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Asked: 2024-01-15 05:53:48 +0800 CST

Debian package version comparing explanation

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I'm a bit confused about the Debian package version orders.

Take a look at the following two Debian package versions, how come the first is <= than the second?

0-emacs-29.1.90~202401142128~ubuntu20.04.1
0-emacs-28.3-rc1~202302201437~ubuntu20.04.1

I'm thinking that 29 > 28 so the first should be more recent, no?

package-management

1 Answers

  1. Best Answer

    See man deb-version.

    The string 0-emacs-29.1.90~202401142128~ubuntu20.04.1 parses as upstream version 0-emacs with debian revision 29.1.90~202401142128~ubuntu20.04.1.

    The debian revision starts after the rightmost dash.

    The string 0-emacs-28.3-rc1~202302201437~ubuntu20.04.1 parses as upstream version 0-emacs-28.3 and debian revision rc1~202302201437~ubuntu20.04.1.

    Hence, the second is higher.

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