DDS vs MQTT vs OPC UA in 2026 — QoS, discovery, security, broker vs brokerless, and a decision matrix for picking the right industrial messaging protocol by use case.
MQTT 5.0 features that actually move the needle — shared subscriptions, topic aliases, flow control, user properties, reason codes, and the 2026 production patterns to use them.
The 2026 map of IoT and industrial communication protocols — MQTT, OPC UA, Modbus, CAN, Ethernet/IP, BACnet, LoRaWAN — and how to pick the right stack by layer and use case.
Step-by-step production tutorial for bridging MQTT to Kafka with the Lenses MQTT Source connector — schema mapping, QoS handling, Sparkplug B decoding, and HA topology.
OPC UA Pub/Sub architecture compared — UDP UADP for deterministic LAN delivery vs MQTT for cloud-friendly fan-out. Mappings, message security, and when each wins.
AsyncAPI 3.0 architecture — channels, operations, and messages for MQTT, Kafka, AMQP, and WebSocket APIs. Full example spec, code-gen, and governance pattern for 2026.
Living benchmark — MQTT, CoAP, AMQP, and HTTP/3 measured under identical test conditions. Latency, throughput, power, and payload overhead. Updated April 2026.