--- libev/Changes	2010/03/16 20:39:29	1.170
+++ libev/Changes	2010/03/16 20:58:53	1.171
@@ -2,6 +2,7 @@
 
 TODO: ABI??? API????? Changes???
 TODO: win32 write() to socket for signal handling
+	- "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
 	- ev_embed_stop did not correctly stop the watcher (very good
           testcase by Vladimir Timofeev).
 	- applied win32 fixes by Michael Lenaghan (also James Mansion).