diff --git a/doc/APIchanges b/doc/APIchanges
index 92ab57ecb8..c42b91d8c4 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil:   2011-04-18
 
 API changes, most recent first:
 
+2011-06-02 - 5ad38d - lavu 51.4.0 - av_force_cpu_flags()
+  Add av_cpu_flags() in libavutil/cpu.h.
+
 2011-06-06 - xxxxxx - lavfi 2.14.0 - AVFilterBufferRefAudioProps
   Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
   avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in