diff --git a/annotations/changelog b/annotations/changelog
index f6b5f3c1..cb273c76 100644
--- a/annotations/changelog
+++ b/annotations/changelog
@@ -1,9 +1,15 @@
-C++-annotations (12.4.0 WIP)
+C++-annotations (12.4.0)
 
-  * [WIP] Added the multi-index index operator, available since c++-23
+  * Added the multi-index index operator, available since c++-23.
 
-  * Typo corrections
+  * Covered std::byte and an alternative implementation.
 
+  * Updated the description of how to implement class constructors that may
+    throw exceptions.
+
+  * Typo corrections.
+
+ -- Frank B. Brokken <f.b.brokken@rug.nl>  Tue, 15 Aug 2023 09:39:01 -0700
 
 C++-annotations (12.3.1)
 
diff --git a/annotations/yo/whatsnew.yo b/annotations/yo/whatsnew.yo
index 83a820a4..70f61cc1 100644
--- a/annotations/yo/whatsnew.yo
+++ b/annotations/yo/whatsnew.yo
@@ -6,7 +6,9 @@ and entries referring to older releases are removed.
     it() Version 12.4.0 adds a section about the tt(std::byte) type
         (cf. chapter ref(FirstImpression)), offers an alternative
         implementation (cf. section ref(BYTE)), and covers the definition of
-        multi-argument index operators (chapter ref(OVERLOADING)).
+        multi-argument index operators (chapter ref(OVERLOADING)). The
+        description of how to implement class constructors that may throw
+        exceptions was updated (cf. section ref(CONSEXCEPTIONS)).
     it() Version 12.3.0 updates and reorganizes the coverage of the generic
         algorithms, fixes many typos and unclarities in the Annotations' text,
         removed superfluous sections since C++20, and adds an overview of