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Re: [mosquitto-dev] Working with old broker

Hi Jeff,

You can find all of the source archives at

The pre-Eclipse repository is

Version 1.2 doesn't have MQTT v3.1.1 support, but that shouldn't
matter if it is the one bridging to mosquitto 1.4.14, because that
still supports MQTT v3.1.



On 15 February 2018 at 02:25, Jeff Armstrong <jeff@xxxxxxxxxxxxxxxxx> wrote:
> Hello,
> I'm working with a 3rd party device that uses mosquitto v1.2 which I can't
> change and I'm running into some issues.
> I'm able to see some error logs that reference line numbers in the code, but
> not sure where to find the v1.2 code. It looks like github just has v1.3.x
> and up only. Can anyone point me to somewhere that has the old source code?
> The error log looks like this:
> LBS: File: loop.c, Line: 263, Function: mosquitto_main_loop, errno = 11, url
> =, port = 8883
> and during startup it shows the version as:
> mosquitto version 1.2 (build date 2017-02-24 04:01:13-0800)
> The other question I have is whether there might be expected problems with
> communication between a v1.2 broker and my broker which is v1.4.14. It
> appears from the device logs that it is bridging with my broker. I noticed
> this note in the v1.3 changelog that makes me think maybe the version
> difference is the source of my problems:
> Basic support for MQTT v3.1.1. This does not include being able to bridge to
> an MQTT v3.1.1 broker.
> Any help would be appreciated!
> Thanks,
> Jeff
> --
> Jeff Armstrong
> Software Engineer
> Greenfield Labs
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