The #guix channel is hosted by Libera Chat.

* README (Contact): Update network name.
* ROADMAP: Likewise.
* doc/contributing.texi (Contributing): Likewise.
* doc/guix.texi (After System Installation): Likewise.

README

@@ -62,7 +62,7 @@ Please email <help-guix@gnu.org> for questions and <bug-guix@gnu.org> for bug
 reports; email <gnu-system-discuss@gnu.org> for general issues regarding the
 GNU system.
 
-Join #guix on irc.freenode.net.
+Join #guix on irc.libera.chat.
 
 * Guix & Nix
 

ROADMAP

@@ -23,7 +23,7 @@ There will be a few 0.x releases by then to give the new features more
 exposure and testing.
 
 You're welcome to discuss this road map on guix-devel@gnu.org or #guix on
-Freenode!
+the Libera Chat IRC network!
 
 * Features scheduled for 1.0
 

doc/contributing.texi

@@ -3,7 +3,7 @@
 
 This project is a cooperative effort, and we need your help to make it
 grow!  Please get in touch with us on @email{guix-devel@@gnu.org} and
-@code{#guix} on the Freenode IRC network.  We welcome ideas, bug
+@code{#guix} on the Libera Chat IRC network.  We welcome ideas, bug
 reports, patches, and anything that may be helpful to the project.  We
 particularly welcome help on packaging (@pxref{Packaging Guidelines}).
 

doc/guix.texi

@@ -2628,7 +2628,7 @@ root's login shell, you'll need to @command{guix pull} separately.
 @end quotation
 
 Now, @pxref{Getting Started}, and
-join us on @code{#guix} on the Freenode IRC network or on
+join us on @code{#guix} on the Libera Chat IRC network or on
 @email{guix-devel@@gnu.org} to share your experience!