diff --git a/ChangeLog b/ChangeLog
index 46ccbc2c..62f4f9e5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-Changes in version 12.6, 10/11/2024
+Changes in version 12.6, 11/11/2024
 ===================================
 
 * CpuInfo.cpp: Correctly detect Intel Arrow Lake CPU cache
@@ -6,6 +6,7 @@ Changes in version 12.6, 10/11/2024
 * PreSieve.cpp: Increased pre-sieving from primes <= 100 to
   primes <= 163. Memory usage of pre-sieve lookup tables has been
   reduced from 210 kilobytes to 123 kilobytes.
+* PreSieve.cpp: Added AVX512 multiarch support.
 
 Changes in version 12.5, 22/10/2024
 ===================================