+ * Modified use_sort so that the option can be applied to any distribution type.
+ * We removed the MEMCACHED_BEHAVIOR_KETAMA_COMPAT_MODE added in 0.35. Instead use
+ memcached_behavior_set_distribution().
+
+0.35 Mon Nov 9 11:18:33 PST 2009
+ * Added support for by_key operations for inc/dec methods.
+ * Added mget test to memslap.
+ * Support for compatible ketama for SpyMemcached
+ * Update C++ interface.
+ * Fix for memcp
+
+0.34 Tue Oct 13 08:39:51 PDT 2009
+ * Added support for setting behavior flags on a connection pool.
+ * Don't increment server_failure_counter on normal disconnects.
+ * Added prototype for a callback based protocol parser (server side)
+ with examples so that you could let your own application speak the
+ memcached protocol
+ * Updated memcapable to test ASCII protocol.
+ * Changed behavior so that server can be removed at first sign of failure.
+ * Added memcached_server_get_last_disconnect() call
+
+0.33 Wed Sep 23 10:11:58 PDT 2009
+ * Added memcapable to test servers for binary compatibility.
+ * Updated C++ interface. Added basic support for C++ exceptions. Added
+ multiple constructors the memcached client object. The C++ interface
+ now takes parameters which are C++ types (such as std::string).
+ * Several bug fixes for binary protocol support.
+ * Fixed crashing issue with dumping from memcachd server (server internals
+ were changed without documenting change).
+
+0.32 Tue Sep 15 15:49:09 PDT 2009
+ * Change of behavior where linger is only modified for no-block and then
+ it is set to zero.
+ * Added Twitter's memcached_server_error() functions.
+ * Fix for OSX compiles in development builds.
+ * Updated C++ interface.
+ * Updated memcached_mget and memcached_mget_by_key to take a size_t
+ as a parameter instead of an unsigned int for number_of_keys.
+
+0.31 Fri Jul 10 09:02:50 PDT 2009
+ * Added support or HA via replication.
+ * malloc() removed for server key usage.
+ * Update build system.
+ * Added support for memcached_set_memory_allocators().
+ * Fixed bug in configure.ac for have_htoll.
+
+0.30 Sun May 31 17:31:52 PDT 2009
+ * Added memcachd_dump command (and framework for memdump tool).
+ * Realigned all structures to remove padding (and line up important bits for 64bit caches.
+ * Remove some of sprintf() in storage calls().
+ * Removed printf() in stat call for unknown stat member.
+ * memcached_generate_hash() function added.
+ * Added tests to make sure all hash functions are stable.
+
+0.29 Tue May 19 08:26:48 PDT 2009
+ * Fixed malloc usage to calloc for spots where we need zero filled memory.
+ * All code warnings now treated as errors.
+ * Fixes for debian packaging.
+ * Added new pooling mechanism.
+ * MEMCACHED_BEHAVIOR_NO_BLOCK no longer also sets MEMCACHED_BEHAVIOR_BUFFER_REQUESTS.
+ * Updated generic rpm.
+
+0.28 Tue Apr 14 18:56:28 PDT 2009
+ * Fixed bug in init sructure (reapplied)
+ * Fixed bug in get/set by key (nikkhils@gmail.com)
+
+0.27 Sun Mar 29 22:33:01 PDT 2009
+ * Added new UDP fire-forget mode.
+ * Reworked performance for mget() to better make use of async protocol
+ * Cleaned up execution of fetch (just one set of code now)
+ * Fixed Jenkin's for big endian hosts.
+ * Updates for memstat to determine network latency.
+ * Updates for binary protocol.
+ * Many updates to documentation.
+
+0.26 Thu Jan 29 13:05:50 PST 2009
+ * Fix for decrement on hash key
+ * Fixed assert that was catching bad memset() call in host_reset()
+ * Fix purge issue for blocked IO which has been stacked.
+
+0.25 Fri Nov 28 09:59:35 PST 2008
+ * Jenkins HASH added.
