--- Coro/Changes	2011/04/29 17:38:56	1.556
+++ Coro/Changes	2012/02/19 11:14:45	1.589
@@ -3,14 +3,94 @@
 TODO: should explore PerlIO::coroaio (perl leaks like hell).
 TODO: channel->maxsize(newsize)?
 TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
-TODO: cancel calling another coro that cancels ourselves => crash (CF_DELAYCANCEL?) -> canceltest
 
+	- be more aggressive about exiting like perl does - formerly,
+          exiting from the non-main thread would not execute END blocks.
+
+6.07 Fri Nov 11 21:21:48 CET 2011
+	- work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
+        - update ecb.h.
+
+6.06 Mon Aug  8 23:59:48 CEST 2011
+	- cygwin unfortunately patches the stack at runtime, so we use the pthreads
+          backend, which is an order of magnitude slower. unfortunately, cygwins
+          pthread implementation isn't very complete either, so allocate the stack
+          twice just to be sure.
+          (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
+          in its ithreaded perl - best recompile cygwin and use the 'w'indows
+          backend for much better performance. also disable ithreads for
+          even better performance...).
+
+6.05 Thu Aug  4 21:36:36 CEST 2011
+	- blush, condvar values would not be propagated from send to recv anymore
+          (reported by Chip Salzenberg).
+	- use exponential increase for the readline buffer length in
+          Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
+
+6.04  Wed Aug  3 17:15:45 CEST 2011
+	- use even more efficient and more compatible condvars for
+          compatibility to AnyEvent 6.x :)
+        - more inconsequential ecb.h updates.
+
+6.03  Wed Aug  3 11:41:30 CEST 2011
+	- change how Coro patches AnyEvent condvars for compatibility to
+          AnyEvent 6.x.
+	- update ecb.h, to no longer include <pthread.h> in case WinNT.h
+          hasn't been included.
+
+6.02  Wed Jul 13 04:35:19 CEST 2011
+	- "improve portability to Gentoo" - gentoo manages to put perl variables
+          in memory areas that are farther than 2gb apart, which the jit couldn't
+          handle and barfed. now it's just a bit slower on gentoo and similar
+          systems.
+
+6.01  Sun Jul  3 12:31:14 CEST 2011
+	- workarounds are good, but the test for whether pthreads are used
+          was not good. thisone should be better.
+        - check differently whether gcc generates cfi instructions itself.
+
+6.0   Wed Jun 29 19:43:35 CEST 2011
+	- INCOMPATIBLE CHANGE: unreferenced coro objects will now be
+          destroyed and cleaned up automatically (e.g. async { schedule }).
+        - implement a JIT compiler for part of the thread switch code,
+          which gives a 50% speed improvement on threaded perls, and
+          about 4% on non-thraeded perls (so threaded perls now finally
+          reach about half the speed of non-threaded perls).
+        - slightly modernise Coro::Intro, add section about rouse functions.
+        - avoid DEFSV and ERRSV, giving another 10% improvement
+          in thread switching.
+        - Coro::State->is_destroyed is now called is_zombie.
+        - implement a Coro->safe_cancel method that might fail, but
+          cancels in a "safer" way if it succeeds.
+        - add preliminary support for DEBUGGING perls.
+        - get rid of two hash-accesses when initialising a new Coro - this
+          speeds up coro creation by almost a factor of two.
+        - croak when a coro that is being cancelled tries to block
+          (e.g. while executing a guard block), instead of crashing or
+          deadlocking.
+        - use a more robust and also faster method to identify Coro::State
+          objects - speeds up everything a bit.
 	- implement Coro->cancel in XS for a 20% speed improvement, and to
           be able to implement mutual cancellation.
+	- speed up context switches by a percent or two by more efficiently
+          allocating context stack entries.
+        - implement Coro->join and Coro->on_destroy in XS for a speedup and
+          a reduction in memory use.
         - 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.
+        - get rid if coro refcounting - simply crash in other interpreter
+          threads by nulling the pointers on clone.
+        - simplify warn/die hook handling when loading Coro - the convoluted
+          logic seems to be no longer neccessary.
+        - use libecb instead of our own home-grown gcc hacks.
+        - document alternatives to Coro::LWP. Please use them :)
+        - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
+          sigaltstack. Really. wine suffers from it, erlang suffers from it,
+          and it's known since at least 2006.
 
 5.372 Wed Feb 23 06:14:30 CET 2011
 	- apparently mingw doesn't provide a working gettimeofday, try to