davsclaus commented on code in PR #28030:
URL: https://github.com/apache/camel/pull/28030#discussion_r4318288921


##########
docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_24.adoc:
##########
@@ -743,6 +743,14 @@ now read as a local date-time without a zone (`getDate()` 
returns a `LocalDateTi
 definition of an earlier message, if there was one. A calendar that defines a 
`TZID` an earlier message has defined
 differently is now read with its own definition.
 
+=== camel-flatpack - marshal writes the first row of the list
+
+With the default `ignoreFirstRecord=true`, marshalling a `List<Map<String, 
Object>>` skipped the first map, so the
+first data row was missing from the output, for delimited and fixed-length 
files alike (the header line of a delimited
+file is written from the column names, not from the first map). Every map of 
the list is now written, and
+`ignoreFirstRecord` only applies to unmarshal. A route that set 
`ignoreFirstRecord=false` to work around this is not
+affected; a route that added a dummy first map now gets it in the output too.

Review Comment:
   Resolving: this wording is optional and does not block the merge. The 
current sentence already says the dummy map now appears in the output.
   
   _Claude Code on behalf of Claus Ibsen_



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