These release notes include updates for:

• Reduxi Gateway
• Reduxi P1 WiFi
• Reduxi P1 Ultra
• Reduxi P1 Ultra
• Reduxi P1 Pro

1 Version 1.0.26 (15.9.2026)

• Added: support for new meter: SiemensIM351 IR (Austria)
• Added: Netz Burgenland readout under L&G E450 meter (Austria)
• Added: SAG readout under Kaifa MA309 meter (Austria)
• Fixed: OFF GRID status handling for Iskraemeco AM550, LandisGyr E450 & Sanxing meters
• Added: hide WireGuard IP address entry in system status when not configured
• Improved: Gateway: measurement formatting and scaling logic
• Added: Gateway: MQTT support and enhanced measurement data distribution
• Added: Gateway: support for modbus write
• Updated: Gateway: current deadband functionality and refactor current reading methods
• Updated: show actual firmware upload speed on manual firmware update
• Added: support for P1 ULTRA 2.1 & better modem detection on startup
• Added: Support for Simcom LTE modems, better connection drop handling & termination of active connection on reboots

2 Version 1.0.25 (27.8.2026)

• Added: detailed modem & SIM card status
• Change: change locale string Serial number to Unit ID

3 Version 1.0.24 (21.8.2026)

• Fixed: allow empty wifi ssid and password, fix password fields
• Fixed: increase stack size for web socket
• Improved: move WireGuard settings to advanced section & display hw version
• Added: push WireGuard status change to cloud
• Added: sanitiy check for DLMS frame parsing

4 Version 1.0.23 (28.7.2026)

• Added: report WireGuard ip address to SYSTEM_VPN_STATUS request

5 Version 1.0.22 (28.7.2026)

• Added: support for new hardware: GATEWAY (relays, IO expander, Ethernet, Modbus)
• Added: GW: Ethernet support incl. static IP configuration
• Added: WireGuard VPN tunnel support on ESP32 and ESP32-S3 devices, configurable over WebSocket
• Added: GW: energy meter component — bus initialization, gain factor management, value reading & posting
• Added: Modbus emulation for Chint & Eastron meters
• Added: GW: Modbus support for gateway input registers
• Added: MQTT presets
• Added: support for custom hotspot password
• Added: GW: WS2812 RGB LED driver (ICLed) for status signaling
• Added: support for SML optical meters
• Added: new meters — CLOU CL710K24 (Romania), Landis+Gyr E650 (all countries) and E650 IR, Landis+Gyr E350 (Sweden, E.ON readout), Kaifa MA309 with IKB readout
• Added: App: confirmation dialog before deleting MQTT certificates
• Added: App: custom serial parameters when selecting Modbus type
• Improved: Reader — optical probe timeouts, power calculated from U, I and PF when not present (DSMR), UART settings honored for the IR handshake
• Improved: LED signaling refactored;
• Improved: mDNS service initialization checks and status helpers
• Improved: system stability — WiFi task moved to core 1 and run from IRAM, Modbus moved to CPU1, increased main and system event task stack sizes, ADC timer and alarm count tuning
• Improved: LTE modem — reboot when PIN set fails, reduced signal scan frequency
• Improved: GW: factory reset also resets relay states
• Updated: Modbus component to 2.1.3, esp_modem to 2.0.2, added led_strip managed component
• Fixed: GW: connected status and measurement values for gateway
• Fixed: Eastron values stored as INPUT registers
• Fixed: udpEnabled when flash is empty; settings now write 0 when a keyword is missing
• Fixed: App: banner buttons, Network tab glitches, missing brand logos, ...

6 Version of P1 converter with new S3 processor

production date June 2026 or later

With this hardware version, we have made your Reduxi converters more secure. Starting from June 2026, each p1 converter has its own unique password — you will find it printed on the label on your device, or you can scan the QR code on it. 

The converters already in the market will keep their default password policy. It only affect newly produced devices.

You will need this password in two situations:

• To connect to the device's Wi-Fi hotspot
• To log in to the device settings with admin account

If you are using our mobile app (version 4.3.1 or later), it will read the password automatically — no extra steps needed.
If your device label does not show a password, the password is simply: admin

7 Version 1.0.21 (13.5.2026)

• Added: App: support to upgrade to stable version when on BETA firmware
• Added: App: support for brand an OEM Energija
• Added: additional mDNS discovery information
• Improvement: MBus meter read reliability
• Improvement: system & network connectivity stability
• Added: support for aux P1 power on enabled meters
• Added: option to override timestamps in received meter data
• Added: support for optical pass-trough meters & L&G450 IR meter (Wiener Netze)

