Re: Understanding versioning.

On Mon, 07 Nov 2011 00:38:32 +0700, Sthu Deus wrote:

When I see this aptitude note:

[UPGRADE] libavcodec52 5:0.6.1+svn20101128-0.2squeeze2 -> 5:0.7.7-0.0

how do I interpret number "5:" in "5:0.6.1"?


5.6.12 Version

The version number of a package. The format is: [epoch:]upstream_version[-

The three components here are:


This is a single (generally small) unsigned integer. It may be omitted,
in which case zero is assumed. If it is omitted then the upstream_version
may not contain any colons.

It is provided to allow mistakes in the version numbers of older versions
of a package, and also a package's previous version numbering schemes, to
be left behind.

HTH :-)



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