+ * Update of Murmur hash code
+ * Support explicit weights (Robey Pointer, Evan Weaver)
+ * Bugfix for ketama continuum (Robey Pointer)
+ * New behavior MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY (Robey Pointer)
+ * Don't ever call stats for weighting servers, because it is unstable.
+
+0.24 Tue Sep 16 02:59:03 PDT 2008 (never released)
+ * Cleanup compile warnings.
+ * Fix issues in partitioning by keys.
+ * Fixed "fail case" to make sure when calling memcached_clone() no
+ memcached_st is over written.
+ * New memcached_server_by_key() method for finding a server from
+ a key.
+ * memcached_server_free() was added for freeing server structures.
+
+
+0.23 Sun Sep 7 08:13:59 PDT 2008
+ * Added strings.h header for Solaris 9
+ * Solaris 64bit fix.
+ * Support for weighted Ketama from Yin Chen.
+ * Fix for Chinese
+ * Fix for 0 length key to trigger bad key.
+ * Added behaviors MEMCACHED_BEHAVIOR_SND_TIMEOUT, MEMCACHED_BEHAVIOR_RCV_TIMEOUT
+ * Support for Binary Protocol added
+
+0.22 Mon Jul 14 09:24:11 PDT 2008
+ * Fix where master key was no being checked for "bad key"
+ * Fixed bugs in stats output (thread output was wrong)
+ * Clarified MEMCACHED_BAD_KEY_PROVIDED is return for bad prefix key.
+ * Found a bug in Flags return (Jacek Ostrowski)
+ * Fixed issue with compiling on Visual Studio
+
+0.21 Fri May 23 18:34:09 PDT 2008
+ * Change of char * to const char * for all key based functions.
+ * New MEMCACHED_CALLBACK_PREFIX_KEY added. You can now create domains for
+ values.
+ * Fixed bug introducd in last version on memcp
+ * Fix for death of file io to call shutdown()
+
+0.20 Mon May 5 08:34:26 PDT 2008
+ * New consistent distribution tests.
+ * Found a memory leak when a server constantly fails.
+ * Fix in watchpoint macro
+ * Changed default timeout to 1 second for poll timeouts
+ * Wheel uses less memory/dynamic allocation for size (no longer limited to
+ 512 hosts by default.
+ * memslap memory leak fix
+ * Added Ketama distribution
+ * Fix assert.h compile problem on CentOS
+
+0.19 Wed Apr 9 09:30:53 PDT 2008
+ * Documentation fix in libmemcached.
+ * Fixed bug where sort was always occuring on hosts
+ * Logic fix in branch prediction (thanks Jay!)
+ * Read through cached support.
+ * Fixed for cas by key operation.
+ * Fix for memcached_server_st list structures to have correct count.
+ * Added callback MEMCACHED_CALLBACK_DELETE_TRIGGER
+ * Removed function call in favor of macro (aka cut out some instructions)
+
+
+0.18 Sun Mar 16 21:57:55 PDT 2008
+ * Fix plus tests for non-zero value objects and flags.
+ * MEMCACHED_HASH_MURMUR added for murmur algorithm provided.
+ * MEMCACHED_BEHAVIOR_RETRY_TIMEOUT added to keep connecting from looping
+ on timeout.
+ * gcc branch prediction optimizations
+ * Refactored entire tree to make include files cleaner
+ * Fixed leaked socket.
+
+0.17 Wed Feb 27 03:33:29 PST 2008
+ * MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT added for connect timeout in
+ non-block mode.
+ * Incompatible change in memcached_behavior_set() api. We now use a
+ uint64_t, instead of a pointer.
+ * Fix for storage of values for zero.
+ * memcached_server_cursor() function added to API for cycling through servers.
+
+0.16 Mon Feb 18 00:30:25 PST 2008
+ * Work on the UDP protocol
+ * Added get_by_key, set_by_key tests for C++ API
+ * Fix for limit_maxbytes to be 64bit in stats
+ * Added Atom Smasher test (scale baby, scale!)
