# Updating system libraries used by emoncms **URL:** \ **Category:** Installation\ **Created:** [15 January 2018 20:42 UTC](https://community.openenergymonitor.org/t/updating-system-libraries-used-by-emoncms/6274 "2018-01-15T20:42:23Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![pb66](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/pb66/32/27_2.png) [@pb66](https://community.openenergymonitor.org/u/pb66)\ **Post date:** [15 January 2018 21:18 UTC](https://community.openenergymonitor.org/t/updating-system-libraries-used-by-emoncms/6274/3 "2018-01-15T21:18:31Z")
> [@Raspbian Stretch](https://community.openenergymonitor.org/t/raspbian-stretch/5096/56): > > Not helped by the GitHub documentation telling you to use the Alpha! Indeed. Having just read through it again, I also notice that the MQTT enable/install guide assumes an existing Mosquitto server (or similar?) is installed, installing Mosquitto itself doesn’t seem to be documented, except for in the [emonSD build guide within the emonPi repo](https://github.com/openenergymonitor/emonpi/blob/master/docs/SD-card-build.md#install-mosquitto-mqtt) perhaps. However that guide is specific to “Jessie” not “Stretch” and it not only specifies the 3yr old mosquitto-alpha extension, but also, in contrast, to install the cutting edge mosquitto package direct from the Mosquitto repos rather than using the Debian repo packages. As discussed in another thread > [@Mosquitto issues and Stretch (DietPi)](https://community.openenergymonitor.org/t/mosquitto-issues-and-stretch-dietpi/6164/6): > > The Debian repo’s are always behind due to extensive testing etc. Some time ago when the Debian repo’s were trailing with 3.1 and 3.1.1 was the actual version everyone wanted, many images (including the emonSD) started using the [Mosquitto.org](http://Mosquitto.org) repo’s directly and I suspect, simply haven’t switched back. There will always be leading edge releases for almost all softwares that take time to filter through to the “stable” branch of the Debian repo’s, so unless there is a specific post 1.4.10 feature… --- _[View the full topic](https://community.openenergymonitor.org/t/updating-system-libraries-used-by-emoncms/6274)._