diff --git a/doc/release-notes/rl-2505.section.md b/doc/release-notes/rl-2505.section.md
index 8a395089426d..73bfea0370de 100644
--- a/doc/release-notes/rl-2505.section.md
+++ b/doc/release-notes/rl-2505.section.md
@@ -28,6 +28,10 @@
   - Applications linked against different Mesa versions than installed on the system should now work correctly going forward (however, applications against older Mesa, e.g. from Nixpkgs releases before 25.05, remain broken)
   - Packages that used to depend on Mesa for libgbm or libdri should use `libgbm` or `dri-pkgconfig-stub` as inputs, respectively
 
+- GNU Taler has been updated to version 1.0.
+  This marks a significant milestone as the GNU Taler payment system is now available in Swiss Francs for individuals and businesses in Switzerland.
+  For more details, see the [upstream release notes](https://www.taler.net/en/news/2025-01.html).
+
 - OpenSSH has been updated from 9.9p2 to 10.0p2, dropping support for DSA keys and adding a new `ssh-auth` binary to handle user authentication in a different address space from unauthenticated sessions. See the [full changelog](https://www.openwall.com/lists/oss-security/2025/04/09/1) for more details.
 
 - Emacs has been updated to 30.1.