Falco

0.44.0Security

2026年5月26日リンクをコピー

Falco 0.44.0 drops three long-deprecated features (gRPC output, gVisor engine, legacy BPF probe) and adds expressive rule engine improvements. Deployments using any of these must migrate before upgrading.

• breakingThree features dropped — check your config before upgrading

  Three major removals land in this release: gRPC output/server, gVisor engine, and the legacy BPF probe. If you rely on gRPC-based output consumers, you need an alternative output path (e.g., JSON over HTTP, or a sidecar) before upgrading. gVisor users must switch to a supported engine. Legacy BPF users should move to the modern eBPF probe. Audit your current config for any of these before touching 0.44.0 in production.

• securityfalco-webui restricted to local access — check external tooling

  The falco-webui Docker service now restricts access to localhost only. If you had it exposed on a broader interface, that changes on upgrade. This is a net positive for most deployments, but verify any tooling or dashboards that reached the webui over the network still work after the upgrade.

• enhancementRicher rule syntax — review custom rules for validation errors

  The rule engine now supports oneof/allof/anyof string comparator modifiers, and rules can use list transformer exceptions. These let you write tighter, more expressive detection rules without duplicating conditions. If you maintain custom rules, review whether these can replace existing workarounds. Also, Falco now validates unknown keys in rules — so rule files with typos or unsupported fields will produce warnings or errors instead of silently being ignored.