https://www.maerklin.de/de/service/downloads/msw-updates

Firmware Update Information 4.27.0.13
First February Update 2025
Released on: February 25, 2025, at 09:00 AM

Release Enhancements
New Features

Synchronization of the locomotive list after connecting to the central unit, including progress display.
Input and display option for the central unit's IP address.
Additional function icons added.

Improvements

Display of a 5-grid pattern for the locomotive list.
Improved text wrapping in multi-line text fields.
Restoration and re-transmission of locomotive and magnet protocols after returning from expansion device mode.
Increased programming timeout for MM2 locomotives to 120 seconds.
Immediate transmission of the system command Locomotive Data Protocol after speed step changes for DCC locomotives.
Immediate transmission of the system command Locomotive Data Protocol after loading the locomotive list if the current locomotive is a DCC locomotive.
Locomotive data synchronization with a more reliable checksum.
Function level reset when pressing Shift + Locomotive and Shift + Keyboard.
When resetting the MSW, a stop command is only triggered if it is the main device.

Bug Fixes

Magnet article protocol is now permanently adjustable again.
Corrected the translation table for CS2 function icons to MS2 function icons.
Escape in the speedometer type menu now correctly returns to MSW configuration.
The dialog for starting the own access point no longer interrupts Wi-Fi password entry.
When configuring an mfx locomotive, only as many outputs are read as the MSW can internally support.

OS

Fixed an issue with WPA3 connections that prevented a successful connection if a network with a shorter SSID but otherwise identical content existed.