Good day!

Today we released Venus OS v3.21. It contains just one change:

• Fix MQTT issue that prevented writing negative numbers over the MQTT protocol. This bug affected systems with customer-own software, for example special control loops that run a different ESS algorithm than the standard Victron one. The bug was introduced per v3.20, last week.

Venus OS v3.20, Orion XS and more

Today released version builds on Venus OS v3.20, which was released last week. That version has multiple highlights, including full support for our new Orion XS 12/12 50A DC-DC Battery Charger as well as completely renewed Marine MFD App.

Read the v3.20 blog post for the full story.

Full change log

For the full change log, see the Venus OS entry in the firmware section on Victron Professional.

How to install this update?

For systems connected to the internet, there are two different methods:

• On the VRM Portal, go to Device List and there use the Update firmware button at the bottom.
• On the GX Device, or Remote Console go to Settings -> Firmware.

And for systems not connected to the internet:

• Use a SD-card or USB stick. The so called "off line update method".

More details in the GX Device manuals. Quick links to the relevant pages: Ekrano GX, Cerbo GX, Color Control GX and for the Venus GX.