Redis: Storage Overhauls and a Security Patch
Redis merged two major storage features — hinted hash templates for memory savings and MP-AOF-based backup and restore — alongside a security fix closing ACL bypasses in SORT, GEORADIUS, and stream read commands.
Duration: PT2M34S
Episode overview
This episode is a short developer briefing from Redis.
It explains recent repository work in plain language.
- Show: Redis
- Published: 2026-07-18T13:10:52Z
- Audio duration: PT2M34S
Transcript excerpt
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This is Redis, your daily developer briefing for July 18th, 2026.
Today's biggest story is a pair of major storage features landing on the same day, plus a security fix worth flagging to anyone managing access control.
First, security. PR #15478 from Sergei Georgiev closes a real permission bypass. Commands like GEORADIUS, GEORADIUSBYMEMBER, SORT, and the stream readers XREAD and XREADGROUP were checking ACL permissions against the wrong key in certain cases — for example, a forbidden key smuggled in as a second STORE argument…
Second, two big infrastructure additions from the same day. PR #15441, Backup and Restore, gives Redis a node-side backup mechanism built entirely on Multi-Part AOF — no new format. It introduces a BACKUP command family: START, STATUS, LIST, SEAL, ABORT, and CLEANUP, letting cluster deployments stagger snapshot…
Alongside it, PR #15364 introduces hinted hash templates — a memory optimization for hashes that share field layouts, like one hash per user. Instead of every key storing its own copy of field names, Redis stores the shared layout once and reuses it. Early benchmarks in the PR show close to fifty percent memory…
Rounding out the day: PR #15467 fixes a…
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