UniFi OS 5.1.19 includes the improvements and bugfixes below.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.4.57
• UniFi Protect
• UniFi Identity
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.4.57
• UniFi Identity
• UniFi InnerSpace

Improvements

• Improved backup restore resiliency.
• Improved system stability.

Bugfixes

• [UCK-G2-Plus] Fixed missing storage notifications.

UniFi OS 5.1.15 includes the improvements and bugfixes below.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.4.57
• UniFi Protect
• UniFi Identity
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.4.57
• UniFi Identity
• UniFi InnerSpace

Improvements

• Improved system stability.

Bugfixes

• Fixed the security issues mentioned in Security Advisory Bulletin 065.

UniFi OS 5.1.12 includes the improvements and bugfixes below.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.3.58
• UniFi Protect
• UniFi Identity
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.3.58
• UniFi Identity
• UniFi InnerSpace

Improvements

• Added the ability to revert applications and restore configuration backups.
• Allowed Super Admins to restore local backups.
• Improved the Alarm Manager user experience.
• Improved system stability.
• Improved device discovery resiliency.
• Improved storage mounting resiliency.
• Improved the app restoration experience after a firmware update.
• Improved firmware upgrade behavior by updating the Network Application to the latest official release after an upgrade.

Bugfixes

• Fixed the security issues mentioned in Security Advisory Bulletin 064.

UniFi OS 5.1.11 includes the improvements and bugfixes below.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.3.58
• UniFi Protect
• UniFi Identity
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.3.58
• UniFi Identity
• UniFi InnerSpace

Improvements

• Added the ability to revert applications and restore configuration backups.
• Allowed Super Admins to restore local backups.
• Improved the Alarm Manager user experience.
• Improved system stability.
• Improved device discovery resiliency.
• Improved storage mounting resiliency.
• Improved the app restoration experience after a firmware update.
• Improved firmware upgrade behavior by updating the Network Application to the latest official release after an upgrade.

UniFi OS 5.0.16 includes the improvement below

Available Applications for the UCK-G2-Plus

• UniFi Network 10.0.162
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.0.162
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved system stability.

UniFi OS 5.0.12 includes the improvements listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.0.162
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.0.162
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved system stability.
• [Identity] Renamed Group to Role when the console is managed by Fabric.

Available Applications for the UCK-G2-Plus

• UniFi Network 10.0.162
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 10.0.162
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Added time/date mismatch toast messages.
• Improved the Internet connectivity check.
• Improved the backup and restore resiliency.
• Improved the device discovery process for faster detection.
• Improved certificate file validation.
• Improved Web UI Stability and performance.
• Improved the Alarm Manager user experience and resiliency.
• Improved system stability.

Bugfixes

• Fixed an issue where incorrect suggestions could be shown when disks are At Risk.

UniFi OS 4.4.3 includes the improvements listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 9.4.19
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 9.4.19
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved Remote Access connection resiliency.
• Improved HDD detection for WDC WD10EACS-07D6B1 and WD20EARS-00MVWB0.

UniFi OS 4.4.2 includes the improvements and bugfix listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 9.4.19
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 9.4.19
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Added support for IPv6 in the Direct Connect feature.
• Added automatic IP-address renewal to ensure seamless connectivity when the DHCP subnet changes.
• Improved Alarm Manager.
• Improved disk recognition to prevent certain HDDs from being misidentified as an SSD when they fail to report RPM via S.M.A.R.T.
• Improved storage mounting resiliency.

Bugfixes

• Fixed an issue where local accounts didn't receive email notifications.

UniFi OS 4.3.6 includes Alarm Manager for Network and the improvements and bugfixes listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 9.2.87
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 9.2.87
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Added support for Alarm Manager.
• Requires UniFi Network Application 9.3 or newer.
• 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 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.

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.

UniFi OS 4.2.12 includes the improvement and bugfixes listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 9.0.114
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 9.0.114
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved Network Application resiliency.

Bugfixes

• Fixed an issue where custom Protect permissions could get lost or appear incorrectly in rare cases.

UniFi OS 4.2.9 includes the improvements listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 9.0.114
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 9.0.114
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Added support for SIEM Server integration.
• Added the ability to generate specific support files.
• Added support for configuring different release channels per application.
• Added the ability to configure SNMP Contact and Location.
• Improved the backup and restore user experience.
• Improved System Logs.
• Improved storage resiliency and reporting.

