--- Coro/Changes	2011/04/30 05:17:42	1.557
+++ Coro/Changes	2011/05/06 21:27:43	1.560
@@ -4,12 +4,18 @@
 TODO: channel->maxsize(newsize)?
 TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
 
+        - croak when a coro being cancelled tries to block (e.g. while
+          executing a guard block), instead of crashing or deadlocking.
+        - implement a Coro->safe_cancel method that might fail, but
+          cancels in a "safer" way if it succeeds.
 	- implement Coro->cancel in XS for a 20% speed improvement, and to
           be able to implement mutual cancellation.
         - cancelling a coro while it itself is cancelling another coro is
           now supported and working, instead of triggering an assertion.
 	- be a bit more crash-resistant when calling (buggy) on_destroy
           callbacks (best effort).
+        - move on_destroy into the slf_frame, to allow extension slf
+          functions to have destructors.
 
 5.372 Wed Feb 23 06:14:30 CET 2011
 	- apparently mingw doesn't provide a working gettimeofday, try to