Driver updates are rarely just about adding new features. The V5 iteration focuses heavily on backend stability and modern system integration. Key advancements in this version include:
Go to Control Panel -> Sound and ensure the SONY USB DAC Amplifier is selected as the default playback device. Uda V5 Driver
Which (e.g., Windows 11, Windows 10, or Linux) are you installing it on? Driver updates are rarely just about adding new features