Final UniFi OS - Cloud Gateways (Ultra/Max/Fiber) 4.x.x

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  • UniFi OS - Cloud Gateway Ultra 3.2.12

    https://community.ui.com/releases/UniFi…7f-2b496e949b22

    Overview

    This is the initial release for the UCG-Ultra!

    Bundled application

    Download links

    UCG-Ultra

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateway Ultra 3.2.17

    https://community.ui.com/releases/UniFi…7a-7ba5ff714511

    Overview

    UniFi OS 3.2.17 includes the improvements listed below.

    Bundled application

    Improvements

    • Improved various pages on the built-in screen.
    • Improved resiliency around keeping newer packages installed after firmware updates.
    • Improved device stability.

    Download links

    UCG-Ultra

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateway Ultra 3.2.18

    https://community.ui.com/releases/UniFi…75-6a0d2ceb2314

    Overview

    UniFi OS 3.2.18 includes the improvement listed below.

    Bundled application

    Bugfixes

    • Fixed performance degradation introduced in 3.2.17 on certain setups.

    Download links

    UCG-Ultra

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.0.6

    https://community.ui.com/releases/UniFi…9a-fc04af7d15b7

    Overview

    UniFi OS 4.0.6 adds support for VLAN Magic, SNMP and includes the improvements and bugfixes listed below.

    Bundled application

    Improvements

    • Added support for VLAN Magic.
    • Added support for IPv6 addresses for the local portal.
    • Added owner transfers to System logs.
    • Added Identity Standard System Logs.
    • Added system logs when admins reboot the gateway.
    • Added SNMP support.
    • Added support for screen rotation.
    • It will automatically detect if the device is flipped and adjust the screen based on the orientation of the physical device.
    • Allow Full Management users to trigger firmware updates.
    • Allow using Identity when Remote Access is disabled.
    • Allow importing users with email via CSV files.
    • Allow removing and deactivating users/admins when Identity is deactivated.
    • Improved downloading support files.
    • Improved PPPoE stability.
    • Improved DHCP Lease accuracy.
    • Improved initial user list loading speed.
    • Improved speed test accuracy.
    • Improved UniFi OS Backup restore user experience.
    • Improved admin/user removal/de-activation user experience.
    • Improved various pages on the device's built-in screen.
    • Improved UniFi OS resiliency.
    • Improved internet status checks.
    • Improved UniFi Identity user experience.
    • Improved the stability of WireGuard VPN when using FQDN as server address.
    • Improved the reliability of issuing static lease IP.
    • Improved the efficiency of initializing IPS/IDS.
    • Removed weak MAC Algorithms for SSH connections.
    • UniFi OS won't automatically adjust the timezone after an IP address change.
    • Skip password change notifications when enabling SSH.
    • Wake up the screen during night mode when there is an active user session.
    • Don't automatically enable One-Click WiFi when activating Identity.
    • Disable One-Click VPN/WiFi assignment when the service is unavailable.
    • Increased concurrent DNS queries for Ad Blocking and Content Filtering.
    • Users/Groups now automatically get an invitation after assigning resources to them.
    • Updated Traffic Identification signatures.

    Bugfixes

    • Fixed high CPU usage due to dnsmasq or Honeypot.
    • Fixed a rare memory leak issue.
    • Fixed gateway configuration issues when using OSPF.
    • Fixed an issue where Auto Update settings weren't restored after restoring a backup.
    • Fixed an issue where re-activated admins couldn't reach the gateway through the Site Manager.
    • Fixed rare deadlock issues while using Traffic Identification.
    • Fixed an issue where MAC override doesn't work for some MAC addresses.
    • Fixed an rare case where PPPoE throughput was lower without using 0 for Smart Queues.
    • Fixed an issue where YouTube history didn't work while using Ad Blocking.
    • Fixed rare UniFi OS crash.
    • Fixed an issue where applications could get stuck in the "install/uninstall queue" state in rare cases.
    • Fixed a potential default route missing issue.
    • Fixed firewall rule creation issue when multiple ports are specified.
    • Fixed issue that WAN MAC address couldn’t be set back to default one.
    • Fixed missing Traffic Identification statistics in larger deployment.
    • Fixed Traffic Identification crash and memory leak issue.

