Header value doesn't update dynamically.

[jaanreinok]

The header value doesn't update. Layout value gets updated. This would be useful in case of supplying metadata via header. The http target has BatchAsJsonArray="true" wrapped in BufferingWrapper. custom layout render. LayoutRenderer.Register("unixutcms", (logEvent) => DateTimeOffset.UtcNow.ToUnixTimeMilliseconds());

<header name="ClientUtcNowMs" value="${unixutcms}"/> <layout type="JsonLayout" > <attribute name="ts" layout="${unixutcms}" /> ...

[DarekDan]

Relentless ... Layout renderers everywhere, huh? I will see what can be done, but no promises.