UniFi OS 4.1.22 includes the bugfix listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.6.9
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 8.6.9
• UniFi Identity Enterprise
• UniFi InnerSpace

Bugfixes

• Fixed the inability to update or install applications.

UniFi OS 4.1.11 includes the improvements and bugfixes listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.6.9
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2 and UCK-Enterprise

• UniFi Network 8.6.9
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved the local admin creation user experience.
• Improved storage health reporting.

Bugfixes

• Fixed an issue where local accounts couldn't log in after restoring a backup.
• Fixed disk probing issues with certain SSDs while using USB-C power.

UniFi OS 4.1.9 adds support for Directory Integration, and Custom Certificates.

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.

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.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.5.6
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.5.6
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.5.6
• UniFi Identity Enterprise
• UniFi InnerSpace

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 disk warnings to the Updates tab in Control Plane.
• Added support for Camera Sharing through the Identity app.
• Added support for showing IP addresses for Admin Changes in System Logs for remote connections.
• Improved Remote Access and backup restore resiliency.
• Improved system stability.
• Improved the user experience when restoring backups.
• Improved the setup user experience.
• [UCK-G2-Plus] Improved the storage reformat process user experience.
• [UCK-G2-Plus] Improved storage resiliency.
• Renamed UniFi OS Settings to UniFi OS Control plane, previously only visible via Site Manager.

Bugfixes

• 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.
• [UCK-Enterprise] Fixed port speed setting issues for the SFP port.

UniFi OS 4.0.20 includes the improvement listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.3.32
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.3.32
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.3.32
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved device stability.

UniFi OS 4.0.18 includes the improvements and bugfix listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.3.32
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.3.32
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.3.32
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Improved Remote Access connection resiliency.
• Improved username validation when creating a UI Account through the setup wizard.
• [UCK-Enterprise] Improved device stability.

Bugfixes

• Fixed an issue where applications may not be reinstalled after upgrading in rare cases.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.3.28
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.3.28
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.3.28
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• [UCK-Enterprise] Improved SFP auto-detection.

Bugfixes

• [UCK-G2/UCK-G2-Plus] Fixed stability issues introduced in 4.0.6 in rare cases.

UniFi OS 4.0.6 includes the improvements and bugfixes listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.2.93
• UniFi Protect
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.2.93
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.2.93
• UniFi Identity Enterprise
• UniFi InnerSpace

Improvements

• Added system logs when admins reboot the console.
• Added owner transfers to System logs.
• Added Identity Standard System Logs.
• Added ability to format the HDD/SSD storage when performing a factory reset.
• Added support for IPv6 addresses for the local portal.
• Allow using Identity when Remote Access is disabled.
• Allow Full Management users to trigger firmware updates.
• Allow removing and deactivating users/admins when Identity is deactivated.
• Improved internet status checks.
• Improved storage resiliency.
• Improved UniFi Identity user experience.
• Improved downloading support files.
• Improved initial user list loading speed.
• Improved device stability.
• Improved SFP link stability after reboots/upgrades.
• 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 application installation resiliency.
• 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 touchscreen during night mode when there is an active user session.
• Don't automatically enable One-Click WiFi when activating Identity.
• Don't show One-Click VPN/WiFi when the service is disabled.
• Users/Groups now automatically get an invitation after assigning resources to them.
• Allow importing users with email via CSV files.
• Updated HDD reference in push notifications, it will now refer to drives.

Bugfixes

• Fixed an issue where Auto Update settings weren't restored after restoring a backup.
• Fixed systemd-networkd-fallbacker log spam.
• Fixed an issue where re-activated admins couldn't reach the console through unifi.ui.com.
• Fixed incorrect temperature values being reported in the OS Settings.

UniFi OS 3.2.12 includes the bugfixes listed below.

Available Applications for the UCK-G2-Plus

• UniFi Network 8.0.28
• UniFi Protect 2.9.42
• UniFi Identity Enterprise
• UniFi InnerSpace
• UniFi Talk
• UniFi Access
• UniFi Connect

Available Applications for the UCK-G2

• UniFi Network 8.0.28
• UniFi Identity Enterprise
• UniFi InnerSpace

Available Applications for the UCK-Enterprise

• UniFi Network 8.0.28
• UniFi Identity Enterprise
• UniFi InnerSpace

Bugfixes

• Fixed the inability to send Identity Standard invites.
• Fixed redundant logging to /dev/tty10.