Advisories & Notices

September 29, 2026

The new C-460D Access Points are shipped with firmware version 23.0.0F-23. Between supplying the ODM production image and the General Availability (GA) release, the Arista engineering team added key stability fixes to the 22.xx.xx release train. As a consequence, the team decided to designate firmware version 22.3.xx branched out of the 22.xx.xx release train as the GA candidate for the C-460D platform.

August 19, 2026

This notice serves to inform you that C-200 Access Points on firmware version 21.4.0M-12 have been found to experience recurrent system restarts. This build has hence been removed from the list of available builds for the C-200 platform. It is important to emphasize that only the C-200 platform is impacted by this issue. 

August 18, 2026

This field notice is regarding deprecation of EOS SWAG “rpr” redundancy mode. This is being replaced by “sso” redundancy mode.

August 6, 2026

Under rare circumstances, a CloudVision cluster may replay CLI commands to devices. This can happen without user intervention and may result in unintended changes to network devices. Three specific conditions are required for this to occur.

July 21, 2026

This field notice is for customers running CloudEOS instances in Microsoft Azure. Microsoft has recently introduced a new type of networking infrastructure called Microsoft Azure Network Adapter (MANA) and is looking to transition customers to it beginning August 1, 2026. Customers can defer this transition until May 31, 2027 by opting out.

July 2, 2026

This notice serves to inform you that C-460 Access Points on firmware versions 21.3.0M-8 & 21.3.0M-9 experience recurrent system restarts resulting from a beacon loss condition.

June 18, 2026

Notification about Intel Wi-Fi 7 BE201 Windows client roaming failures. The roaming failure occurs only with the particular client type and configuration settings mentioned above. Moreover, the failure does not occur every time the client roams; it is observed in about  50% of the roaming attempts.

June 16, 2026

This notice serves to inform you of about the roll back of AP firmware version 21.1.0F-81. Customers are advised to upgrade to the latest firmware version 21.1.0F-81.5 in this release train.

May 11, 2026

CloudEOS uses the Azure Instance Metadata Service (IMDS) to validate the authenticity of the instance in order to generate licensing for specific features including IPsec. The IMDS service uses a certificate chain provided in the Microsoft PKI repository. Every other year Microsoft issues new certificates that must be added to the CloudEOS certificate trust database. If these certificates are not updated in CloudEOS then the instance will not be able to successfully validate the instance which causes the license to expire. As a result, all IPsec tunnels will become disabled and bandwidth will be throttled to 80 Mbps until licensing is restored.

May 5, 2026

Changes to the Access Point Auto Upgrade Default Option in CV-CUE

This field notice is to inform of a change in the default value of the SYSTEM → Advanced Settings → Allow Arista to Upgrade Access Points → Enable checkbox on CV-CUE.