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libzmq/NEWS
Pieter Hintjens 0644256ef4 Updated NEWS for 3.2.x releases
2013-09-20 13:28:16 +02:00

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0MQ version 3.2.4 stable, released on 2013/09/20
================================================
* LIBZMQ-84 (Windows) Assertion failed: Address already in use at signaler.cpp:80
* LIBZMQ-456 ZMQ_XPUB_VERBOSE does not propagate in a tree of XPUB/XSUB devices
* LIBZMQ-532 (Windows) critical section not released on error
* LIBZMQ-569 Detect OpenPGM 5.2 system library
* LIBZMQ-563 Subscribers sometimes stopped receiving messages (aka LIBZMQ-541)
* LIBZMQ-XXX Added support for Travis Continuous Integration
* LIBZMQ-XXX Several improvements to MSVC support
0MQ version 3.2.3 stable, released on 2013/05/02
================================================
Issues addressed in this release
--------------------------------
* LIBZMQ-526 Assertion failure "Invalid argument (tcp_connecter.cpp:285)"
* LIBZMQ-446 Setting the DSCP bits by default causes CAP_NET_ADMIN error
* LIBZMQ-496 Crash on heavy socket opening/closing: Device or resource busy (mutex.hpp:90)
* LIBZMQ-462 test_connect_delay fails at test_connect_delay.cpp:80
* LIBZMQ-497 Messages getting dropped
* LIBZMQ-488 signaler.cpp leaks the win32 Event Handle
* LIBZMQ-476 zmq_disconnect has no effect for inproc sockets
* LIBZMQ-475 zmq_disconnect does not sent unsubscribe messages
0MQ version 3.2.2 stable, released on 2012/11/23
================================================
Issues addressed in this release
--------------------------------
* LIBZMQ-384 No meta data for ZMQ_EVENT_DISCONNECTED monitor event
* LIBZMQ-414 Error in ARM/Thumb2 assembly (atomic_ptr.hpp)
* LIBZMQ-417 zmq_assert (!incomplete_in) in session_base.cpp 228
* LIBZMQ-447 socket_base_t::recv() packet loss and memory leak at high receiving rate
* LIBZMQ-448 Builds fail on older versions of GCC
* LIBZMQ-449 Builds fail on AIX
* LIBZMQ-450 lt-test_monitor: fails with assertion at test_monitor.cpp:81
* LIBZMQ-451 ZMQ_ROUTER_MANDATORY blocks forever
* LIBZMQ-452 test_connect_delay.cpp:175:12: error: 'sleep' was not declared in this scope
* LIBZMQ-458 lt-test_router_mandatory fails with assertion at test_router_mandatory.cpp:53
* LIBZMQ-459 Assertion failed: encoder (stream_engine.cpp:266
* LIBZMQ-464 PUB socket with HWM set leaks memory
* LIBZMQ-465 PUB/SUB results in 80-90% of CPU load
* LIBZMQ-468 ZMQ_XPUB_VERBOSE & unsubscribe
* LIBZMQ-472 Segfault in zmq_poll in REQ to ROUTER dialog
0MQ version 3.2.1 (RC2), released on 2012/10/15
===============================================
Issues addressed in this release
--------------------------------
* Fixed issue xxx - handle insufficient resources on accept() properly.
* Fixed issue 443 - added ZMQ_XPUB_VERBOSE setsocket option.
* Fixed issue 433 - ZeroMQ died on receiving EPIPE
* Fixed issue 423 - test_pair_tcp hangs
* Fixed issue 416 - socket_base: fix 'va_list' has not been declared error
* Fixed issue 409 - Pub-sub interoperability between 2.x and 3.x.
* Fixed issue 404 - zmq_term can not safely be re-entered with pgm transport
* Fixed issue 399 - zmq_ctx_set_monitor callback is not works properly
* Fixed issue 393 - libzmq does not build on Android (socklen_t signed comparison)
* Fixed issue 392 - Interaction with pyzmq on Android
* Fixed issue 389 - Assertion failure in mtrie.cpp:317
* Fixed issue 388 - tests/test_monitor.cpp has no newline at EOF (causes compile error)
* Fixed issue 387 - "sa_family_t sa_family;" in pgm_socket.cpp is unused variable
* Fixed issue 385 - Rework ZMQ_FAIL_UNROUTABLE socket option to actually work
* Fixed issue 382 - Current libzmq doesn't compile on Android NDK
* Fixed issue 377 - ZeroMQ will not build on Windows with OpenPGM
* Fixed issue 375 - error: unused variable 'sa_family'
* Fixed issue 373 - Unable to build libzmq/zeromq3.x on AIX7
* Fixed issue 372 - Unable to build libzmq/zeromq3.x on HPUX 11iv3
* Fixed issue 371 - Unable to build libzmq/zeromq3.x on RHEL5/SLES10
* Fixed issue 329 - wsa_error_to_errno() calls abort() on WSAEACCES
* Fixed issue 309 - Assertion failed: options.recv_identity (socket_base.cpp:864)
* Fixed issue 211 - Assertion failed: msg_->flags & ZMQ_MSG_MORE (rep.cpp:81)
API changes
-----------
* zmq_device () deprecated and replaced by zmq_proxy ().
