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These facilities provide information about which version of Emacs is
in use.
- Command: emacs-version
-
This function returns a string describing the version of Emacs that is
running. It is useful to include this string in bug reports.
(emacs-version)
=> "GNU Emacs 20.3.5 (i486-pc-linux-gnulibc1, X toolkit)
of Sat Feb 14 1998 on psilocin.gnu.org"
Called interactively, the function prints the same information in the
echo area.
- Variable: emacs-build-time
-
The value of this variable indicates the time at which Emacs was built
at the local site. It is a list of three integers, like the value
of
current-time (see section Time of Day).
emacs-build-time
=> (13623 62065 344633)
- Variable: emacs-version
-
The value of this variable is the version of Emacs being run. It is a
string such as
"20.3.1". The last number in this string is not
really part of the Emacs release version number; it is incremented each
time you build Emacs in any given directory.
The following two variables have existed since Emacs version 19.23:
- Variable: emacs-major-version
-
The major version number of Emacs, as an integer. For Emacs version
20.3, the value is 20.
- Variable: emacs-minor-version
-
The minor version number of Emacs, as an integer. For Emacs version
20.3, the value is 3.
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