The article is about Automatic Device Encryption via BitLocker, which Microsoft refers to as "Auto-DE", and a particular section of this document was updated to reflect why TPM and Secure Boot are required for Device Encryption.
Microsoft lists a reason why TPM, Secure Boot are required on Windows 11 in 2024-2025
Microsoft lists a reason why TPM, Secure Boot are required on Windows 11 in 2024-2025