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@@ -2,6 +2,7 @@ Revision history for libev, a high-performance and full-featured event loop.
 
 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).