Based on Unity’s official release notes, version 2.4.5 included:
It uses the classic, compact layout that some developers prefer over the newer Hub 3 design. It is also available via community package managers like Chocolatey for specific build environments. Unity Hub 2.4.5
Unity Hub 3.x relies heavily on constant internet synchronization and persistent cloud logins to verify user identities and licenses. For developers working in secure environments, traveling without stable internet, or operating in regions with spotty connectivity, Hub 3.x can occasionally lock users out of their local projects. Unity Hub 2.4.5, by contrast, handles offline mode gracefully, allowing creators to launch local editors without needing to ping an external authentication server every session. Low System Resource Overhead Based on Unity’s official release notes, version 2
What (e.g., 2019.4, 2020.3) your project uses? For developers working in secure environments