83 lines
4.2 KiB
Markdown
83 lines
4.2 KiB
Markdown
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.. title: Version 0.9 released
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.. slug: version-0-9-released
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.. date: 2010-11-15 01:04:47
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.. tags: Releases
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.. category:
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.. link:
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.. description:
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.. type: text
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-->
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This is a features release. It is probably the most significant change for
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mosquitto so far.
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The important change is the removal of the sqlite dependency, along with the
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associated pcre and sqlite3-pcre dependencies. This results in better
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performance both in terms of messages handled per second and memory usage.
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Optional support for importing existing persistent databases in sqlite3 format
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is provided, with the option compiled in by default. This will be set to not be
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compiled by default in 0.10 and then removed in 0.11.
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This release also provides support for the recently updated MQTT v3.1 spec -
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most notably offering username/password authentication support. The client
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library and clients have full v3.1 support. The broker is fully compatible with
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v3.1, but doesn't provide any mechanism for controlling username/password
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control. This will come in 0.10.
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One goal of mosquitto is to be a drop in replacement for the IBM rsmb broker.
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Another goal is to do more than rsmb :) I'm still working on the first goal,
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but this release helps with the second as mosquitto now has IPv6 support, which
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isn't supported in rsmb.
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A detailed list of changes is given below:
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* Client and message data is now stored in memory with custom routines rather
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than a sqlite database. This removes the dependencies on sqlite, pcre and
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sqlite3-pcre. It also means that the persistent database format has had to
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be reimplemented in a custom format. Optional support for importing old
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sqlite databases is provided.
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* Added IPv6 support for mosquitto and the clients.
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* Provide username and password support for the clients and client libraries.
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This is part of the new MQTT v3.1 spec.
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* The broker supports the username and password connection flags, but will not
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do anything with the username and password.
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* Python callback functions now optionally take an extra argument which will
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return the user object passed to the `Mosquitto()` constructor, or the calling
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python object itself if nothing was given to `Mosquitto()`.
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* Remove the mosquitto command line option `-i interface`.
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* Remove the mosquitto.conf "interface" variable.
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* Add support for the listener config variable (replaces the interface
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variable)
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* Add support for the `bind_address` config variable.
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* Change the port config variable behaviour to match that of rsmb (applies to
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the default listener only, can be given just once).
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* Fix QoS 2 protocol compliance - stop sending duplicate messages and handle
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timeouts correctly. Fixes bug #598290.
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* Set retain flag correctly for outgoing messages. It should only be set for
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messages sent in response to a subscribe command (ie. stale data).
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* Fix bug in returning correct CONNACK result to `on_connect` client callback.
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* Don't send client will if it is disconnected for exceeding its keepalive
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timer.
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* Fix client library unsubscribe function incorrectly sending a SUBSCRIBE
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command when it should be UNSUBSCRIBE.
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* Fix `max_inflight_messages` and `max_queued_messages` operation. These
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parameters now apply only to QoS 1 and 2 messages and are used regardless of
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the client connection state.
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* mosquitto.conf now installed to /etc/mosquitto/mosquitto.conf instead of
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/etc/mosquitto.conf. The /etc/mosquitto/ directory will be used for password
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and access control files in the future.
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* Give the compile time option of using 32-bit integers for the database IDs
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instead of 64-bit integers. This is useful where htobe64()/be64toh() are not
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available or for embedded systems for example.
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* The DUP bit is now set correctly when resending PUBREL messages.
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* A port to Windows native has been partially completed. This currently drops
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a number of features, including the ability to change configuration
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parameters and persistent storage.
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See the [download page] for the update. Debian and Ubuntu users should note
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that the package libmosquitto0-python has been renamed python-mosquitto to
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comply with Debian naming policies. The Debian packages aren't yet ready.
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[download page]: /download
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