OS Version 4.6.1

Summary

Release Date: July 23, 2026

The EOS 4.6.1 release focuses on bug fixes and continued security improvements.

271 – Resolved a system crash that occurred when traffic was configured to use the Reversed Weight First Algorithm (RWFA) path selection method.
272 – Enabling the Persistence feature disrupted NAT traffic processing.
273 – Executing the no acl per int + ip command without specifying an index value caused the VFI module to crash.
278 – Fixed an issue where ICMP ACLs failed to match incoming ICMP packets.

225 – The FPI engine is sometimes unable to identify traffic for certain applications such as Youtube or TikTok. As a result, policies intended to block Youtube or TikTok are not enforced consistently, and the application may bypass configured restrictions.
254 – When enabling the netconsole feature on the CPE, ensure that a serial console cable is not connected to the device. Enabling netconsole increases the logging level and could overwhelm the CPU of the CPE, causing its network interfaces to be reset.
260 – Upgrading a CPE from a remote web GUI session is not supported. Attempting to do so will result in the upgrade to fail. Web GUI upgrades from a local LAN connection are, however, supported.

Hardware Devices

Virtual Devices