1 files changed, 1 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index ad4392aa8c..7417fb0824 100644
--- a/NEWS
+++ b/NEWS
@@ -160,6 +160,7 @@ with all sufficient information, see the ChangeLog file.
     * incompatible changes:
       * Thread#join no longer allows to be used from trap handler. Now it raises
         ThreadError.
+      * Thread#join raises ThreadError if target therad is a current thread.
 
   * Time
     * change return value: