Changelog: update

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
diff --git a/Changelog b/Changelog
index e6716a9..3d02e89 100644
--- a/Changelog
+++ b/Changelog
@@ -2,6 +2,8 @@
 releases are sorted from youngest to oldest.
 
 version 2.8.7
+- avcodec/motion_est: Attempt to fix "short data segment overflowed" on IA64
+- avformat/ffmdec: Check pix_fmt
 - avcodec/ttaenc: Reallocate packet if its too small
 - pgssubdec: fix subpicture output colorspace and range
 - avcodec/ac3dec: Reset SPX when switching from EAC3 to AC3