I am no Ledger Nano X user but they added an enhanced security and UI update!
Security Enhancements and Further AdditionsThe largest reason for this firmware update is a patch to a minor vulnerability.
Now rest assured that your recovery phrase, private keys and funds are not at risk. The vulnerability targets the MCU chip, while the security of the Ledger Nano X is based on the
Secure Element (for storing critical data like your recovery phrase / PIN). Since the Secure Element is not impacted, your funds remain secure – even without performing the firmware update. The firmware update brings an update to the MCU chip to help in mitigating this. It also includes an enhancement to the Secure Element, which will now check the authenticity of the code running on the MCU. The two combined fully patch this vulnerability. Should you prefer to have a more detailed version of this vulnerability and security patch, we recommend checking out this
article.
Some further additions include:
- Added mandatory regulatory information in the device’s settings menu
- Added cryptographic support for the Stark 256 curve. This will allow the support of Starkware applications.
- Added cryptographic support for the BLS12-381 curve
Major UX enhancementsWe have improved the update flow for the Ledger Nano X. With the Ledger Nano S, users had to disconnect and reconnect their device at least once in the process. This will not be the case for updating your Ledger Nano X.
For another, apps that were installed on your Ledger Nano X prior to the firmware update will be automatically uninstalled and reinstalled. This major UX enhancement will be a huge timesaver to our users, as well as it now being a fully automatic process.
Source: https://www.ledger.com/first-ever-firmware-update-coming-to-the-ledger-nano-x?utm_source=Twitter&utm_medium=Social&utm_campaign=LNX%20FW%20Update