6.5.1 Appliance

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Released June 27 2025

New Features

Gateway

  • The max size of the Java heap size of the Session daemon is now configurable. See the cz-config section in the Admin guide for details.

Application Discovery

  • Added a new "Configure" action allowing users to filter the display of the Discovered apps.

Admin UI

  • Active Sessions are now possible to renew in bulk.

  • Policies and  are now possible to export in bulk.

Updates

Security

  • Fixed an issue in which, under certain corner case conditions, multiple users may be assigned the same session identifier, potentially allowing a guest user to gain visibility to a logged-in user's Portal Client user interface.

  • Removed unused ability to log in to Azure Monitoring using client assertion via a certificate file.

Appliance

  • Fixed an issue in which DHCP routes were applied even though they were configured not to.

Upgrades

  • Fixed an issue in which upgrades from 6.4.6 or later would fail.

  • Fixed an issue in which old configuration backups would fill the disk after multiple upgrades.

Controller

  • Fixed an issue in which some database conflicts showed up as warnings despite the conflicts being auto-resolved.

  • Fixed an issue in which FIDO2 authentication failed when there were multiple devices with the same username and different Identity Providers.

  • Fixed an issue in which the Controller is reported to not be running when the Risk Engine integration is enabled and the Controller cannot reach ZTP.

Portal

  • Fixed an issue in which the session would timeout after 5 minutes unless there is traffic to the endpoint or a Portal tab is kept open.

Gateway

  • Fixed an issue in which Gateways sometimes fail to reload the GeoIP database when a new database is available.

  • Fixed an issue in which the VPN daemon under certain conditions could crash on the shutdown part of a restart, resulting in a core dump on the Gateway.

  • Memory usage was improved for the Session daemon.

Name resolving

  • Fixed an issue in which no IPs were returned if there was a partial error in the resolving.

  • The AWS resolver distributes the update API calls with a randomized jitter of up to 15 seconds to avoid spikes in traffic to AWS in case the system has multiple Accounts.

  • Fixed an issue in which unstable DNS Names continued producing dashboard warnings even after being removed from the Entitlement.

  • Fixed an issue in which the DNS Entitlement Names were resolved for all matching domains instead of only for the longest (best) match.

  • Support was added for unicast ARP requests.

LogForwarder/LogServer

  • Fixed an issue in which high load would make the LogForwarder stop accepting logs for short periods of time.

  • Reduced the severity of non-critical LogForwarder/LogServer Appliance healthcheck warning/error messages.

Admin messages

  • The Admin messages for when an Appliance joins the Collective and when a User fails to log in due to a missing Policy were removed. These events can be detected using Audit logs or metrics.

Metrics

  • Fixed two issues related to apn_audit_events:

    • LogForwarder and LogServer Appliances included forwarded log entries in the count.

    • The other Appliances did not include a count at all.

  • Fixed an issue in which the Client metrics aggregate statistics included inactive sessions.

  • The apn_audit_event_log_stat metric was replaced by lf_audit_logs on the LogForwarder and log_audit_logs on the LogServer.

Audit logs

  • Fixed an issue in which the session-duration field of acl_rules_update and tunnel_closed audit logs wasn't set to 0 when a session was disconnected.

Application Discovery

  • Updated the Application discovery list and details to display more relevant data:

    • A new "Additional data" tab was added to display IP Addresses and originating Entitlements of the discovered application.

    • The "Groups in common" tab was replaced with a Groups tab showing all groups and how large percentage of the accessing users that is in each group.

  • The Configure access flow of Application Discovery was improved to allow:

    • Creating Entitlements disabled or enabled and with Tags.

    • The created Entitlements can be connected to none, existing, or newly created policies.

Admin UI

  • Fixed multiple issues in which popups and dropdowns were partially covered by other elements.

  • Fixed an issue in which tags were not updated when refreshing a list.

  • Fixed an issue in which tag ordering was inconsistent on different pages.

  • Fixed an issue in editable lists where duplicate items were impossible to delete.

  • Updated the display of the LDAP Certificates list to show the subject names.

  • User Settings was re-labeled and folded into Sign-in Settings for Local and Service Identity Providers.

  • Fixed an issue in which the breadcrumb and heading wouldn't reflect the action when cloning.

  • Fixed an issue in which the search bar wouldn't close in some cases.

  • Fixed an issue in which the privileges display broke when cloning or adding an admin privilege.

  • Fixed an issue in which the table headers were hidden behind search pills on scroll.

  • Fixed an issue in which the Site selection dropdown in Acitve Session Details wasn't alhpabetically sorted.

  • Fixed a display issue in which multiple hosts in an Exclude Action were displayed without commas.

  • The Criteria Builder heading was updated to "Criteria Builder" instead of "Remedy".

  • Fixed an issue in which Policies with Ringfence Rules by Tags wouldn't show in Session Details' Policy Assignement Analysis.

  • Improved accessibility around tags and the tag modal.