Release Notes for Update 2 for RTX64 4.0

This update for RTX64 4.5 adds support for Windows 10 Feature Update Version 2004 and resolves various issues as detailed below. This is a cumulative update that contains all of the fixes included in Update 1 for RTX64 4.0.

New Features

• Adds support for Windows 10 Feature Update Version 2004 (Windows 10 June 2020 Update). (9490)

NOTE: Due to changes in Windows 10 Feature Update Version 2004 and how RTSS is able to communicate with Windows, RTSS-to-Windows interaction is several times slower than with other supported Windows 10 updates. As a result, you may notice slower interactions between RTSS and Windows, such as during inter process communication (IPC) between an RTSS process and Windows process, or when using the RTX64 Virtual Network. Slower Virtual Network performance is more likely to occur on systems where only one processor is assigned to Windows.

• Adds support for additional devices to the RtNalIGB driver. See the RTX64 Supported NICs document for the complete list of supported devices. (9508)
• Adds support for additional devices to the RtNalIPCH driver. See the RTX64 Supported NICs document for the complete list of supported devices. (9505)

Issues Resolved

• Resolves EEPROM checksum errors with the RtNalI10GB driver.
• Resolves an issue where incorrect values were read from the PCI config space for the CheckForNetworkCard routine in the RtNalI10GB and RtNalIPCH drivers. (9498)
• Resolves interrupt latencies caused by too many concurrent SMIs (System Management Interrupts) generated by the UEFI BIOS and other software. (9496)
• Resolves an issue where RTX64 would sometimes change the system power scheme during Windows shutdown, resulting in a system hang. (9494)
• Provides an updated Rtx_rtss.lib object file library, available in the Update_2_for_RTX64_4.0_SYMBOLS_09302020.zip on the Support site, which resolves build errors that resulted when building applications containing C++ STL (Standard Template Library) classes in Visual Studio 2019 version 16.6. (9492)

Notes

• The maximum allowed UDP/ICMP echo datagram payload was decreased from 65527 bytes to 65507 bytes. (9329)