---
title: PRTG 26.3.124 is Now Available in the Stable Release Channel
description: PRTG 26.3.124 brings new WMI and Redfish sensors, early access to AI-powered Alarm Insights, and two experimental SIMATIC sensors.
---

[Paessler Blog - All about IT, Monitoring, and PRTG](https://blog.paessler.com)

# [PRTG 26.3.124 is Now Available in the Stable Release Channel](https://blog.paessler.com/prtg-26.3.124-is-now-available-in-the-stable-release-channel)

 Written by [Michael Becker](https://blog.paessler.com/author/michael-becker) | Oct 12, 2026

We just released [PRTG version 26.3.124](https://www.paessler.com/prtg/history/stable#26.3.124.1727) to the stable release channel, and it brings a full package: several new WMI sensors, two new Redfish sensors, refreshed FTP Server File Count and SNTP sensors, the new AI feature Alarm Insights as an early access preview, and two experimental SIMATIC S7-1200/1500 sensors. On top of that, we updated the German, Spanish, and Dutch language files.

Let's jump into the details:

## 🧩 New WMI Sensors

This release adds seven new WMI v2 sensors, all built to succeed their classic counterparts and designed for future compatibility with the upcoming multi-platform probe for Windows. The [WMI Memory v2 sensor](https://www.paessler.com/manuals/prtg/wmi_memory_v2_sensor) monitors free memory in bytes and percentage, while the [WMI CPU Load v2 sensor](https://www.paessler.com/manuals/prtg/wmi_cpu_load_v2_sensor) tracks total and per-core CPU utilization. The [WMI System Uptime v2 sensor](https://www.paessler.com/manuals/prtg/wmi_system_uptime_v2_sensor) reports the time since the last reboot, and the [WMI Pagefile v2 sensor](https://www.paessler.com/manuals/prtg/wmi_pagefile_v2_sensor) keeps an eye on pagefile usage percentage.

For network monitoring, the [WMI Network Card v2 sensor](https://www.paessler.com/manuals/prtg/wmi_network_card_v2_sensor) covers traffic, packet rates, and error/discard counters. The [WMI Print Queue v2 sensor](https://www.paessler.com/manuals/prtg/wmi_print_queue_v2_sensor) rounds out the set with print queue job counts, age filtering, and custom states for printer errors.

Additionally, you get the [WMI Windows Security sensor](https://www.paessler.com/manuals/prtg/wmi_windows_security_sensor), a successor to the WMI Security Center sensor. It reports antivirus and firewall product status along with signature status on your Windows client systems.

## 🖥️ New Redfish Sensors

Two new Redfish sensors expand your hardware monitoring options beyond SNMP in this release. The [Redfish Temperature sensor](https://www.paessler.com/manuals/prtg/redfish_temperature_sensor) creates one instance per physical temperature probe, giving you granular, per-sensor thermal monitoring and alerting, with support for both IPv4 and IPv6. The [Redfish Fan Status sensor](https://www.paessler.com/manuals/prtg/redfish_fan_status_sensor) provides a consolidated view of fan health, combining an overall status with per-fan status and speed channels.

Together with the existing [Redfish System Health sensor](https://www.paessler.com/manuals/prtg/redfish_system_health_sensor), these two new sensors let you fully replace the SNMP HPE ProLiant System Health sensor, so you can complete your migration from SNMP to Redfish for HPE ProLiant servers.

## 🔄 Updated Sensors

Two established sensors get a v2 refresh in this release. The [FTP Server File Count v2 sensor](https://www.paessler.com/manuals/prtg/ftp_server_file_count_v2_sensor) succeeds the FTP Server File Count sensor and continues to monitor file counts on your FTP server. Instead of separate host and port settings, you now connect via an FTP URL, and you can configure recursive subfolder scanning, choose between Passive or Active FTP mode, set a request timeout, and pick your connection security (Explicit, Implicit, or None).

The [SNTP v2 sensor](https://www.paessler.com/manuals/prtg/sntp_v2_sensor) monitors a Simple Network Time Protocol server and checks the time difference between the target NTP server and your probe's local system time, along with the server's response time and stratum level. Unlike the existing SNTP sensor, it reports the time offset at millisecond resolution instead of in whole-second steps, so small clock drifts become visible and you can set alerts on them.

## 🤖 Alarm Insights: Early Access to AI-Powered Alarm Analysis

PRTG 26.3.124 introduces Alarm Insights, a new feature in the New UI that helps you make sense of your alarms faster. You find it in the left side menu bar, where it lets you analyze alarms, acknowledge them directly, and get suggestions on how to resolve them.

Alarm Insights is currently available as an early access preview. If you want to try it out, sign up through the registration page linked in the feature.

## 🧪 Experimental: SIMATIC S7-1200/1500 Sensors

Two experimental sensors bring Siemens PLC monitoring to the next level in this release. The [SIMATIC S7-1200/1500 Hardware Status sensor](https://www.paessler.com/manuals/prtg/simatic_s7_1200_1500_hardware_status_sensor) (BETA) lets you monitor the health of hardware modules and PROFINET IO devices connected to your Siemens S7-1200/1500 PLC. It discovers the connected hardware tree via the S7 Web API and reports the status of each device and module, such as ET200SP stations, drive controllers, remote IO stations, and individual I/O modules, directly in PRTG. It complements the existing PLC CPU Status sensor by monitoring the external hardware attached to the CPU, so you can detect issues like remote IO power loss, module removal, or PROFINET communication problems even while the CPU itself keeps running. The sensor requires PLC firmware V4.1 or higher and credentials for the S7 Web API.

The [SIMATIC S7-1200/1500 Alarm Status sensor](https://www.paessler.com/manuals/prtg/simatic_s7_1200_1500_alarm_status_sensor) (BETA) uses the S7 Web API's Alarms.Browse function to monitor active and unacknowledged alarms on your Siemens S7-1200/1500 PLC. This includes the critical case where the PLC stays in RUN while a process alarm remains active and unaddressed.

## ⚙️ Also in This Release

Beyond the new sensors and features, this release brings a range of smaller improvements. On the server side, sensors set to "Down (Acknowledged) Indefinitely" no longer lose that status after a manual cache recalculation, and we fixed several installer and update issues.  
HTTPS-based sensors now offer explicit certificate validation, and the Script v2 sensor supports PowerShell 7. In the PRTG API v2, we added an experimental MCP server plus a new batch DELETE endpoint, and the New UI gets a Libraries entry, a Dependencies view, and Top 10 Lists as part of Insights.

## 🗒️ Check Our PRTG Release Notes

PRTG 26.3.124 that we released today includes 260 resolved issues. We implemented 15 features and 31 stories, fixed 57 bugs, and finished 91 tasks and sub-tasks. Additionally, we also finished 53 documentation tickets. For the full list of changes, check our [PRTG release notes](https://www.paessler.com/prtg/history/stable#26.3.124.1727).

We also offer a [public roadmap of PRTG](https://www.paessler.com/prtg/roadmap), updated regularly, where you can read what we plan to build next. 

[View full post](https://blog.paessler.com/prtg-26.3.124-is-now-available-in-the-stable-release-channel)

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