16 |
| pytz | YYYY.MM |
2016.4 |
| attrs | YY.MINOR.MICRO |
17.4.0 |
Utilities
System administrators appreciate a tool with a proper version.
| Project | CalVer Format | Examples |
|---|---|---|
| pip (details) | YY.MINOR.MICRO |
19.2.3 |
| youtube-dl | YYYY.0M.0D.MICRO |
2016.06.19.1 |
| fusefs-ntfs | YYYY.MM.DD_MICRO |
2016.2.22_1 |
| black | YY.MM.MICRO |
18.3a0 |
Other
If you know of a CalVer usage that does not fit into these categories, please submit it here.