Background
The 4.21.0 deprecation audit (#2830, fixed in #2886) removed the deprecated endpoint options it found (pulsar-sink / slack-sink). It also found three Kamelets using deprecated Camel components that have no safe drop-in replacement, so they were intentionally left for a maintainer/PMC decision rather than a breaking change.
Components needing a decision
json-patch-action → camel:json-patch (deprecated): no replacement component exists in the Camel 4.21 catalog.mqtt-source, mqtt-sink → camel:paho (MQTT v3, deprecated): the only sibling is camel:paho-mqtt5 (MQTT v5 — a protocol change), and mqtt5-source / mqtt5-sink already provide v5. Migrating would break v3 users or duplicate the v5 Kamelets.splunk-sink, splunk-source → camel:splunk (deprecated): splunk-hec is publish-only and config-incompatible; splunk-source (search) has no HEC equivalent, and splunk-hec-sink already covers HEC publishing.
Options per component
- Deprecate the affected Kamelet(s) (e.g. label/annotate, document) and steer users to alternatives where they exist.
- Accept the behavioural change (e.g. migrate
mqtt-* to MQTT v5) — needs an upgrade-guide note.
- Keep as-is until the component is actually removed upstream in Camel, then revisit.
No action is required in the catalog until Camel removes these components; this issue tracks the decision so the deprecations are not forgotten.
AI-generated by Claude Code on behalf of Andrea Cosentino (@oscerd)
Background
The 4.21.0 deprecation audit (#2830, fixed in #2886) removed the deprecated endpoint options it found (
pulsar-sink/slack-sink). It also found three Kamelets using deprecated Camel components that have no safe drop-in replacement, so they were intentionally left for a maintainer/PMC decision rather than a breaking change.Components needing a decision
json-patch-action→camel:json-patch(deprecated): no replacement component exists in the Camel 4.21 catalog.mqtt-source,mqtt-sink→camel:paho(MQTT v3, deprecated): the only sibling iscamel:paho-mqtt5(MQTT v5 — a protocol change), andmqtt5-source/mqtt5-sinkalready provide v5. Migrating would break v3 users or duplicate the v5 Kamelets.splunk-sink,splunk-source→camel:splunk(deprecated):splunk-hecis publish-only and config-incompatible;splunk-source(search) has no HEC equivalent, andsplunk-hec-sinkalready covers HEC publishing.Options per component
mqtt-*to MQTT v5) — needs an upgrade-guide note.No action is required in the catalog until Camel removes these components; this issue tracks the decision so the deprecations are not forgotten.
AI-generated by Claude Code on behalf of Andrea Cosentino (@oscerd)