The specific designation references a version of the YouTube application package (APK) intended for the Android operating system. The alphanumeric string “20.07.39” denotes the build number, indicating a particular iteration of the software released at a specific point in its development cycle. This version represents a complete, installable application file for YouTube, designed for devices running the Android platform.
Accessing a precise application version can offer certain advantages, such as compatibility with older devices or the preservation of specific features present in that build. Historically, users have sought out particular versions to avoid unwanted updates, maintain a preferred user interface, or circumvent enforced restrictions implemented in later releases. This can be particularly relevant for users with older hardware where newer application versions may suffer from performance issues.