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Re: [paho-dev] Status of MQTT-S spec

Hi Mike,

I'm working on the licensing of the MQTT-S spec with our friendly IBM lawyer.  In fact, he owes me a response just now, so I'll prod him for one.


On 06/17/2013 10:37 PM, Mike Milinkovich wrote:

Hmmm. That is unfortunate. Did someone lose the source code to the PDF file for the MQTT-S spec? (sort of joking)


Is Paho implementing MQTT-S? Because if it is, this situation does require some immediate attention.


Mike Milinkovich




From: Nicholas O'Leary [mailto:nick.oleary@xxxxxxxxx]
Sent: June-17-13 5:19 PM
To: Mike Milinkovich; General development discussions for paho project
Subject: Re: [paho-dev] Status of MQTT-S spec


Hi Mike,


the intention is for MQTT-S to be available under exactly the same terms as MQTT. The fact the document doesn't contain the appropriate text is, as you say, an oversight.


This gets raised with some regularity, but it hasn't been resolved yet.






On 17 June 2013 22:10, Mike Milinkovich <mike.milinkovich@xxxxxxxxxxx> wrote:

Someone was asking about the MQTT-S specification, and I noticed that its licensing seems to be unclear.


[1] says “Like MQTT, the detailed specification of MQTT-S is open and available at


But the spec document[2] on simply says “© Copyright IBM Corporation 2008, 2011. All rights reserved.”  I’ve looked through that document as carefully as I can, and I do not see any license grant similar to what is in the MQTT spec[3].


Can anyone clarify for me what the status is on the ability on anyone other than IBM to implement MQTT-S? Is this some oversight that can be easily fixed?








Mike Milinkovich

Executive Director

Eclipse Foundation


+1.613.220.3223 mobile

+1.613.224.9461 x228 office



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