What version?

[Simon Wright]

Looking at package-list-packages, I see

Package ada-mode is installed.

     Status: Installed in ‘ada-mode-7.3beta1.0.20220711.185004/’. Delete
    Version: 7.3beta1.0.20220711.185004
     Commit: a4ecb2e2e2416cf6066d9a57d9823b257d0f389e
    Summary: major-mode for editing Ada sources
   Requires: uniquify-files-1.0.1, wisi-4.0beta, emacs-25.3
    Website: http://www.nongnu.org/ada-mode/
   Keywords: languages ada 
 Maintainer: Stephen Leake <stephen_leake@stephe-leake.org>
     Author: Stephen Leake <stephen_leake@stephe-leake.org>
Other versions: 7.2.1 (installed), 7.3.1 (gnu).

Emacs Ada mode version 7.1.3

and M-x ada-mode-version says 7.3.beta.

So, (a) what is "7.3.1 (gnu)", (b) what is "Emacs Ada mode version 7.1.3"?