diff --git a/libs/sofia-sip/.update b/libs/sofia-sip/.update
index ec01cf3665..beff0a40db 100644
--- a/libs/sofia-sip/.update
+++ b/libs/sofia-sip/.update
@@ -1 +1 @@
-Wed Feb 11 11:12:10 CST 2009
+Wed Feb 11 11:13:29 CST 2009
diff --git a/libs/sofia-sip/RELEASE b/libs/sofia-sip/RELEASE
index 28e0c939f4..4652cba343 100644
--- a/libs/sofia-sip/RELEASE
+++ b/libs/sofia-sip/RELEASE
@@ -25,6 +25,9 @@ API/ABI changes and versioning
 
 libsofia-sip-ua:
 - **template**: Added foobar() function (sofia-sip/foobar.h).
+- The mp_len type was changed from usize_t to unsigned.
+  The change is binary-incompatible on 64-bit platforms when compiled with
+  the configure opetion --disable-size-compat
 - This release is ABI/API compatible with applications linked against
   any 1.12.x release. However, applications built against this release won't
   work against an older library. The ABI has been tested with the nua module