    Download links

    UCG-Ultra

    UCG-Max

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.0.20

    https://community.ui.com/releases/UniFi…e0-f2e007e693c3

    Overview

    UniFi OS 4.0.20 includes the improvements and bugfixes listed below.

    Bundled application

    Improvements

    • Improved Remote Access connection resiliency.
    • Improved username validation when creating a UI Account through the setup wizard.
    • Improved CPU usage while the display is off.
    • Improved device stability.
    • Improved the DHCP Server response time on large setups.

    Bugfixes

    • Fixed gateway configuration issues in rare cases.
    • Fixed incorrect elapsed time when restoring backups.
    • Fixed an issue where remote logging stops working in rare cases.
    • Fixed RADIUS issues when a username contains a space.
    • Fixed PPPoE connection issues in rare cases.

    Download links

    UCG-Ultra

    UCG-Max

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.1.13

    https://community.ui.com/releases/UniFi…4a-f13fbcc3fa69

    Overview

    UniFi OS 4.1.13 adds support for Directory Integration, Custom Certificates, NetFlow, and Packet Captures.

    Directory Integration

    Allows Identity users to be synced from third-party directories such as Microsoft Entra and LDAP.

    • Integrate with Microsoft Entra, Active Directory, Google Secure LDAP, LDAP, or JumpCloud LDAP.
    • See the Integration Help Center article for more information.


    External Content img.community.ui.com
    Content embedded from external sources will not be displayed without your consent.

    Custom Certificates

    Upload and use a custom TLS certificate for UniFi OS web management access.

    Custom certificate support for the Hotspot Portal is planned for a future release.  

    External Content img.community.ui.com
    Content embedded from external sources will not be displayed without your consent.

    Bundled application

    Improvements

    • Added support for Directory Integration for Identity Standard, sync your users from Microsoft Entra ID, Active Directory, Google Secure LDAP, LDAP, or JumpCloud LDAP.
    • Added support for uploading custom certificates to UniFi OS.
    • Support for the Guest Portal is planned to be available in future releases.
    • Added support for custom SMTP servers for notifications.
    • Added support for SNMP.
    • Added System Log events for unexpected shutdowns.
    • Added support for Identity Enterprise.
    • Added support for Packet Captures. Learn More
    • Added support for NetFlow. Learn More
    • Added support for IPv6 Traffic Identification.
    • Added support for IPv6 DNS shield.
    • Added support for showing IP addresses for Admin Changes in System Logs for remote connections.
    • Added support for sending country restriction events to remote syslog servers.
    • Support for Network Application System Logs will be available in a future Network Application release.
    • Added disk warnings to the Updates tab in Control Plane.
    • Added support for Camera Sharing through the Identity app.
    • Added support for sending Threat/Ad Block detections to Remote Syslog servers.
    • Improved WAN resiliency when changing from DHCP to PPPoE.
    • Improved the user experience when restoring backups.
    • Improved the setup user experience.
    • Improved efficiency for configuration changes.
    • Improved Remote Access and backup restore resiliency.
    • Improved setup resiliency when NTP servers are unavailable.
    • Improved system stability.
    • Improved performance.
    • Improved DNS Shield resiliency.
    • Improved WAN resiliency when RAs are not available in the DHCPv6 environment.
    • [UCG-Max] Improved the storage reformat process user experience.
    • Updated Traffic Identification signatures.
    • Renamed UniFi OS Settings to UniFi OS Control plane, previously only visible via Site Manager.

