What's New1.8.0 - Auth API – 1.8.0

PlugStream Change Logs

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 1.35.5

PlugStream Firmware 1.35.5

1.35.5Stable
Recommended for production deployments.
Tests: passed (459/459)
Firmware
July 30, 2026
Supported devices
#PlugStream 7
#PlugStream 22

PlugStream Firmware 1.35.5

Performance Improvements

  • metering: reduce standby MeterValues cadence to the readiness idle interval (95a52e5)
  • boot: keep core-dump structs off the long-lived main-task boot stack (f62f648)

Features

  • thermal: proportional derating to stop derate-line oscillation (899724d)
  • diag: crash breadcrumb in StartupOfTheDevice for remote fault triage (31031b1)
  • diag: flash core dump partition + runtime-conditional crash summary (469f8c2)
  • diag: push core dump summary to CSMS as CoreDumpSummary.v1 DataTransfer (c9cc57b)

Bug Fixes

  • ws: bound websocket send timeout to stop watchdog hang (56bdb66)
  • meter: only emit Inlet measurands when the Aux CT is healthy (6449ac3)
  • boot: raise main task stack to 8KB - fixes 1.35 boot-loop (stack overflow) (1ad6574)
  • ota: clear pending-install state on failure so a bad image can't self-loop (644b3b0)
  • hal: debounce CP state, signal exact current, retain 4G modem DCE (0f2b7f2)
  • hal: harden captive-portal DNS, socket-lock reporting and init paths (23f2c78)
  • hal: make NVS init idempotent and default the handle (143c504)
  • ota: never install/reboot while charging or vehicle connected (8633034)
  • smartcharging: protect reserved off-peak default from broad clears (a56b1cc)
  • boot: attribute OTA-window watchdog resets to FirmwareUpdate (1b79a51)
  • metering: measure line current as true RMS instead of peak x 0.707 (bc78898)
  • pen: reject isolated voltage-sense spikes to prevent [secure] PEN trips (d4a24e4)