From c4ea0a2601fcc8927933c0c96ea5df785641719e Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 18:35:07 +0200
Subject: [PATCH 1/8] add arm64 for linux

---
 .github/workflows/ci.yml                      | 57 ++++++++++++++++++-
 bloscjni/Dockerfile.ubuntu20-arm64            | 14 +++++
 .../com/scalableminds/bloscjava/Blosc.java    |  5 ++
 3 files changed, 74 insertions(+), 2 deletions(-)
 create mode 100644 bloscjni/Dockerfile.ubuntu20-arm64

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7836ef9..2d9bac9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -110,7 +110,7 @@ jobs:
           docker run -i -v$(pwd):/app -w /app centos7-jdk8 bash <<EOF
           cd bloscjni
           gcc -I"\$JAVA_HOME/include" -I"\$JAVA_HOME/include/linux" \
-            -shared -lc -fPIC -o ../src/main/resources/libbloscjni.so -O3 \
+            -shared -lc -fPIC -o ../src/main/resources/libbloscjni-amd64.so -O3 \
             bloscjni.c ../c-blosc/build/blosc/libblosc.a
           EOF
 
@@ -125,8 +125,61 @@ jobs:
           name: bloscjni-${{ matrix.os }}
           path: src/main/resources
 
+  build_bloscjni_linux_arm64:
+    runs-on: ubuntu-24.04-arm
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '8'
+          cache: 'maven'
+
+      - name: Prepare resources folder
+        run: mkdir src/main/resources
+
+      - name: Build ubuntu20 arm64 docker
+        run: |
+          cd bloscjni
+          docker build -t ubuntu20-arm64-jdk8 -f Dockerfile.ubuntu20-arm64 .
+
+      - name: Build c-blosc (Linux arm64)
+        run: |
+          docker run -i -v$(pwd):/app -w /app/c-blosc ubuntu20-arm64-jdk8 bash << EOF
+          mkdir build
+          cd build
+          cmake .. \
+            -DDEACTIVATE_AVX2=ON \
+            -DDEACTIVATE_SSE2=ON \
+            -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+            -DCMAKE_BUILD_TYPE=Release
+          cmake --build . -j8 --config Release
+          EOF
+
+      - name: Build bloscjni (Linux arm64)
+        run: |
+          docker run -i -v$(pwd):/app -w /app ubuntu20-arm64-jdk8 bash <<EOF
+          cd bloscjni
+          gcc -I"\$JAVA_HOME/include" -I"\$JAVA_HOME/include/linux" \
+            -shared -lc -fPIC -o ../src/main/resources/libbloscjni-aarch64.so -O3 \
+            bloscjni.c ../c-blosc/build/blosc/libblosc.a
+          EOF
+
+      - name: Build blosc-java
+        run: mvn compile
+
+      - name: Test blosc-java
+        run: mvn test
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: bloscjni-linux-arm64
+          path: src/main/resources
+
   build_publish_jar:
-    needs: [ build_bloscjni ]
+    needs: [ build_bloscjni, build_bloscjni_linux_arm64 ]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
diff --git a/bloscjni/Dockerfile.ubuntu20-arm64 b/bloscjni/Dockerfile.ubuntu20-arm64
new file mode 100644
index 0000000..e6f973d
--- /dev/null
+++ b/bloscjni/Dockerfile.ubuntu20-arm64
@@ -0,0 +1,14 @@
+FROM arm64v8/ubuntu:20.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y \
+  openjdk-8-jdk gcc make curl && \
+  rm -rf /var/lib/apt/lists/*
+
+RUN cd /usr/local/src && \
+  curl -LO https://github.com/Kitware/CMake/releases/download/v3.22.2/cmake-3.22.2-linux-aarch64.tar.gz && \
+  tar -xf cmake-3.22.2-linux-aarch64.tar.gz && \
+  mv cmake-3.22.2-linux-aarch64 /usr/local/cmake
+
+ENV PATH="/usr/local/cmake/bin:$PATH"
+ENV JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64
diff --git a/src/main/java/com/scalableminds/bloscjava/Blosc.java b/src/main/java/com/scalableminds/bloscjava/Blosc.java
index fa4b8e6..b13117f 100644
--- a/src/main/java/com/scalableminds/bloscjava/Blosc.java
+++ b/src/main/java/com/scalableminds/bloscjava/Blosc.java
@@ -172,6 +172,11 @@ private static File loadLibraryFromJarToTemp() throws IOException {
 
