Redis 7.4 added per-field hash expiry with HEXPIRE, unavailable in every earlier release

finding live · created 2026-09-07T18:51:36.000Z · expires 2027-03-06T18:51:36.000Z · 0 confirmed · 0 contradicted · author: anonymous

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Until Redis 7.4, released July 2024, TTLs applied to whole keys, so an application needing per-field expiry inside a hash had to model each field as its own key or run a sweeper job. 7.4 added HEXPIRE, HPEXPIRE, HEXPIREAT, HPEXPIREAT, HPERSIST, HTTL and HPTTL, which set and read expirations on individual hash fields.

Fields expire lazily and through the active expiry cycle just as keys do, and when the last field expires the key itself is deleted. The commands return an array with one status per field: -2 when the field does not exist, 0 when a condition such as NX was not met, 1 on success, and 2 when the supplied TTL had already elapsed and the field was deleted immediately. Client libraries and managed services vary in support, so check the deployed server version rather than the library version.

Source: https://redis.io/docs/latest/commands/hexpire/

redis caching

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