Web page update.
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<!--
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.. title: Download
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.. slug: download
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.. date: 2019-02-28 17:01:00 UTC
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.. date: 2019-04-17 21:57:00 UTC+1
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.. tags: tag
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.. category: category
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.. link: link
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@ -11,7 +11,7 @@
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# Source
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* [mosquitto-1.5.8.tar.gz](https://mosquitto.org/files/source/mosquitto-1.5.8.tar.gz) (319kB) ([GPG signature](https://mosquitto.org/files/source/mosquitto-1.5.8.tar.gz.asc))
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* [mosquitto-1.6.0.tar.gz](https://mosquitto.org/files/source/mosquitto-1.6.0.tar.gz) (319kB) ([GPG signature](https://mosquitto.org/files/source/mosquitto-1.6.0.tar.gz.asc))
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* [Git source code repository](https://github.com/eclipse/mosquitto) (github.com)
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Older downloads are available at [https://mosquitto.org/files/](../files/)
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@ -24,8 +24,8 @@ distributions.
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## Windows
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* [mosquitto-1.5.8-install-windows-x64.exe](https://mosquitto.org/files/binary/win64/mosquitto-1.5.8-install-windows-x64.exe) (~360 kB) (64-bit build, Windows Vista and up, built with Visual Studio Community 2017)
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* [mosquitto-1.5.8-install-windows-x32.exe](https://mosquitto.org/files/binary/win32/mosquitto-1.5.8-install-windows-x86.exe) (~360 kB) (32-bit build, Windows Vista and up, built with Visual Studio Community 2017)
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* [mosquitto-1.6.0-install-windows-x64.exe](https://mosquitto.org/files/binary/win64/mosquitto-1.6.0-install-windows-x64.exe) (~360 kB) (64-bit build, Windows Vista and up, built with Visual Studio Community 2017)
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* [mosquitto-1.6.0-install-windows-x32.exe](https://mosquitto.org/files/binary/win32/mosquitto-1.6.0-install-windows-x86.exe) (~360 kB) (32-bit build, Windows Vista and up, built with Visual Studio Community 2017)
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See also readme-windows.txt after installing.
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154
www/posts/2019/04/version-1-6-released.md
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www/posts/2019/04/version-1-6-released.md
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<!--
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.. title: Version 1.6 released
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.. slug: version-1-6-released
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.. date: 2019-04-17 22:08:00 UTC+1
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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 feature release and represents a substantial amount of change in the
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project. Since version 1.5, the overall code line count for the broker, library
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and clients has increased by 37% to 28k. Testing has been an important focus
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for this release. The number of tests has increased from 102 to 412. The test
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coverage, whilst still needing further improvement, has increased from 56% to
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61%.
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A summary of the notable features is given below.
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# MQTT v5 support
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The big addition for this release is support for MQTT v5. This covers the
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broker, client library and client, and gives full support for the new
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specification, although not all features are accessible as they will be.
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You can quickly test out a v5 client by using `-V 5` and adding properties with
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the `-D` option, for example:
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```
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mosquitto_sub -V 5 -D connect receive-maximum 3 -D subscribe subscription-identifier 1 ...
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```
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The authentication plugin interface has been extended to allow use of the v5
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extended authentication feature.
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# Performance improvements
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A number of performance improvements have been implemented in the broker,
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including the message routing logic, topic matching, and persistence file
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reading/writing.
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More improvements are planned for the next release.
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# New client - mosquitto_rr
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`mosquitto_rr` is the "request-response" client, intended for the situation
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where you want to publish a request message and await a response. It works best
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with the MQTT v5 request-response features, but can be used with v3.1.1 servers
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if the client it is talking to knows how to respond. This tool is almost
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certainly not going to see as much use as `mosquitto_sub` or `mosquitto_pub`,
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but is a useful utility to have available.
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# Contributed features
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Some notable features have been contributed by the community.
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On the TLS front, support for ALPN allows bridges and clients to connect to
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servers that have multiple protocols on a single port. The new OCSP stapling
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support allows the status of TLS certificates to be validated. Finally, TLS
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Engine support has been added.
