diff --git a/doc/MUG.md b/doc/MUG.md
index 024c5c3..58d1791 100644
--- a/doc/MUG.md
+++ b/doc/MUG.md
@@ -822,3 +822,5 @@ gdal_translate utility, these options are passed using the –oo Key=Value synta
 * Add support for signed 8 bit integer
 2024-06-30
 * Add mrf-in-tar, acting as a single file MRF
+2024-09-10
+* QB3 encoding using faster mode when libQB3 supports it and QUALITY setting is under 5