While we strongly encourage all developers and users to migrate to modern versions of TLS (1.2 and 1.3), some Google services continue to support TLS 1.0 and TLS 1.1 to maintain compatibility for users on older devices or behind legacy middleboxes.
Why do many Google Services still allow connections using TLS 1.0 and TLS 1.1?
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Last updated 2026-04-14 UTC.
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