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-rw-r--r--doc/guix.texi7
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index c91bc2021d..b77335d2c2 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -537,9 +537,10 @@ multiple-output package.
@itemx -r @var{package}
Remove @var{package}.
-@item --upgrade=@var{regexp}
-@itemx -u @var{regexp}
-Upgrade all the installed packages matching @var{regexp}.
+@item --upgrade[=@var{regexp}]
+@itemx -u [@var{regexp}]
+Upgrade all the installed packages. When @var{regexp} is specified, upgrade
+only installed packages whose name matches @var{regexp}.
Note that this upgrades package to the latest version of packages found
in the distribution currently installed. To update your distribution,