--- IO-AIO/Changes	2006/10/24 00:27:20	1.81
+++ IO-AIO/Changes	2007/12/02 20:54:33	1.134
@@ -1,24 +1,120 @@
 Revision history for IO::AIO
 
 TODO: better autoconf.pm that can return LIBS etc.
-TODO: use feeder for aio_scandir.
-TODO: -lock/unlock, +callback/etc.
-
-2.0
+TODO: aio_cptree/mvtree
+TODO: reduce condvar fairness: schedule hot-cache-threads first?
+TODO: fix setsig
+TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
+
+2.6
+	- added aio_sync.
+
+2.51 Sat Oct  6 16:04:54 CEST 2007
+	- perlio isn't generally threadsafe, so aio_close could not work reliably.
+          aio_close now tries a safe hack that might not be that asynchronous
+          (see the manpage for details).
+        - discard callback return values as to not grow the stack endlessly
+          when poll_cb handles many requests without returning.
+        - minor code cleanups.
+
+2.5  Thu Oct  4 14:49:08 CEST 2007
+	- replaced _fd2fh with faster xs code.
+        - aio_close will now try to do "the right thing" and thus might
+          work sensibly for the very first time.
+
+2.41 Mon Sep 24 21:28:21 CEST 2007
+	- after fork, invest some work to make sure that the poll_fileno
+          stays stable (by dup2'ing the new fd over the old one), to make
+          it easier for programs/libs that don't control their forking
+          behaviour and cannot recreate their watchers.
+
+2.4  Sun Aug  5 18:44:22 CEST 2007
+        - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
+          successfully demonstrated that you can block on futimes...).
+        - allow undef as fileoffset for aio_read/write and use read/write(2)
+          internally (useful for sockets or O_APPEND handles).
+        - allow undef for length in aio_write.
+        - negative dataoffsets work as expected now in aio_read/aio_write.
+        - use NV instead of UV for 32 bit perls and file offsets, as NVs
+          have a larger range then.
+	- shared code between BDB and IO::AIO.
+        - aio_busy was completely broken. now fixed.
+        - readahead emulation now returns something.
+        - correctly set errno to ENOSYS on unimplemented functions
+          (should never happen, though).
+        - large changes to make it partially compile and run on win32,
+          but win32 lacks too much functionality, and perl overrides way
+          too many functions with crashing versions.
+
+2.33 Tue Jan 23 23:55:41 CET 2007
+	- fix install path (Andreas J. Koenig).
+
+2.32 Mon Jan 22 16:56:23 CET 2007
+	- added aio_rmtree.
+        - wow, aio_mkdir was missing.
+        - aio_load did return undef on error, not -1.
+        - use prefixexp not prefix in autoconf.pm
+          (suggested by ... rt.cpan.org unreachable).
+        - avoid installing autoconf.pm.
+
+2.31 Sat Jan  6 03:46:02 CET 2007
+	- added aio_load.
+
+2.3  Sat Dec 23 05:48:07 CET 2006
+	- fix off-by-one bug in aio_read, causing memory corruption
+          or crashes.
+
+2.21  Fri Dec 22 05:03:38 CET 2006
+	- minor doc updates.
+	- minor cleanups.
+        - IO::AIO::poll returns request count.
+        - undocumented and unfinished async-signal-reporting.
+
+2.2  Tue Oct 31 00:31:00 CET 2006
+	- minor doc updates.
+        - added aio_readlink.
+        - properly zero-terminate aio_read buffer.
+        - fix aio_read/write with nonzero dataoffset.
+        - reduced size of aio request structure.
+        - better diagnostics when pathnames etc. are not byte-encoded;
+          do not leak request in that case, either.
+
+2.1  Sun Oct 29 02:01:57 CET 2006
+        - INCOMPATIBLE CHANGE: replace IO::AIO::poll_some by
+          IO::AIO::max_poll_reqs and IO::AIO::max_poll_time.
+	- fix a bug in aio_move where it would fail everytime
+          it would have to copy files manually.
+	- doc updates.
+	- start threads only on (very low) demand.
+        - end superfluous threads automatically after 10s idling.
+        - add IO::AIO::max_idle to control this.
+	- some tuning applied to random places.
+        - add aio_mknod.
+
+2.0  Thu Oct 26 18:27:58 CEST 2006
+	- minor incompatibility: max_outstanding semantics have changed.
+	- major rewrite, consider all functionality EXPERIMENTAL.
         - aio requests can be cancelled.
         - callbacks can be (re-)set later.
-        - add aio_group: aio requests can be grouped.
-        - implement generator interface for groups.
+        - aio requests can choose between 9 priorities.
+        - add aio_group: aio requests can be grouped
+          into composite requests.
+        - generator interface for groups.
+        - add IO::AIO::poll_some.
         - major documentation improvements.
         - very minor bugfixes.
         - add aio_nop for dummy requests.
-        - add aio_sleep mainly for benchmarking and debugging.
-        - deprecated max_outstanding.
+        - add aio_busy mainly for benchmarking and debugging.
         - use "fast" mutexes on linux.
         - use dynamic (and larger) buffers instead of
           putting them onto the stack.
         - optimise x86 and amd64 a bit.
         - better error checking when ENOMEM.
+        - hopefully fix mem and dirp leaks on fork.
+        - warn about broken perl malloc.
+        - compiles on cygwin (but pread is broken on cygwin
+          which is not detected by autoconf, so you have to
+          edit autoconf/config.h yourself to enable emulation).
 
 1.8  Sat Jun 24 22:20:44 CEST 2006
 	- add and/or document aio_rename, aio_link, aio_symlink and aio_move.
@@ -62,7 +158,7 @@
         - abort when the configure script fails.
 
 1.4  Wed Aug 17 08:07:27 CEST 2005
-	- forget to recreate the pipe after forking, this could cause
+	- forgot to recreate the pipe after forking, this could cause
           deadlocks.
 
 1.3  Wed Aug 17 07:25:54 CEST 2005