+ * Servers are now sorted, meaning that servers are now ordered so that
+ clients with the same lists, will have same distribution. (Idea from
+ Ross McFarland). MEMCACHED_BEHAVIOR_SORT_HOSTS was added to enable
+ this support.
+ * Added MEMCACHED_BAD_KEY_PROVIDED error for auto, set, and get operations.
+ MEMCACHED_BEHAVIOR_VERIFY_KEY was added to enable this feature.
+ * More error messages on command line tools.
+ * Fixed bugs in memcached_cas() operator.
+ * Fix to loop through interfaces
+
+0.15 Tue Jan 29 14:55:44 PST 2008
+ * More work on the C++ API.
+ * Bug fixes around block corner cases.
+ * Slight performance increase in both read() and write().
+
+0.14 Tue Jan 22 06:21:49 PST 2008
+ * For for bug found by Evan Weaver where increment() was not returning
+ propper error of value was not found.
+ * Fix for bad null pointer on flag by Toru Maesaka.
+ * Refactor of all IO to just pass in the active server
+ * Problem configuring (PKG_CHECK_MODULES) fixed by removal of "rpath" in
+ support/libmemcached.pc.in (Thanks to Ross McFarland).
+ * Added memcached_callback_get()/set()
+ * First prototype of C++ interface
+ * Updated docs for uint16_t changes in previous release
+
+0.13 Sun Jan 13 06:51:50 PST 2008
+ * MEMCACHED_BEHAVIOR_USER_DATA added to store user pointer.
+ * Fix for failure to connect to invalidate socket.
+ * Patch from Marc Rossi to add --hash option for memcp, memrm, and memcat.
+ * Kevin's patch for fixing EOF issues during a read.
+ * Toru Maesaka patch for stats mismatch
+ * Fix for when CRC return 0
+ * Fixed uint16_t issues around flags. Turns out the documentation on the
+ protocol was wrong.
+ * Lingering socket fixes for FreeBSD.
+ * Patches from Kevin Dalley for FreeBSD 4.0
+ * Added multi delete functions.
+ * All get key returns have C style null termination
+ * If memcached_server_list_append is passed NULLs instead of pointers it
+ returns NULL.
+ * Added memcached_fetch_execute() method
+ * Found a bug where memcached_fetch() was not null terminating the result
+ value.
+ * memcached_behavior() now has the ability to set "buffering" so that
+ data is not automatically flushed.
+ * Behavior change, buffered commands now return MEMCACHED_BUFFERED
+
+0.12 Tue Dec 11 15:20:55 PST 2007
+ * Updates for consistent hashing
+ * IPV6 support
+ * Static allocation for hostname (performance)
+ * Fixed bug where in non-block mode all data might not have been sent on
+ close().
+ * Refactor of memcached_get() to use common code.
+ * Change in value fetch, MEMCACHED_END is now returned when keys are no
+ longer in the pipe.
+ * Fixed bug where key could be out of range of characters
+ * Added _by_key() methods to allow partitioning of values to particular
+ servers.
+ * MEMCACHED_DEFAILT_TIMEOUT is now set to a non -1 value.
+ * Performance improvements in get operations.
+
+0.11 Mon Nov 26 01:05:52 PST 2007
+ * Added option to memcache_behavior_set() so that poll() can be timed out.
+ * Fixed memory leak in case of using memcached_fetch_result() where no
+ value was returned.
+ * Bug fixed in memcached_connect() which would cause servers that
+ did not need to be enabled to be enabled (performance issue).
+ * Rewrote bounds checking code for get calls.
+ * "make test" now starts its own memcached servers.
+ * Added Hseih hash (MEMCACHED_HASH_HSIEH), which is showing about 7%
+ performance over standard hash.
+
+0.10 Tue Nov 20 23:22:31 PST 2007
+ * Added append binary test.
+ * Added MEMCACHED_BEHAVIOR_CACHE_LOOKUPS behavior so that you can save on
+ multiple DNS lookups.
