Spark: 3.3.4 → 3.5.7

Upgrade impact: Minor upgrade. Minor releases are usually backwards-compatible, but can add or change behaviour — test in staging before production.

Fixed by upgrading to 3.5.7 iVulnerabilities that affect 3.3.4 but no longer affect 3.5.7 — the security gain from this upgrade, by exploited status then exploitation probability.

Exploited first, then by exploitation probability (EPSS).

Still open in 3.5.7 iKnown vulnerabilities that affect 3.5.7 too — upgrading to it does not clear these.

These affect 3.5.7 as well — a later release may be needed.