As of my last update in January 2022, LDPlayer 4.0 was the latest version available, and it did support 64-bit architecture. However, since software is continuously updated, there might have been newer versions released after that time. To find the latest version of LDPlayer that supports 64-bit architecture, I recommend visiting the official LDPlayer website or checking trusted software download platforms. These sources should provide you with the most up-to-date information and downloads for LDPlayer. Additionally, make sure to download software from official sources to ensure safety and compatibility with your system.