gzurowski commented on code in PR #1092:
URL: https://github.com/apache/camel-website/pull/1092#discussion_r1390783977
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content/blog/2023/11/camel42-whatsnew/index.md:
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+---
+title: "Apache Camel 4.2 What's New"
+date: 2023-11-15
+authors: [davsclaus]
+categories: ["Releases"]
+preview: Details of what we have done in the Camel 4.2 release.
+---
+
+Apache Camel 4.2 (non LTS) has just been
[released](/blog/2023/11/RELEASE-4.2.0/).
+
+This release introduces a set of new features and noticeable improvements that
we will cover in this blog post.
+
+## Java 21
+
+This is the first release that officially supports running on Java 21.
+
+## Camel Core
+
+TODO: performance and type converter stuff
+
+The Java DSL now supports String text-blocks when defining Camel URIs, as
shown:
+
+```
+from("""debezium-postgres:customerEvents
+ ?databasePassword={{myPassword}}
+ &databaseDbname=myDB
+ &databaseHostname=myHost
+ &pollIntervalMs=2000
+ &queryFetchSize=100""")
+ .to("kafka:cheese");
+```
+
+You can now use a bean method call with property placeholders.
+
+For example a bean can be used to return the name for a topic to use in a
Kafka route:
+
+```
+from("kafka:{{bean:myBean.computeTopic}}")
+ .to("bean:cheese")
+```
+
+In this example Camel will invoke the method `computeTopic` on the bean with
id `myBean` when the route is created.
+
+## Camel Main
+
+You can now configure the following in `application.properties`:
+
+- Global SSL options using `camel.ssl.`
+- Camel route debugger options using `camel.debug.`
+- Camel Open Telemetry options using `camel.opentelemetry.`
+
+## DSL
+
+The kebab-case syntax in YAML DSL has been deprecated and Camel will now
report a WARN if detected.
+You should use Camel Case of course ;) For example `set-header` should be
`setHeader`.
+
+## Camel JBang (Camel CLI)
+
+We have continued investing in Camel JBang, and this time we introduce the new
DSL `debug` command, that is a Camel
+route debugger from the CLI. This makes it very easy and quick to run and
debug your Camel routes and better
+see and understand what happens.
+
+
+
+We plan to make a separate blog and video showing the debug command in action.
+
+The Camel JBang now supports Java Agents when exporting to `camel-main`
runtime. This makes it easy for example to
+include Open Telemetry Java Agent JAR in the export, so you can easily build,
package and run with the agent readily available.
+
+We also made Camel JBang work better on Windows. However, we are interested in
feedback from Windows users.
+
+The `run clipboard.yaml` command (run from clipboard) now supports `--dev`
mode for reload on changes (i.e. you can copy to clipboard your updates).
+
+## Spring and Spring Boot
+
+Upgraded to latest 3.1.5 release.
+
+Added support for Spring beans using `@Primary` for auto-wiring. This allows
Camel to use the primary bean when there are multiple
+bean instance for the same Java type (such as database connection's).
+
+## Rest DSL
+
+You can now use wildcards (`*`) in Rest DSL to handle a wider range of
requests from the same API service:
+
+```
+rest("myapi")
+ .get("user/*")
+ .to("direct:userStuff")
+```
+
+This will then let Camel service all HTTP GET requests that starts with
`myapi/user/` such as `myapi/user/123`, `myapi/user/123/account/zip`, etc.
+
+## Miscellaneous
+
+The `camel-azure` can now send binary files to Azure Service Bus,
+
+The `camel-micrometer` can be configured in backwards (Camel 3.20 or older)
naming mode. This allows to keep using old naming style,
+that monitoring systems have been pre-configured to use.
+
+The `camel-platform-http-vertx` now supports streaming big HTTP payloads
directly if `useStreaming=true` has been set.
+
+The `camel-dynamic-router` component has been refactored to use Camel's
`MulticastProcessor` as its engine instead of custom processor.
+
+The `camel-kafka` consumer will now fail on startup if you have invalid broker
port number, that previously would make Kafka
Review Comment:
```suggestion
The `camel-kafka` consumer will now fail on startup if you have an invalid
broker port number, that previously would make Kafka
```
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