+ * Added CAS support, though this is optional and must be enabled during
+ runtime.
+ * Added the utility memerror to create human readable error strings
+ from memcached errors (aka convert ints to strings)
+ * Fixed type in MEMCACHED_HOST_LOOKUP_FAILURE
+ * Fixed bug where hostname might not be null terminated
+ * Moved to using gethostbyname_r() on Linux to solve thread safety issue
+ * Added -rpath support for pkg-config
+ * Documentation fix for hash setting using memcached_behavior_set()
+
+0.9 Thu Nov 15 07:44:00 PST 2007
+ * fix for when no servers are definied.
+ * different buffers are now kept for different connections to
+ speed up async efforts
+ * Modified increment/decrement functions to return uint64_t values
+ * Fixed bug in cases where zero length keys were provided
+ * Thread cleanup issue in memslap
+ * No hostname lookup on reconnect
+ * Fix for flag settings (was doing hex by accident!)
+ * Support for 1.2.4 server additions "prepend" and "append" added.
+ * Added memcached_version()... not sure if I will make this public
+ or not.
+
+0.8 Mon Nov 5 10:40:41 PST 2007
+ * Adding support for CRC hash method
+ * Adding support for UNIX sockets
+ * Added additional HASHing methods of FNV1_64,FNV1A_64, FNV1_32, FNV1A_32
+ * Added pkgconfig support (PKG_CHECK_MODULES)
+ * Fixed conflict with defined type in MySQL
+ * Added memcached_result_st structure and functions to manipulate it.
+
+0.7 Tue Oct 30 09:24:05 PDT 2007
+ * Poved to poll() from select()
+ * Fixes in internal string class for allocation of large numbers of
+ strings.
+ * memcached_mget() function now sends keys as it parses them instead of
+ building strings as it goes.
+ * Propper flush now for making sure we get all IO sent even when in
+ non-block mode.
+ * Added --enable-debug rule for configure
+ * All asserts() removed (hey this is going into production!)
+
+
+0.6 Wed Oct 17 08:41:35 PDT 2007
+ * get value returns are now null terminated (request by Cal Heldenbrand)
+ * Fixed connections for more hosts then two.
+ * Rewrite of the read/write IO systems to handle different sorts of host
+ failures.
+ * Added man pages for all functions and tools
+ * Raised buffer size for readinng/writing to 16K
+ * You can now optionally set the socket size for recv/send via
+ memached_behavior_set/get.
+
+0.5 Tue Oct 9 00:22:25 PDT 2007
+ * Ruby maintainer mentioned TCP_NODELAY patch he had added. Added this to C
+ library as well. (Eric Hodel drbrain@segment7.net)
+ * Added support script for set_benchmark
+ * Updated memslap to allow testing of TCP_NODELAY
+ * Updated memslap to support --flush (aka dump memcache servers before
+ testing)
+ * Fixed bug in multiple hosts not being activated
+ * Added environmental variable MEMCACHED_SERVERS which can be used to
+ set the servers list.
+ * fixed memcached_stat method (and now memstat works)
+ * server connect now happens on demand.
+ * Help for all command line applications
+
+0.4 Wed Oct 3 10:28:50 PDT 2007
+ * Added buffered IO to write calls for keys
+ * Added buffered IO for reads
+ * memstat was broken (bad if/else on connect)
+ * New non-blocking IO (not default yet). Mucho faster
+ * Refactor of test system.
+ * memslap crash solved
+
+0.3 Mon Oct 1 06:37:52 PDT 2007
+ * Jeff Fisher <guppy@techmonkeys.org> provided a spec file
+ * Added "make rpm" around dist file
+ * Added support for Solaris
+ * Added support for DTrace
+ * Fixed read to be recv and write to be send
+ * Bug fix where memstat would core if no server was found
+ * Added memslap tool (load generator)
+ * Numerous bug fixes in library
+ * Added calls to library for creating host lists (see
+ text cases to understand how to use this).
+