[camel-website] 01/02: Blog whats new in Camel 3.7

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commit 2c0d527c9ba091eb529303c14873e4e3b84c7ca2
Author: Claus Ibsen <cl...@gmail.com>
AuthorDate: Tue Dec 15 10:43:24 2020 +0100

    Blog whats new in Camel 3.7
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+---
+title: "Apache Camel 3.7 What's New"
+date: 2020-12-17
+authors: [davsclaus]
+categories: ["Releases"]
+preview: Details of what we have done in the Camel 3.7 release.
+---
+
+Apache Camel 3.7 LTS has just been released.
+
+This is a LTS release which means we will provide patch releases for one year.
+The next planned LTS release is 3.10 scheduled towards summer 2021.
+
+
+## So what's in this release?
+
+This release introduces a set of new features and noticeable improvements that we will cover in this blog post.
+
+
+### Spring Boot
+
+We have upgraded to the latest release at this time which is Spring Boot 2.4.0.
+
+TODO: csimple (and jOOR)
+TODO: salesforce component fixes
+TODO: vertx kafka component
+TODO: optimize more core (direct and event notifier, avoid regexp, faster code)
+TODO: optimize simple (singleton, eager load resource, concat expressions)
+TODO: untangle reifier, model, processor
+TODO: lightweight mode
+TODO: optimize core - base converters in 2 classes, reduce memory overhead
+TODO: optimize routing engine - reduce object allocations
+TODO: reflection free
+TODO: 2 blog posts from davsclaus
+TODO: #autowired by type on component
+
+
+
+### Language precompilation
+
+As mentioned in the optimization section we moved initialization of languages to an earlier phase.
+Camel now pre compile languages when its applicable, for example JSonPath, and XPath language.
+
+And speaking of pre-compiled languages then Camel 3.7 introduces the [jOOR language](/components/latest/languages/joor-language.html)
+to use runtime compile Java in the Camel DSL. A compiled simple language is also on the roadmap.
+
+
+### Optimized components startup
+
+The camel core has been optimized in Camel 3 to be small, slim, and fast on startup. This benefits Camel Quarkus which
+can do built time optimizations that take advantage of the optimized camel core.
+
+We have continued this effort in the Camel components where whenever possible initialization is moved ahead
+to an earlier phase during startup, that allows enhanced built time optimizations. As there are a lot of Camel
+components then this work will progress over the next couple of Camel releases.
+
+
+### New components
+
+This release has a number of new components, data formats and languages:
+
+- AtlasMap: Transforms the message using an AtlasMap transformation
+- Kubernetes Custom Resources: Perform operations on Kubernetes Custom Resources and get notified on Deployment changes
+- Vert.X Kafka: Sent and receive messages to/from an Apache Kafka broker using vert.x Kafka client
+- JSON JSON-B: Marshal POJOs to JSON and back using JSON-B
+- CSimple: Evaluate a compile simple expression language
+- DataSonnet: To use DataSonnet scripts in Camel expressions or predicates
+- jOOR: Evaluate a jOOR (Java compiled once at runtime) expression language
+
+
+## Upgrading
+
+Make sure to read the [upgrade guide](/manual/latest/camel-3x-upgrade-guide-3_7.html) if you
+are upgrading to this release from a previous Camel version.
+
+
+## More details
+
+The previous LTS release was Camel 3.4. We have blog posts for what's new in
+[Camel 3.5](https://camel.apache.org/blog/2020/10/Camel36-Whatsnew/) and
+[Camel 3.6](https://camel.apache.org/blog/2020/09/Camel35-Whatsnew/) you may want to read
+to cover all news between the two LTS releases.
+
+
+## Release Notes
+
+You can find more information about this release in the [release notes](/releases/release-3.7.0/),
+with a list of JIRA tickets resolved in the release.