HeliosDB Full v7.3.0 Release Notes

Release Date: 2026-03-31 Theme: AI-native protocols + WordPress / MySQL compatibility

Highlights

v7.3.0 closes 21/21 outstanding WordPress + MySQL compatibility issues, adds 30 AI-native Redis commands, exposes 9 MongoDB AI commands, and ships the S3-compatible HTTP gateway (Phases S1–S8). Three additional protocol listeners (MongoDB, Cassandra, Oracle) come online.

What’s New

WordPress / MySQL Compatibility (21/21 issues resolved)

Backtick identifiers — ` auto-converted to " for MySQL clients.
SET NAMES / SET SESSION — silently accepted for driver compatibility.
SELECT @@variable — returns correct values for 8+ MySQL system variables (e.g. @@version, @@sql_mode, @@session.tx_isolation).
AUTO_INCREMENT — keyword stripped (SERIAL used internally).
LAST_INSERT_ID() — returns max auto-increment from session.
DATE_FORMAT() — MySQL format specifiers: %Y, %m, %d, %H, %i, %s.
MySQL AuthMoreData — caching_sha2_password fast-auth-success (0x03) packet enables PHP mysqli.
DDL persistence — CREATE TABLE schemas saved to LSM storage.
PK uniqueness — enforced against existing storage data (lazy-load pk_index).
VERSION() interception — fixed to only match SELECT VERSION(), not column names.

Stock WordPress now connects via native mysqli — zero db.php shim, zero plugin changes.

AI-Native Redis Commands (30 new, 134+ total)

Vector Search: VCREATE, VADD, VSEARCH, VDEL, VINFO, VCARD.
RediSearch compat: FT.CREATE, FT.SEARCH, FT.INFO, FT.DROPINDEX.
TimeSeries compat: TS.CREATE, TS.ADD, TS.GET, TS.RANGE, TS.INFO.
ML Inference: AI.ANOMALY, AI.PREDICT, AI.EXPLAIN, AI.STATUS.
Natural Language: NL "query in english".
Cache Intelligence: CACHE.STATS, CACHE.WARMUP, CACHE.POLICY.

MongoDB AI Commands (9 new)

vectorSearch, nlQuery, aiStatus, aiAnomaly, schemaAnalyze, indexRecommend.
Plus dbStats, collStats, currentOp.

S3-Compatible Object Storage (Phases S1–S8)

HTTP gateway: PUT / GET / DELETE / HEAD objects, CreateBucket, ListObjectsV2.
Bucket SQL: CREATE BUCKET, DROP BUCKET, SHOW BUCKETS, ALTER BUCKET SET LIFECYCLE, ALTER BUCKET SET VERSIONING, ALTER BUCKET SET LOCK.
Compliance: Object Lock, Legal Hold, WORM compliance.
Presigned URLs via SQL: SELECT presign_url('bucket','key',3600);
Natural-language policy: ALTER BUCKET SET POLICY 'keep GDPR data in EU only';
Threat scan on ingest: x-helios-threat-status response header.
Migration: MIGRATE BUCKET FROM 'endpoint' BUCKET name.

Protocol Listeners (3 new)

MongoDB — --enable-mongodb, port 27017.
Cassandra — --enable-cassandra, port 9042.
Oracle — --enable-oracle, port 1521.

Redis Enhancements

EVAL / EVALSHA Lua scripting via LuaScriptExecutor.
SORT, DUMP / RESTORE, WAIT.
ACL commands: WHOAMI, LIST, GETUSER, CAT.

Migration

Wire-compatible with v7.2.x. WordPress users who previously used a db.php shim can remove it after upgrading. Operators enabling the new protocol listeners (--enable-mongodb, --enable-cassandra, --enable-oracle) should ensure firewall rules cover the new ports.

S3-gateway buckets are managed via the SQL surface — existing object stores remain reachable through the HTTP gateway.

Compatibility Matrix

Component	Version
PostgreSQL wire	v3
MySQL wire	v10 (incl. `caching_sha2_password`)
MongoDB wire	v6 (BSON)
Redis protocol	RESP2 + RESP3, 134+ commands
Cassandra	CQL v3/v4/v5
Oracle	TNS / PL-SQL DML
S3 API	Compatible subset (Phases S1–S8)
WordPress	Stock `wpdb` (no shim)
Crate count	193

See CHANGELOG.md for the workspace-level entry.