diff --git a/Documentation/Books/Users/SUMMARY.md b/Documentation/Books/Users/SUMMARY.md
index ad203e1b29..63f67ae120 100644
--- a/Documentation/Books/Users/SUMMARY.md
+++ b/Documentation/Books/Users/SUMMARY.md
@@ -7,6 +7,7 @@
   * [ARM](Installing/ARM.md)
   * [Compiling](Installing/Compiling.md)
   * [Upgrading](Installing/Upgrading.md)
+    * [Incompatible changes in 2.8](Upgrading/UpgradingChanges28.md)
     * [Incompatible changes in 2.7](Upgrading/UpgradingChanges27.md)
     * [Incompatible changes in 2.6](Upgrading/UpgradingChanges26.md)
     * [Upgrading to 2.6](Upgrading/Upgrading26.md)