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 1.53.4
PlugStream Firmware 1.53.4
1.53.4Stable
Recommended for production deployments.
Tests: passed (595/595)Coverage: 78.7%
Firmware
August 25, 2026
Supported devices
#PlugStream 7
#PlugStream 22
PlugStream Firmware 1.53.4
Bug Fixes
ocpp: execute the offline journal CREATE TABLE instead of only preparing it (38254ab)
security: stop logging the presigned firmware URL in full (f8f1439)
sensor: bound journal recovery so a broken database cannot burn the CPU (5aec47d)
sensor: detect a slow journal, not just a broken one, and say so remotely (2318d52)
sensor: keep the journal file small - littlefs charges every commit for it (02fef3b)
ocpp: make the boot-recovery SQL executable on the device it ships to (1a99b6a)
Features
ble: enable BLE 5 (2M PHY) and link encryption, keep BLE always on (c8ddf29)
ble: report commissioning stage over BLE with GET_DIAGNOSTICS (28625dd)
diagnostics: name the top CPU tasks in platform telemetry (73ed684)
ocpp: close interrupted transactions at boot (offline journal phase 2) (b18eea0)