is a real number which gives the current Wolfram Language kernel version number, and increases in successive versions.
$VersionNumber
is a real number which gives the current Wolfram Language kernel version number, and increases in successive versions.
Details
- To find out if you are running under Version 11 or above, you can use the test TrueQ [$VersionNumber≥11.0].
- A version with a particular number is typically derived from the same source code on all computer systems.
Examples
Basic Examples (2)
Show the version number:
Define a function that uses a newer function in newer versions:
Tech Notes
Related Guides
History
Introduced in 1991 (2.0)
Text
Wolfram Research (1991), $VersionNumber, Wolfram Language function, https://reference.wolfram.com/language/ref/$VersionNumber.html.
CMS
Wolfram Language. 1991. "$VersionNumber." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$VersionNumber.html.
APA
Wolfram Language. (1991). $VersionNumber. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$VersionNumber.html
BibTeX
@misc{reference.wolfram_2025_$versionnumber, author="Wolfram Research", title="{$VersionNumber}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/$VersionNumber.html}", note=[Accessed: 09-January-2026]}
BibLaTeX
@online{reference.wolfram_2025_$versionnumber, organization={Wolfram Research}, title={$VersionNumber}, year={1991}, url={https://reference.wolfram.com/language/ref/$VersionNumber.html}, note=[Accessed: 09-January-2026]}