    Bugfixes

    • Fixed incorrect packet loss reporting when WAN2 is not used.
    • Fixed log spam due to multipath routes.
    • Fixed the inability to download backups when Remote Access is disabled.
    • Fixed an issue where users with UniFi OS permissions couldn't see System Logs.
    • Fixed a DNS server issue that could result in delayed DHCP responses.
    • [UCG-Max] Fixed incorrect storage status in rare cases.

    Download links

    UCG-Ultra

    UCG-Max

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • BlackSpy April 15, 2025 at 6:45 AM

    Changed the title of the thread from “Final UniFi OS - Cloud Gateways (Ultra/Max) 4.x.x” to “Final UniFi OS - Cloud Gateways (Ultra/Max/Fiber) 4.x.x”.
  • UniFi OS - Cloud Gateways 4.1.22

    https://community.ui.com/releases/UniFi-OS-Cloud-Gateways-4-1-22/24ce31bd-20c2-4b41-8e29-9aa0946001e9

    Overview

    UniFi OS 4.1.22 includes the bugfix listed below.


    Bundled application

    Bugfixes

    • Fixed the inability to update or install applications.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.2.12

    https://community.ui.com/releases/UniFi-OS-Cloud-Gateways-4-2-12/7603848f-1dc4-4228-9cdd-459f9f8b017a

    Overview

    UniFi OS 4.2.12 adds support for Traffic Flows, Advanced mDNS options and includes the improvements and fixes listed below.

    Bundled application

    Improvements

    • [UCG-Max/UCG-Fiber] Added support for Traffic Flows.
    • Requires UniFi Network Application 9.1 or newer.
    • Added the ability to generate specific support files.
    • Added support for configuring different release channels per application.
    • Added support for Hotspot Portal Certificates.
    • Required Network Application 9.1 or newer.
    • Added advanced options for mDNS.
    • Required Network Application 9.1 or newer.
    • Added support for SIEM Server integration.
    • Added support for BGP.
    • Improved WireGuard VPN stability.
    • Improved the backup and restore user experience.
    • Improved System Logs.
    • Improved storage status reporting.
    • Improved the storage format resiliency.
    • Improved system stability.
    • Improved static WAN failover resiliency.
    • Improved DHCPv6 WAN stability.
    • Improved DS-Lite compatibility.

    Bugfixes

    • Fixed rare gateway configuration errors.
    • Fixed an issue where Policy-Based Routing could stop working in rare cases.
    • Fixed an issue where you could receive false-positive DHCP exhaustion alerts.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.3.6

    https://community.ui.com/releases/UniFi-OS-Cloud-Gateways-4-3-6/8b82648e-f021-4833-94b2-6eaca22a9ad1

    Overview

    UniFi OS 4.3.6 includes Alarm Manager for Network, Cloudflare Content Filtering and improvements and bugfixes listed below.

    Bundled application

    Improvements

    • Added support for CNAME DNS Records.
    • Requires UniFi Network Application 9.3 or newer.
    • Added support for Alarm Manager.
    • Requires UniFi Network Application 9.3 or newer.
    • Added support for Enhanced Content Filtering with CyberSecure.
    • Requires UniFi Network Application 9.3 or newer.
    • Requires an active CyberSecure subscription for granular content categories powered by Cloudflare.
    • Added the ability to create a new user account while performing the ownership transfer.
    • Improved the Analytics and Data Sharing user experience.
    • Added the ability to completely turn off data sharing.
    • Improved Flows data accuracy.
    • Improved Hostname resolution.
    • Improved Incoming Interface listing for Threats.
    • Improved DDNS resiliency when a non-primary WAN is used.
    • Improved the Admins and Users management user experience.
    • Improved Remote Access connection resiliency.
    • Improved backup and restore resiliency, including better feedback when a restore fails.
    • Improved storage health reporting.
    • Updated Traffic Identification signatures.