* zmq_ctx_set_monitor () replaced by zmq_socket_monitor ().
* ZMQ_ROUTER_BEHAVIOR/ZMQ_FAIL_UNROUTABLE renamed experimentally to
ZMQ_ROUTER_MANDATORY.
0MQ version 3.2.0 (RC1), released on 2012/06/05
===============================================
Bug fixes
---------
* Fixed issue 264 - Potential bug with linger, messages dropped during
socket close.
* Fixed issue 293 - libzmq doesn't follow the ZMTP/1.0 spec (did not
set reserved bits to 0).
* Fixed issue 303 - Assertion failure in pgm_sender.cpp:102.
* Fixed issue 320 - Assertion failure in connect_session.cpp:96 when
connecting epgm to an invalid endpoint.
* Fixed issue 325 - Assertion failure in xrep.cpp:93, when two sockets
connect using the same identity.
* Fixed issue 327 - Assertion failure in mtrie.cpp:246, when
unsubscribing from channel.
* Fixed issue 346 - Assertion failure in signaler.cpp:155, when using a
closed socket.
* Fixed issue 328 - unsubscribe wrongly clears multiple subscriptions.
* Fixed issue 330 - IPC listener does not remove unix domain stream file
when terminated.
* Fixed issue 334 - Memory leak in session_base.cpp:59.
* Fixed issue 369 - ROUTER cannot close/reopen while DEALER connected.
Operating systems
-----------------
* Fixed issue 301 - HPUX 11iv2 - build fails, CLOCK_MONOTONIC
undefined.
* Fixed issue 324 - OS/X - build fails, ECANTROUTE undefined.
* Fixed issue 368 - Solaris / Sun C++ - build fails, no insert method
in multimap classes.
* Fixed issue 366 - Windows - ports not freed after crash.
* Fixed issue 355 - Windows - build fails, MSVC solution file is out of
date.
* Fixed issue 331 - FreeBSD 8 and 9 - getaddrinfo fails with
EAI_BADFLAGS on AI_V4MAPPED flag.
* Fixed issue xxx - Added support for WinCE.
Performance
-----------
* Fixed issue xxx - Implemented atomic operations for ARMv7a (runs 15-20% faster).
API changes
-----------
* Fixed issue 337 - Cleaned-up context API:
zmq_ctx_new() - create new context (will deprecate zmq_init)
zmq_ctx_destroy() - destroy context (will deprecate zmq_term)
zmq_ctx_set() - set context property
zmq_ctx_get() - get context property
* Fixed issue xxx - Cleaned-up message API:
zmq_msg_send() - send a message (will deprecate zmq_sendmsg)
zmq_msg_recv() - receive a message (will deprecate zmq_recvmsg)
zmq_msg_more() - indicate whether this is final part of message
zmq_msg_get() - get message property
zmq_msg_set() - set message property
* Fixed issue xxx - Added context monitoring API:
zmq_ctx_set_monitor() - configure monitor callback.
* Fixed issue xxx - Added unbind/disconnect API:
zmq_unbind() - unbind socket.
zmq_disconnect() - disconnect socket.
* Fixed issue xxx - Added ZMQ_TCP_ACCEPT_FILTER setsockopt() for listening TCP sockets.
* Fixed issue 336 - Removed sys: transport.
* Fixed issue 333 - Added zmq_device function back to API (was removed
in 3.0).
* Fixed issue 340 - Add support for MAX_SOCKETS to new context API.
OMQ version 3.1.0 (beta), released on 2011/12/18
================================================
General information
-------------------
Based on community consensus, the 0MQ 3.1.x release reverts a number of
features introduced in version 3.0. The major reason for these changes is
improving backward compatibility with 0MQ 2.1.x.
