The latest lab file on our download server, "fritzboxlabor-5530_Fiber_Labor-xxxx.zip", contains
- the lab version for your FRITZ!Box
- this "infolab-en.txt" file with important information on this lab version
- information, feedback options, and the file at en.fritz.com/fritz-lab


New Features: 
- Substitute connection: Better fallback protection for the internet connection
- Optimized parental controls
- More possibilities in the smart home
- Online Monitor with expanded functions

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# New Features and Improvements in FRITZ!OS 8.20
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# New features and correction of FRITZ!OS


## Internet:
- **Changed** Root certificate added for DNS over TLS with SSL.com
- **Fixed** IPv6 addresses were not displayed in full in the overview of WireGuard® connections
- **Fixed** In some cases, connecting to the internet manually via "Reconnect" in the online monitor took a very long time (affected only FRITZ!OS 8.20 on FRITZ!Box models for DSL or fiber optics)
- **Fixed** Internet access (remote access) to the FRITZ!Box could be configured only while the FRITZ!Box was connected to the internet
- **Fixed** The summary of individual access profiles for parental controls displayed "No restriction" despite restrictive settings
- **Fixed** When the standard profile in the parental controls was blocked, sometimes authorized devices could no longer register with the Wi-Fi network
- **Improved** Better interoperability with newer browser versions
- **Improved** Detailed rendering of fallback protection in Online Monitor
- **Improved** Operation of schedules in the parental controls reworked for small displays (smartphones, tablets)
- **Improved** Support for fallback protection also for primary internet connections with a fixed IP configuration
- **Improved** Support of IPv6 configuration for fallback protection

## Telephony:
- **Changed** Root certificate added for encrypted VoIP with SSL.com

## Home Network:
- **Fixed** In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for an extender in the home network instead of its own address
- **Fixed** Names of home network devices were occasionally assigned incorrectly
- **Fixed** Under some circumstances active devices with static IP addresses were displayed as inactive and vice versa

## System:
- **Fixed** Under "Network Connections" in the FRITZ!OS interface, "connected with FRITZ!Repeater" was sometimes shown twice
- **Improved** Stability

# Improvements of FRITZ!OS within FRITZ!Labor

## Internet:
- **Fixed** Display of DNS server in the connection details of the Online Monitor was not always complete in certain scenarios
- **Fixed** On DS-Lite connections, the private IPv4 address was used in the VPN settings as the remote site for IPSec VPN connections rather than the reachable IPv6 address
- **Fixed** Under some circumstances no IPv6 address was assigned via DHCP
- **Improved** Error handling in Online Monitor reworked for certain operating modes
- **Improved** Tooltips in the Online Monitor are easier to read by hiding entries with 0 Mbit/s

## Wi-Fi:
- **Fixed** Connection problems with various wireless devices resolved, including Waipu TV Stick, NVIDIA Shield TV, Xiami 13T 5G, Sonos One SL, Lenovo Tab M11
- **Fixed** Inactive Wi-Fi networks were not displayed on the Overview page
- **Improved** Better stability

## Home Network:
- **Fixed** After successfully changing the LED settings in the Device Details, an error message was displayed
- **Fixed** Incorrect display of MAC addresses in user interfaces of wireless repeaters

## Smart Home:
- **Improved** Better stability

## System:
- **Fixed** "Find New FRITZ!OS" could be run in the user interfaces of wireless repeaters connected to routers that are not FRITZ!Boxes
- **Fixed** Error message while restoring settings from a backup for an incompatible FRITZ!OS version was too imprecise
- **Improved** Specific improvements to the FRITZ!Box user interface

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History of new Functions and Improvements in FRITZ!OS 8.24

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# Improvements of FRITZ!OS -131379


## Internet:
- **Fixed** Blocking devices in guest networks with the filter system did not wirk properly

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# Improvements of FRITZ!OS within FRITZ!Labor -131080

## Internet:
- **Fixed** After changing the country and time zone settings, the Online Monitor could no longer be opened

## System:
- **Fixed** After changing country and time zone, the time stamp in the user interface was not updated
- **Fixed** Changes to the time server could cause the FRITZ!Box to restart


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# Improvements of FRITZ!OS within FRITZ!Labor -130532

## Internet:
- **Fixed** In the Online Monitor, the connection status was incorrectly marked as inactive when an existing internet connection was being used
- **Fixed** Online Meter remained at 0 during connections via mobile network

## System:
- **Improved** Stability
- **Improved** Translations added

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# Improvements of FRITZ!OS within FRITZ!Labor -130003

## Home Network:
- **Fixed** In certain scenarios, unnecessary entries for switches (FA:CE:...) were displayed in the idle connections section

# Improvements of FRITZ!OS 08.24-129428

## Internet:
- **Fixed** In the Connection Details in the Online Monitor, the status of the WAN connection was sometimes displayed as inactive despite an active internet connection
- **Fixed** When packet acceleration was enabled, performance changes arose after long runtimes (FRITZ!Box 7690, 7630, 5690 Pro, 5690, 4690 only)

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# Improvements of FRITZ!OS within FRITZ!Labor 

## Internet:
- **Fixed** Online Meter remained at 0 during connections via mobile network

## System:
- **Fixed** Some pages were not refreshed automatically


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Additional Feedback on FRITZ!OS
======================================

In addition to direct feedback in our lab area en.fritz.com/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) DSL feedback via "Internet / DSL Information / Feedback"
2) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients
3) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call


Information on the Lab update:
============================


This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. FRITZ! is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.fritz.com/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.
2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.


Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-labor-xxxxx.zip" file.
2) Use the FRITZ!Box user interface to install the update:
- Select "View: Advanced" in the footer.
- Click "Update" in the "System" menu.
- Switch to the "FRITZ!OS File" tab.
- Follow the instructions displayed on the screen.
- Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field.
3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.


Restoring your device to how it was before testing
You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version" or reset the FRITZ!Box back 
to the official FRITZ!OS using the enclosed Windows program "recover.exe" (included in the Lab package).

_________________________________________________________


  FRITZ! GmbH 2004-2026. All rights reserved.

This FRITZ! firmware package contains files that are distributed under various licenses, in particular under an FRITZ! proprietary license 
or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various 
licenses, see the "license.txt" file (https://download.fritz.com/fritzbox/license.txt).
The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

FRITZ! grants the non-exclusive right to use this FRITZ! firmware package, which is supplied exclusively in object code format. 
The licensee may create only one copy of the software, which may be used exclusively for backup purposes.
FRITZ! reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing 
and except as permitted by law, this FRITZ! firmware packet may not
be reproduced, distributed or in any other manner made publicly accessible,
nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible.
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