First and foremost, Tails 4.8 ships with the Linux 5.6 kernel series, which should add a new layer of hardware support, especially when running Tails on computers with newer components like Wi-Fi or graphics. Starting with this release, Tails no longer enables the Unsafe Browser by default, which could be used by attackers to deanonymize you due to a security vulnerability in another application. According to the Tails developers, it’s unlikely that this type of attack will occur when running Tails, but it can be performed by a hacking firm or a government entity of they want to deanonymize you.