Development of the 0MQ 3.0.x series will be discontinued, and users are
encouraged to upgrade to 3.1.
The 0MQ 3.1.x releases use ABI version 3.
Reverted functionality
----------------------
The following functionality present in 0MQ 3.0 has been reverted:
* Wire format changes. The 0MQ 3.1 wire format is identical to that of 0MQ
2.1.
* LABELs and COMMANDs have been removed.
* Explicit identies are re-introduced, however they can be used only for
explicit routing, not for durable sockets.
* The ZMQ_ROUTER and ZMQ_DEALER socket types are once again aliases for
ZMQ_XREQ and ZMQ_XREP.
New functionality
-----------------
* The zmq_getmsgopt() function has been introduced.
* Experimental IPv6 support has been introduced. This is disabled by
default, see the zmq_setsockopt() documentation for enabling it.
Other changes
-------------
* The default HWM for all socket types has been set to 1000.
* Many bug fixes.
Building
--------
* The dependency on libuuid has been removed.
* Support for building on Android, and with MSVC 10 has been added.
0MQ version 3.0.0 (alpha), released on 2011/07/12
=================================================
New functionality
-----------------
* A zmq_ctx_set_monitor() API to register a callback / event sink for changes
in socket state.
* POSIX-compliant zmq_send and zmq_recv introduced (uses raw buffer
instead of message object).
* ZMQ_MULTICAST_HOPS socket option added. Sets the appropriate field in
IP headers of PGM packets.
* Subscription forwarding. Instead of filtering on consumer, the
subscription is moved as far as possible towards the publisher and
filtering is done there.
* ZMQ_XPUB, ZMQ_XSUB introduced. Allow to create subscription-
forwarding-friendly intermediate devices.
* Add sockopt ZMQ_RCVTIMEO/ZMQ_SNDTIMEO. Allow to set timeout for
blocking send/recv calls.
* A new LABEL flag was added to the wire format. The flag distinguishes
message parts used by 0MQ (labels) from user payload message parts.
* There is a new wire format for the REQ/REP pattern. First, the empty
bottom-of-the-stack message part is not needed any more, the LABEL
flag is used instead. Secondly, peer IDs are 32-bit integers rather
than 17-byte UUIDs.
* The REQ socket now drops duplicate replies.
* Outstanding requests & replies associated with a client are dropped
when the clients dies. This is a performance optimisation.
* Introduced ZMQ_ROUTER and ZMQ_DEALER sockets. These mimic the
functionality of ZMQ_ROUTER and ZMQ_DEALER in 0MQ/2.1.x. Guarantees
backward compatibility for exsiting code.
* Removed dependency on OS socketpair buffer size. No more asserts in
mailbox.cpp because of low system limit of sockepair buffer size.
API improvements
----------------
* Obsolete constants ZMQ_UPSTREAM and ZMQ_DOWNSTREAM removed. Use
ZMQ_PUSH and ZMQ_PULL instead.
* Timeout in zmq_poll is in milliseconds instead of microseconds. This
makes zmq_poll() compliant with POSIX poll()
* ZMQ_MCAST_LOOP removed. There's no support for multicast over
loopback any more. Use IPC or TCP isntead.
* zmq_send/zmq_recv was renamed zmq_sendmsg/zmq_recvmsg.
* ZMQ_RECOVERY_IVL and ZMQ_RECOVERY_IVL_MSEC reconciled. The new option
is named ZMQ_RECOVERY_IVL and the unit is milliseconds.
* Option types changed. Most of the numeric types are now represented
as 'int'.
* ZMQ_HWM split into ZMQ_SNDHWM and ZMQ_RCVHWM. This makes it possible
to control message flow separately for each direction.
* ZMQ_NOBLOCK renamed ZMQ_DONTWAIT. That makes it POSIX-compliant.
Less is More
------------
* Pre-built devices and zmq_device() removed. Should be made available
as a separate project(s).
* ZMQ_SWAP removed. Writing data to disk should be done on top of 0MQ,
on inside it.
* C++ binding removed from the core. Now it's a separate project, same
as any other binding.
Bug fixes
---------
* Many.
Building
--------
* Make pkg-config dependency conditional.
Distribution
------------
* Removed Debian packaging, which is now available at packages.debian.org
or via apt-get.
Older versions
==============
* See NEWS in ZeroMQ 2.1.x repository at http://github.com/zeromq/zeromq2-1.
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