Seven reference files under reference/. Scan the trigger lists, open the matching file.

reference/valkey-features.md

Version-gated commands, per-release changelog, Redis compatibility, RDB magic, module gap.

Triggers: SET IFEQ, SET IFGT, SET IFLT (8.1+), DELIFEQ, DELIFGT, DELIFLT (9.0+), CAS, compare-and-swap, safe lock release, replication rewrite to SET/DEL, GET flag ambiguity, WRONGTYPE, byte-exact comparison, IFEQ never creates missing key.

Triggers: hash field TTL, HSETEX, HGETEX, HEXPIRE, HPEXPIRE, HEXPIREAT, HPEXPIREAT, HTTL, HPTTL, HEXPIRETIME, HPEXPIRETIME, HPERSIST, FNX, FXX, NX/XX/GT/LT on fields, KEEPTTL, setter return codes (1/2/0/-2), HTTL codes (-1/-2), HGETALL filters expired, HLEN does not filter, HINCRBY rewrites to HSETEX.

Triggers: COMMANDLOG GET/LEN/RESET/HELP (8.1+), commandlog-execution-slower-than, commandlog-request-larger-than, commandlog-reply-larger-than, slow / large-request / large-reply categories, SLOWLOG legacy alias, REQUEST_POLICY ALL_NODES, RESPONSE_POLICY AGG_SUM.

Triggers: GEOSEARCH BYPOLYGON (9.0+), num-vertices, auto-closed polygon, WITHDIST centroid, antimeridian, GEOSEARCHSTORE, Web Mercator lat limits.

Triggers: numbered DBs in cluster (9.0+), cluster-databases, MOVE reply 0 ambiguity, per-node SCAN/FLUSHDB/DBSIZE.

Triggers: atomic slot migration (9.0+), CLUSTER MIGRATESLOTS, CLUSTER GETSLOTMIGRATIONS, CLUSTER CANCELSLOTMIGRATIONS, no ASK window, valkey-cli --cluster reshard still legacy.

Triggers: dual-channel replication (8.0+), dual-channel-replication-enabled, MPTCP (9.0+), mptcp, repl-mptcp, kernel 5.6+.