8 Version 1.0.20 (8.4.2026)

• Added: Support for new hardware: P1 Ultra v1.6

9 Version 1.0.19 (2.4.2026)

• Added: Support for new hardware: P1 ULTRA PRO 2
• Added: Support for SLM770A LTE modem on P1 ULTRA PRO 2
• Added: SDCard component support on P1 ULTRA PRO 2
• Added: Coredump capture and upload support P1 ULTRA PRO 2
• Added: Support for MQTT message types (Standard & Reduxi).
• Added: MQTT SSL/TLS support with X.509 certificate validation.
• Added: Generic DSMR meter for P1 interface
• Added: Austria Stromnetz Graz readout for Landis+Gyr E450.
• Added: Sagemcom T210-D P1 meter support
• Added: Custom MAC address configuration support
• Added: Hotspot, sysadmin and admin password management (P1 ULTRA PRO 2)
• Added: WiFi signal level reporting and active network interface tracking
• Added: CT/VT meter scaling
• Added: Correct timezone for Ljubljana
• Improved: LTE modem detection and data reset on boot; connect/disconnect callbacks (P1 ULTRA PRO 2)
• Improved: LED signalling refactored — LTE uses cyan/yellow, WiFi unchanged; green blink when only AP is active
• Improved: HTTP payload reading to handle partial data reception
• Improved: Network handles roaming disconnects and reconnects automatically
• Improved: mDNS service extended with brand and unit ID handling.
• Fixed: IEC_62056_21 meter initialization replaced with IEC_62056_21_P1 where appropriate
• Fixed: Default Modbus RS485 baud rate updated to 115200
• Fixed: Cache-Control and Content-Length headers added to HTTP responses
• Fixed: Reader stops reading data on meter change
• Added: App: WiFi signal bars and connection status in Network view
• Added: App: Show/hide password toggle in Login, Network, System and Services views
• Added: App: CT/VT meter scaling parameter display with improved UI
• Added: App: Detailed meter configuration copy to clipboard
• Added: App: MQTT message type handling and display
• Updated: App: Modbus mode selection UI
• Improved: App reload flow on reboot and local OTA firmware upgrade
• Improved: Readouts sorted alphabetically in meter selection
• Added: App: MQTT certificate file management UI
• Fixed: Show unit ID always when sysadmin is enabled (P1 ULTRA PRO 2)

10 Version 1.0.18 (14.1.2026)

• Added: Support for reading meters using RS485 optical probes (IEC 62056-21 Mode C) on compatible hardware.
• Added German (DE) locale
• Added: Support for new hardware: P1 Ultra.
• Added: Over-the-Air (OTA) automatic firmware updates, including the option to schedule the update time.
• Improved: Stability of DSMR data handling and resilience to missing data timestamps.
• Added: Support for new meter types and data schemas.
• Created file with a list of supported meters and their communication interface

11 Version 1.0.17 (20.11.2025)

• OEM brand: Support for modbus & meter readout
• Meters: support for Aidon 65XX meters (Sweden)
• App: meter countries alpabetical sort added
• Improved meter parameters handling in /config endpoint
• Updated libraries for web sockets, mdns & lte modem
• Solution for Kamstrup meter with a modified cable

Date: 2025-11-13, Version 1.0.16

• Modbus: enabled by default
• Modbus: fix for missing timestamp on DSMR meter datagrams
• App: using device hostname in user messages

Date: 2025-11-13, Version 1.0.16

• Modbus: enabled by default
• Modbus: fix for missing timestamp on DSMR meter datagrams
• App: using device hostname in user messages

Date: 2025-10-23, Version 1.0.15

The releases includes:

• On P1Wifi we improved the Modbus communication between controller and P1Wifi. The energy meter data is provided in Modbus registers, making the connection more robust and provides more clear information to the user.

• MQTT: generate unique client id for each device
• Modbus: reset Modbus registers when changing meter
• Modbus: [Reduxi] support for meter information & updated docs
• Send status to MQTT & Modbus in case of meter data parse error
• Support for 2 new OEM brands
• HttpServer: Share sessions between same users logged in from different devices (for now)
• HttpServer: Refactored session tracking
• Stability improvements with utilization of external RAM
• UdpServer: enable UDP server by default

Date: 2025-10-15, Version 1.0.14

The releases includes:

• Network: improved connection to AP
• OTA: Firmware version check
• App: options to manage individual services, layout improvements
• P1 ULTRA PRO: support for Modbus RTU
• Modbus REDUXI: fixed initial register values, serve register values as FLOAT type
• Reader: support for new meters & readout schemas
• Cloud: connection optimizations
• Device memory optimizations and stability improvements

Date: 2025-09-09, Version 1.0.13

The releases includes:

• updated an OEM logo

Date: 2025-09-05, Version 1.0.12

The releases includes:

• fix empty wifi ssid field when setting up just LTE connection
• support for OEM brand AP ssid
• support for services per OEM brand
• reset cloud status in case energy meter changes
• board: support for P1 ULTRA hardware
• app: default selection of meter and readout
• reader: code refactor & support for new meters
• reader: DSMR code updated
• new OEM brand added
• app: use pretty names for detected meter structure
• increased robustness: stop reading meter data on OTA update
• app: send meter status to web socket