diff --git a/_data/authors.yaml b/_data/authors.yaml index a6ded47ab1..2cdf0b8136 100644 --- a/_data/authors.yaml +++ b/_data/authors.yaml @@ -316,6 +316,12 @@ vsevel: mmusgrov: name: "Michael Musgrove" email: "mmusgrov@redhat.com" +sgehwolf: + name: "Severin Gehwolf" + email: "sgehwolf@ibm.com" + emailhash: "e739e2d699ec96cd985bae3b5271b6e5" + job_title: "Engineer (Software)" + bio: "Software Engineer at IBM working on OpenJDK and Mandrel." galderz: name: "Galder Zamarreño" email: "galder@redhat.com" diff --git a/_posts/2025-10-02-mandrel-25-released.adoc b/_posts/2025-10-02-mandrel-25-released.adoc new file mode 100644 index 0000000000..4a8fa0a964 --- /dev/null +++ b/_posts/2025-10-02-mandrel-25-released.adoc @@ -0,0 +1,98 @@ +--- +layout: post +title: 'Mandrel 25 is Here!' +date: 2025-10-02 +tags: release, mandrel, native, graalvm +synopsis: 'Mandrel 25, based on GraalVM 25, has been released.' +author: sgehwolf +--- + +We are thrilled to announce the official release of Mandrel 25! The beginning +of the next LTS version of the Quarkus native builder. + +Mandrel 25 is a downstream distribution of the +https://www.graalvm.org/release-notes/JDK_25[GraalVM 25] Community Edition. +Mandrel's main goal is to provide a native-image release specifically tailored +to support https://quarkus.io[Quarkus]. The aim is to align the native-image +capabilities from GraalVM with OpenJDK and Red Hat Enterprise Linux libraries +to improve maintainability for native Quarkus applications. As such, Mandrel 25 +is the same as GraalVM 25 native-image with some small differences. It's built +from the same code-base! + +[[what-is-new-25]] +== What's New in GraalVM 25? + +While there are too many new features added in GraalVM 25 to name them all it's +worth highlighting a few. GraalVM 25 includes enhanced support for Foreign +Function and Memory API in native-image. It enables FFM API support for MacOSX +Aarch64 and Linux Aarch64 (in addition to Linux x86_64). GraalVM 25 also +enhances metadata support in native-image. It now throws subclasses of +LinkageError when missing metadata is being detected at native image runtime. +This way it enables users to handle missing metadata registrations in a more +efficient way. + +[[based-on-openjdk-25]] +=== Mandrel 25 is Based on OpenJDK 25 + +Mandrel 25 is based on the new vanilla Eclipse Temurin 25 LTS release. Temurin +is an OpenJDK distribution produced at Eclipse. Based on the next LTS release +of OpenJDK, Mandrel 25 will be the next LTS version supporting Quarkus' native +compilation capabilities for the Quarkus releases to come. + +[[new-monitoring-features]] +=== New Monitoring Features + +GraalVM 25 also introduces several new features in the monitoring area of +native-image that have been contributed by Red Hat/IBM. Some highlights in JDK +Flight Recorder support (https://www.graalvm.org/jdk25/reference-manual/native-image/debugging-and-diagnostics/JFR/[JFR]), and https://www.graalvm.org/jdk25/reference-manual/native-image/debugging-and-diagnostics/NMT/[native memory tracking] (NMT) are: + +* **JCMD support:** GraalVM 25 adds support for the https://www.graalvm.org/jdk25/reference-manual/native-image/debugging-and-diagnostics/jcmd/[Java Diagnostic Command] + (JCMD) to native-image. This is useful to asynchronously request specific +actions on the running native image. For example a thread dump or a JFR +recording can be requested after the application has been started. +* **Added support for more JFR events:** Additional JFR events have been added, + specifically tracking native memory when monitoring option NMT is enabled as +well. Object allocation sampling with the jdk.ObjectAllocationSample event is +now also supported. For a list of all supported JFR events see the https://www.graalvm.org/jdk25/reference-manual/native-image/debugging-and-diagnostics/JFR/#built-in-events[upstream +documentation]. +* **Native Memory Tracking:** A new monitoring option for https://www.graalvm.org/jdk25/reference-manual/native-image/debugging-and-diagnostics/NMT/[tracking native + memory], NMT, has been added to native-image. This is useful to diagnose +memory leaks. + +[[getting-started-25]] +== Get Started with Mandrel 25 Today! + +Ready to experience the power of Mandrel 25? + +* **Download Mandrel 25:** You can download the latest version from the https://github.com/graalvm/mandrel/releases/tag/mandrel-25.0.0.1-Final[Mandrel + release page] on Github or install it using https://sdkman.io/[sdkman] by running: +[source,bash] +---- +sdk install java 25.0.0.1.r25-mandrel +---- +* **Builder Image with Quarkus:** Alternatively start using the Mandrel 25 + builder image for your quarkus application by specifying +`-Dquarkus.native.builder-image=quay.io/quarkus/ubi9-quarkus-mandrel-builder-image:jdk-25` +to your maven build. + +[[quarkus-compatibility-mandrel-25]] +== Quarkus Compatibility + +It's recommended to use at least Quarkus release 3.27.0 when using the Mandrel 25 +native builder. For older versions of Quarkus use the Mandrel 23.1 native +builder. + +[[graalvm-community-gratitude]] +== Shout Out to GraalVM Community + +We are very grateful for the immense support from the upstream GraalVM +community, especially the Oracle GraalVM team for stewarding and sponsoring the +development of GraalVM as well as for accepting Mandrel under the GraalVM +organization. Onward to more collaboration with the community as the next +version of GraalVM unfolds! + +We are incredibly excited about Mandrel 25 and will be making it the default +native image generator in an upcoming Quarkus release. In the meantime, do let +us know your experience of using Mandrel 25 with Quarkus! + +You can share your feedback with us in Quarkus' https://quarkusio.zulipchat.com/[Zulip chat workspace] or on https://github.com/quarkusio/quarkus/[GitHub].