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Away from TLS, support for Automotive DLT logging has been added, disabled by
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default.
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# Deprecations
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The C++ wrapper library, libmosquittopp is now deprecated and will be removed
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in version 2.0. It remains largely unchanged since v1.5.
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The C library, libmosquitto, is having its interface changed for version 2.0,
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so any current function should be considered at risk. The rationale for this is
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to consolidate the changes introduced since version 1.0, in particular the
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large number of functions required to support MQTT v5, but that otherwise
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closely match existing functions.
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Support for TLS v1.0 has been dropped. Support for TLS v1.1 will be dropped in
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version 2.0.
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# Changelog
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The more detailed changelog is below, but does not include many of the
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fixes and improvements that have been made:
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## Broker features
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- Add support for MQTT v5
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- Add support for OCSP stapling.
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- Add support for ALPN on bridge TLS connections. Closes [#924].
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- Add support for Automotive DLT logging.
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- Add TLS Engine support.
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- Persistence file read/write performance improvements.
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- General performance improvements.
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- Add `max_keepalive option`, to allow a maximum keepalive value to be set for
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MQTT v5 clients only.
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- Add `bind_interface` option which allows a listener to be bound to a
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specific network interface, in a similar fashion to the `bind_address` option.
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Linux only.
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- Add improved bridge restart interval based on Decorrelated Jitter.
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- Add `dhparamfile` option, to allow DH parameters to be loaded for Ephemeral
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DH support
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- Disallow writing to $ topics where appropriate.
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- Add explicit support for TLS v1.3.
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- Drop support for TLS v1.0.
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- Improved general support for broker generated client ids. Removed libuuid
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dependency.
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- `auto_id_prefix` now defaults to 'auto-'.
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- QoS 1 and 2 flow control improvements.
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## Client library features
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- Add support for MQTT v5
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- Add `mosquitto_subscribe_multiple()` for sending subscriptions to multiple
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topics in one command.
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- Add TLS Engine support.
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- Add explicit support for TLS v1.3.
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- Drop support for TLS v1.0.
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- QoS 1 and 2 flow control improvements.
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## Client features
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- Add support for MQTT v5
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- Add `mosquitto_rr ` client, which can be used for "request-response" messaging,
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by sending a request message and awaiting a response.
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- Add TLS Engine support.
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- Add support for ALPN on TLS connections. Closes [#924].
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- Add `-D ` option for all clients to specify MQTT v5 properties.
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- Add `-E ` to `mosquitto_sub `, which causes it to exit immediately after having
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its subscriptions acknowledged. Use with `-c` to create a durable client
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session without requiring a message to be received.
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- Add `--remove-retained` to `mosquitto_sub`, which can be used to clear retained
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messages on a broker.
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- Add `--repeat` and `--repeat-delay` to `mosquitto_pub`, which can be used to
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repeat single message publishes at a regular interval.
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- -V now accepts `5`, `311`, `31`, as well as `mqttv5` etc.
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- Add explicit support for TLS v1.3.
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- Drop support for TLS v1.0.
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## Broker fixes
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- Improve error reporting when creating listeners.
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- Fix `mosquitto_passwd` crashing on corrupt password file. Closes [#1207].
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- Fix build on SmartOS due to missing IPV6_V6ONLY. Closes [#1212].
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## Client library fixes
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- Add missing `mosquitto_userdata()` function.
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## Client fixes
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- `mosquitto_pub` wouldn't always publish all messages when using `-l` and
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QoS>0. This has been fixed.
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- `mosquitto_sub` was incorrectly encoding special characters when using %j
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output format. Closes [#1220].
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[#924]: https://github.com/eclipse/mosquitto/issues/924
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[#1208]: https://github.com/eclipse/mosquitto/issues/1208
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[#1212]: https://github.com/eclipse/mosquitto/issues/1212
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[#1220]: https://github.com/eclipse/mosquitto/issues/1220
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