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The OpenVPN GUI is now packaged in the Windows installer. Extensions were made to Management Interface to allow greater programmatic control of the OpenVPN client and server. A topology subnet option was added, allowing intuitive tun-based VPN subnets having one IP address per client. DHCP proxy support was added for Windows clients using the route-gateway dhcp option. PKCS #11 features were added for using cryptographic tokens ("smart cards"). A multihome option was added to enable UDP-based multihoming of the server on multiple interfaces. A port-share option was added to allow OpenVPN and an HTTPS server to share TCP port 443.

Remaining issues with TAP driver signing on Vista x64 were worked out. OpenVPN will now run on Vista x64 with driver signing enforcement enabled. A 64-bit portability bug in the time_string function was fixed.

The Windows installer was updated with OpenSSL 0.9.7l DLLs to fix published vulnerabilities. A TAP-Win32 bug that caused a BSOD on Windows Vista was fixed. The TAP-Win32 driver was upgraded to version 8.4.

This release improves scalability and offers centralized management for VPN configurations supporting a large number of clients. It adds load balancing and failover support, a new management interface providing real-time control of running OpenVPN daemons, and major revisions to the documentation, including a complete rewrite of the HOWTO.

This release includes the long-awaited port of OpenVPN to Windows 2000/XP, adding to OpenVPN's already wide cross-platform span, which includes Linux, *BSD, Mac OS X, and Solaris. In this beta, Win32 installation has been greatly streamlined with the completion of a self-installing exe, based on the Nullsoft install system. In addition, TCP support has been added as a tunnel transport option.