Legacy release notes

Axon Interview 4.18 Hotfix-3

Axon Interview 4.18 Hotfix-3 is the latest refinement of 4.18 prior to General Availability (GA). It addresses targeted customer-reported issues and improves overall system reliability.

The upgrade is available via the Axon Server Updater and can be downloaded at my.axon.com. The upgrade typically takes 30–60 minutes. Interview rooms connected to servers being updated will be unavailable during this time.

Supported versions

Axon supports the four most recent software releases. Organizations on earlier versions must upgrade to a supported release before Axon can provide further troubleshooting assistance.

Version	Status	Notes
4.18	Current GA Release	Recommended for all organizations using Axon Evidence cloud.
4.16	Maintenance Support Release	For organizations using Evidence Local. Organizations on earlier versions must upgrade to a supported release before Axon can provide further troubleshooting. Contact Axon support before updating.

Resolved issues in 4.18 Hotfix-3

• Resolved an issue where interview sessions could fail to start recording under certain I/O module connectivity conditions.
• Corrected a condition that could result in incomplete media segment finalization and prevent uploading in specific environments.
• Improved handling of intermittent server or network disruptions that could cause an active session to disconnect or prevent a new interview from starting.
• Resolved an issue where certain configuration updates could cause the Interview Server service to stop, preventing new interviews from being created until the service was restarted.
• Corrected a livestreaming condition where version validation warnings could briefly appear when connecting to multiple server pairs, despite normal connectivity.
• Improved handling of offline or unavailable cameras and devices to prevent extended startup times, error dialogs, or delays when creating a new interview.
• Updated Interview Server service recovery configuration to automatically attempt a single restart in the event of an unexpected service failure. This setting can be adjusted in Windows Service Manager.
• Added support for Axis OS 12 firmware, required for the Axis P3275 (which replaces the P3265 for new installations).
• Suppressed health check warnings that could generate false positives. These will continue to be logged for further refinement.
• Improved server startup performance.

Deprecated features in 4.18

• Continuous recording — Deprecated due to lack of use. Organizations using this mode were automatically moved to Event-Based with Buffer during the upgrade.
• Post recording — Deprecated due to lack of use. This feature will be removed in a future release. Contact Axon support if your agency has questions about this change.

Key capabilities in 4.18

Automatic failover — Paired servers create independent recordings simultaneously. If one server is disrupted, the other continues recording and uploads to Axon Evidence without manual recovery.

Recording Integrity Monitoring — Automated validation verifies that interviews properly start, actively record, and close as expected. Background health checks monitor system availability between sessions.

Security updates — Updated code signing certificates and support for agency-owned encryption certificates for secure inter-device communication.

Axon Interview 4.16 maintenance update

A maintenance release for 4.16 includes an updated code signing certificate and minor bug fixes. Organizations using Evidence Local must remain on version 4.16.

Technical support

If your organization observes behavior not described in these release notes or has questions about your deployment, contact Axon support.

Region	Contact
US and Canada	800-978-2737
UK	+44 01327 709 666
Australia	1-800-512-069
New Zealand	+64 0800-005-161
Email	support@axon.com