From 5a0fd7289fca1afa932e2a6c867c9ae8f05c05f8 Mon Sep 17 00:00:00 2001
From: samcarter <sam.carter8@aol.com>
Date: Sun, 29 Mar 2026 12:20:08 +0200
Subject: [PATCH] redefine `\hyper@natlinkbreak` to avoid problems with natbib,
 see https://tug.org/pipermail/tex-live/2026-March/052345.html

---
 CHANGELOG.md                     | 4 ++++
 base/beamerbasecompatibility.sty | 1 +
 2 files changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a064e26e..5176ac83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ a major and minor version only.
 
 ## [Unreleased]
 
+### Fixed
+
+- redefine `\hyper@natlinkbreak` to avoid problems with natbib, see https://tug.org/pipermail/tex-live/2026-March/052345.html 
+
 ## [v3.77]
 
 ### NEW
diff --git a/base/beamerbasecompatibility.sty b/base/beamerbasecompatibility.sty
index 0494ef96..71fde3b6 100644
--- a/base/beamerbasecompatibility.sty
+++ b/base/beamerbasecompatibility.sty
@@ -40,6 +40,7 @@
   \def\hyper@nat@current{#1}%
 }
 \def\hyper@natlinkend{\hyper@linkend}
+\def\hyper@natlinkbreak#1#2{#1}
 
 \mode
 <all>