---
name: "AptPkg::Version"
section: "3pm"
platform: "linux"
package: "libapt-pkg-perl"
version: "0.1.42"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/AptPkg::Version"
---

# AptPkg::Version(3pm)

APT package versioning class

## NAME

AptPkg::Version - APT package versioning class

## SYNOPSIS

use AptPkg::Version;

## DESCRIPTION

The AptPkg::Version module provides an interface to **APT**'s package version handling.

### AptPkg::Version

The AptPkg::Version package implements the **APT** pkgVersioningSystem class.

An instance of the AptPkg::Version class may be fetched using the `"versioning"` method from an AptPkg::System object.

The following methods are implemented:

- label

  Return the description of the versioning system, for example:

  ```
      Standard .deb
  ```

  for Debian systems.

- compare(*A*, *B*)

  Compare package version *A* with *B*, returning a negative value if *A* is an earlier version than *B*, zero if the same or a positive value if *A* is later.

- rel\_compare(*A*, *B*)

  Compare distribution release numbers.

- check\_dep(*PKG*, *OP*, *DEP*)

  Check that the package version *PKG* satisfies the relation *OP* to the dependency version *DEP*.

  The relation *OP* is specified in the Debian syntax regardless of the versioning system:

  ```
      <<  strictly earlier
      <=  earlier or equal
      =   exactly equal
      >=  later or equal
      >>  strictly later
  ```

- upstream(*VER*)

  Return the upstream component of the given version string.

## SEE ALSO

[**AptPkg::Config**(3pm)](/AptPkg::Config/3pm.md), [**AptPkg::System**(3pm)](/AptPkg::System/3pm.md), [**AptPkg**(3pm)](/AptPkg/3pm.md).

## AUTHOR

Brendan O'Dea \<bod@debian.org\>