Firmware release notes
Every site-controller and charge-controller release since the first production batch in March 2021, with what changed. Updates are installed over the air, for the site controller and, through it, the charge controller, with a subscription.
View as MarkdownUpdated 2026-09-29
Site controller firmware and charge controller firmware are released together as one user-facing version. The site controller flashes the charge controller over its programming interface, so a field update needs nothing but the subscription and a connected site controller.
| Date | Version | Site controller | Charge controller | What changed |
|---|---|---|---|---|
| 2025-04-10 | 2.0.0 | 3.0.0 | 2.10.17 | Wakeup implementation according IEC 61851-23 Edition 2 |
| 2024-12-02 | 1.4.5 | 2.8.4 | 2.10.14 | Relay check disabled |
| 2024-06-12 | 1.4.4 | 2.8.3 | 2.10.7 | Wakeup implementation |
| 2024-06-12 | 1.4.3 | 2.8.2 | 2.10.7 | New firmware with EV40 wakeup |
| 2024-06-04 | 1.4.2 | 2.8.1 | 2.10.6 | New firmware with EV40 wakeup |
| 2023-02-01 | 1.4.1 | 2.8.1 | 2.10.4 | New firmware for charger Minor bug fixes |
| 2023-02-01 | 1.4.0 | 2.8.0 | 2.10.1 | Improved information from WiFi-module at boot is now send to the server at boot of the device Slot number of the charger (socket) is now send to server Live current data can now be streamed to locally connected mobile app (stream send for 1 minute) |
| 2022-12-13 | 1.3.2 | 2.6.9 | 2.9.17 | No changes |
| 2022-12-13 | 1.3.1 | 2.6.9 | 2.9.17 | No changes |
| 2022-12-13 | 1.3.0 | 2.6.9 | 2.9.17 | Improved reading of power Improved dealing with software upgrades |
| 2022-10-06 | 1.2.0 | 2.6.5 | 2.9.15 | For sites with many solar panels the detection of the current direction has been improved. Issue is fixed now. Some small changes in the charging algorithm, notably the way the charge current is increased and the use of minimal charge current. The user can now set the maximum current for the charge points. |
| 2022-08-25 | 1.1.3 | 2.6.3 | 2.9.14 | Option to set maximum charge current on a site |
| 2022-07-07 | 1.1.2 | 2.5.1 | 2.9.14 | User may accept or decline software upgrade |
| 2022-06-01 | 1.1.1 | 2.5.0 | 2.9.14 | Improved phase detection |
| 2022-04-25 | 1.1.0 | 2.4.15 | 2.9.12 | Local storage of total kWh |
| 2022-04-13 | 1.0.5 | 2.4.12 | 2.9.10 | Minimal charge current may now be configured |
| 2022-02-18 | 1.0.4 | 2.3.14 | 2.6.1 | Improved messaging of errors like board and data communication errors Fix applied for allow charging when 2 chargers are used Switch to factory defaults is now possible for more than 1 charger |
| 2021-08-17 | 1.0.3 | 2.2.32 | 2.6.1 | Added option to signal that software of charger module may be upgraden Option to select factory defaults via button clicks Improvement to read current reliably |
| 2021-04-16 | 1.0.2 | 2.2.28 | 2.6.1 | Improvement to switch plug & charge on and off Improvement to register charge module configuration Improvement for WiFi setup and return to factory defaults |
| 2021-04-16 | 1.0.1 | 2.2.26 | 2.4.1 | New feature for priorities and charging queues added Improved handling for different charge sessions Option to use other current transformer (CT) clamps |
| 2021-03-03 | 1.0.0 | 2.2.12 | 2.3.1 | First production batch |
Generated from the release ladder; wording to be reviewed. Newer 4.1.x site-controller and 1.0.x smart-meter releases of 2026 to be added.