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CAMEL-23511: doc-sync 4.18 upgrade guide for camel-jgroups-raft header rename #23227

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May 15, 2026
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CAMEL-23511: doc-sync 4.18 upgrade guide for camel-jgroups-raft header rename #23227

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30 changes: 30 additions & 0 deletions docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_18.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,36 @@ have been renamed accordingly:
* `qUERY()` -> `luceneQuery()`
* `returnLuceneDocs()` -> `luceneReturnLuceneDocs()`

=== camel-jgroups-raft

The Exchange header constants in `JGroupsRaftConstants` have been renamed to
follow the Camel naming convention used across the rest of the component
catalog. The Java field names are unchanged; only the header string values
have changed:

[options="header"]
|===
| Constant | Previous value | New value
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_LOG_SIZE` | `JGROUPSRAFT_LOG_SIZE` | `CamelJGroupsRaftLogSize`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_COMMIT_INDEX` | `JGROUPSRAFT_COMMIT_INDEX` | `CamelJGroupsRaftCommitIndex`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_CURRENT_TERM` | `JGROUPSRAFT_CURRENT_TERM` | `CamelJGroupsRaftCurrentTerm`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_IS_LEADER` | `JGROUPSRAFT_IS_LEADER` | `CamelJGroupsRaftIsLeader`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_LAST_APPLIED` | `JGROUPSRAFT_LAST_APPLIED` | `CamelJGroupsRaftLastApplied`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_LEADER_ADDRESS` | `JGROUPSRAFT_LEADER_ADDRESS` | `CamelJGroupsRaftLeaderAddress`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_RAFT_ID` | `JGROUPSRAFT_RAFT_ID` | `CamelJGroupsRaftRaftId`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_EVENT_TYPE` | `JGROUPSRAFT_EVENT_TYPE` | `CamelJGroupsRaftEventType`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_SET_OFFSET` | `JGROUPSRAFT_SET_OFFSET` | `CamelJGroupsRaftSetOffset`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_SET_LENGTH` | `JGROUPSRAFT_SET_LENGTH` | `CamelJGroupsRaftSetLength`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_SET_TIMEOUT` | `JGROUPSRAFT_SET_TIMEOUT` | `CamelJGroupsRaftSetTimeout`
| `JGroupsRaftConstants.HEADER_JGROUPSRAFT_SET_TIMEUNIT` | `JGROUPSRAFT_SET_TIMEUNIT` | `CamelJGroupsRaftSetTimeUnit`
|===

Routes that reference the constant symbolically (for example
`setHeader(JGroupsRaftConstants.HEADER_JGROUPSRAFT_SET_TIMEOUT, ...)`) continue
to work without changes. Routes that set the header by its literal string value
(for example `setHeader("JGROUPSRAFT_SET_TIMEOUT", ...)`) must be updated to
use the new value (`setHeader("CamelJGroupsRaftSetTimeout", ...)`).

== Upgrading from 4.18.0 to 4.18.1

=== camel-bom
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