    Bugfixes

    • Fixed an issue where the Release channel could change unexpectedly.
    • Fixed an issue where transfer ownership could fail in rare cases.
    • Fixed an issue where local users didn't receive email notifications using a custom SMTP server.
    • Fixed an issue where you couldn't configure SNMP Location and Contact separately; both were required.
    • Fixed an issue where users would be required to re-login every hour locally.
    • Fixed an issue where the "Plug in Internet Cable" could be shown in rare cases.
    • Fixed routing issues when the same subnets are configured on multiple IPsec VPNs.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.3.9

    https://community.ui.com/releases/UniFi-OS-Cloud-Gateways-4-3-9/22fd0bc8-5b74-4f63-b878-a3b44119d589

    Overview

    UniFi OS 4.3.9 includes the bugfixes listed below.

    Bundled application

    Bugfixes

    • Fixed an issue where Hardware Offloading could be enabled unexpectedly in rare cases despite being disabled in the settings.
    • Fixed an issue where IoT devices couldn't access the internet when Hardware Offloading was enabled and the WAN connection was PPPoE.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • UniFi OS - Cloud Gateways 4.4.7

    https://community.ui.com/releases/UniFi-OS-Cloud-Gateways-4-4-7/3616808e-3c70-4a1d-b035-c01d7b2a0089

    Overview

    UniFi OS 4.4.7 includes the improvements and bugfixes listed below.


    Bundled application

    Improvements

    • Added a Block Page for Content Filtering and Ad-Blocking.
    • Requires UniFi Network 9.4.11 or newer.
    • Added IPv6 support for the Direct Connect feature.
    • Improved DNS monitoring resiliency for WAN SLA.
    • Improved QoS performance.
    • Improved Alarm Manager.
    • Improved IPsec VPN connection stability.
    • Improved Remote Access connection resiliency.
    • Improved storage mounting resiliency.
    • Improved Hardware Offloading for LAN-to-LAN Traffic.

    Bugfixes

    • Fixed an issue where you could experience excessive logging related to MAC address scanning.
    • Fixed the Traffic Activity display for clients.
    • Fixed a gateway configuration issue when applying IPv6 NAT.
    • Fixed false-positive alerts claiming that the DHCP pool is running out of addresses.
    • Fixed an issue where local account users did not receive email notifications.
    • Fixed an issue where static routes were missing after switching the WAN type from dynamic to static.
    • Fixed an issue where DDNS didn't function correctly when using dual PPPoE WAN connections.
    • Fixed an issue where content filtering didn't apply to specific traffic flows.
    • Fixed an issue with WireGuard VPN server when using non-primary WAN interfaces.
    • Fixed an issue where RADIUS authentication could fail when using anonymous identity.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • JaXnPrivate November 22, 2025 at 12:41 PM

    Added the label Stable
  • UniFi OS - Cloud Gateways 4.4.9

    https://community.ui.com/releases/514b799c-769f-4b2d-af2a-57edf25802c8

    Overview

    UniFi OS 4.4.9 includes the improvement and bugfix listed below.


    Bundled application

    Improvements

    • [UCG-Fiber] Improved throughput performance on the RJ45 WAN port.

    Bugfixes

    • [UCG-Ultra/UCG-Max] Fixed an issue where Hardware Offload was enabled after reboot despite being disabled in the Network Application.

    Download links

    UCG-Ultra

    UCG-Max

    UCG-Fiber

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

  • Vor 4 Tagen wurde die 5.0.12 RC, sollten also keine groben Fehler mehr drin sein so nächste oder übernächste Woche.

    Mein Netzwerk

    WAN1: Vodafone Station im Bridge, Vodafone 1000/50

    WAN2: Fritzbox 7510, Telekom VDSL nur für Telefon Company Flex

    UDM Pro, USW Pro 24 Poe Gen2, US-24-250W, US-8, US-8-150W, US8-60W, USW-Flex, USW-Flex Mini, USW Ultra 210Watt, 5x UAP-AC-Pro, U7Pro, UAP AC M

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