Anyconnect 5.0 Release Notes -

The Umbrella module has been completely rewritten. Instead of a separate client, AnyConnect 5.0 merges the Umbrella roaming security logics into the core VPN agent. This eliminates the previous "double tray icon" confusion and enables DNS-layer security even when the VPN tunnel is down (always-on protection).

Read this section carefully before upgrading. Several legacy modules no longer exist in 5.0. anyconnect 5.0 release notes

Elias hesitated. The name "AnyConnect" felt like an old friend. Clicking "Update" felt like saying goodbye. But as the progress bar crawled across the screen, the old white-and-blue globe vanished, replaced by a sleek, modern shield. The Umbrella module has been completely rewritten

Direct upgrade from AnyConnect 4.10.x or 4.9.x is supported on Windows 10/11 and macOS 11+. Upgrades from 4.8 or earlier must first upgrade to 4.10. Read this section carefully before upgrading

He clicked "Connect." The interface was snappier, the authentication through the new SecureX portal

AnyConnect 5.0 (Cisco Secure Client) is compatible with a wide range of modern operating systems, though it drops support for some legacy versions.