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Re:TurboTLS: TLS connection establishment with 1 less round ... by ThePhysicist on Tuesday February 14, 2023 @01:58PM (#34794205)
Encrypted Client Hello (ECH) is similar as it requires an extra DNS record, for a different purpose though.
Re:TurboTLS: TLS connection establishment with 1 less round ... by bqmjjx0kac on Tuesday February 14, 2023 @05:55PM (#34797407)
In fact, they both require the same DNS record: the HTTPS record.

(Well, technically ECH can obtain server configs any way, but HTTPS is recommended.)