PlugStream is continuously updated to improve reliability, security, and user experience. This page provides a transparent record of every software and firmware release, including what changed and why it matters.
Latest
PlugStream Firmware 1.31.1
PlugStream Firmware 1.31.1
1.31.1Stable
Recommended for production deployments.
Tests: passed (414/414)
Firmware
July 26, 2026
Supported devices
#PlugStream 7
#PlugStream 22
PlugStream Firmware 1.31.1
Bug Fixes
meter: derive charged energy and outlet power from V_rms x I_rms (469b6c6)
robustness: close Math.hpp ODR trap and clock sentinel-at-zero collision (3de1be4)
bluetooth: raise nimble_host task stack to 8KB to stop provisioning reboots (a86031e)
ci: validate release authentication (e1aa1f4)
csms: fail back to primary CSMS and restrict OCPP versions to supported (b9526e8)
evse: clear stale transient PEN faults (e778917)
led: require live CSMS connection for blue standby (da496e5)
ble: enable WiFi/BLE software coexistence and harden provisioning radio paths (c50c661)