       // attempt to look up the static library in the jar file
       String libraryFileName = filePrefix + extension;
+      // On Linux, select arch-specific library
+      if (extension.equals(".so")) {
+        String arch = System.getProperty("os.arch").toLowerCase();
+        libraryFileName = filePrefix + "-" + arch + extension;
+      }
       is = Blosc.class.getClassLoader().getResourceAsStream(libraryFileName);
 
       if (is == null) {

From dbccfb6933aec2486f77e2b2260e85660c1d4250 Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 18:38:47 +0200
Subject: [PATCH 2/8] ci

---
 .github/workflows/ci.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d9bac9..a4a4669 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -120,7 +120,7 @@ jobs:
       - name: Test blosc-java
         run: mvn test
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: bloscjni-${{ matrix.os }}
           path: src/main/resources
@@ -173,7 +173,7 @@ jobs:
       - name: Test blosc-java
         run: mvn test
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: bloscjni-linux-arm64
           path: src/main/resources
@@ -191,7 +191,7 @@ jobs:
           java-version: '8'
           cache: 'maven'
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           path: src/main/resources
 
@@ -204,7 +204,7 @@ jobs:
       - name: Assemble JAR
         run: mvn package
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: blosc-jar
           path: target/*.jar

From 7b6d05279ad399a7fe19dd8550d7d6126441a153 Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 18:48:21 +0200
Subject: [PATCH 3/8] ci

---
 .github/workflows/ci.yml | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a4a4669..a3f1021 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
   build_bloscjni:
     strategy:
       matrix:
-        os: [ ubuntu-latest, windows-latest, macos-12 ]
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
@@ -42,7 +42,7 @@ jobs:
             bloscjni.c ..\\c-blosc\\build\\blosc\\libblosc.a
 
       - name: Build c-blosc (Mac arm64)
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-latest' }}
         run: |
           cd c-blosc
           mkdir build-arm64
@@ -57,19 +57,20 @@ jobs:
           cmake --build . -j8 --config Release --target blosc_static
 
       - name: Build c-blosc (Mac x86_64)
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-latest' }}
         run: |
           cd c-blosc
           mkdir build-x86_64
           cd build-x86_64
           cmake .. \
+            -DCMAKE_OSX_ARCHITECTURES=x86_64 \
             -DCMAKE_OSX_DEPLOYMENT_TARGET=10.9 \
             -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
             -DCMAKE_BUILD_TYPE=Release
           cmake --build . -j8 --config Release --target blosc_static
 
       - name: Build bloscjni (Mac universal)
-        if: ${{ matrix.os == 'macos-12' }}
+        if: ${{ matrix.os == 'macos-latest' }}
         run: |
           cd bloscjni
           cc \

From 7bc946ba61e07aa3df238d00fb2494a2a295aa5c Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 18:49:48 +0200
Subject: [PATCH 4/8] c-blosc v1.21.6

---
 c-blosc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/c-blosc b/c-blosc
index 2c2f9bd..616f4b7 160000
--- a/c-blosc
+++ b/c-blosc
@@ -1 +1 @@
-Subproject commit 2c2f9bd936b1340ad92a6da6c2a52adf4254c241
+Subproject commit 616f4b7343a8479f7e71dd3d7025bd92c9a6bbd0

From ccc83ccd79997028fe6b0c6b2bf3ba2e5785ae6a Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 18:55:01 +0200
Subject: [PATCH 5/8] cmake<4

---
 .github/workflows/ci.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a3f1021..8bd721c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,10 @@ jobs:
             -shared -o ..\\src\\main\\resources\\libbloscjni.dll \
             bloscjni.c ..\\c-blosc\\build\\blosc\\libblosc.a
 
+      - name: Install CMake 3.x (Mac)
+        if: ${{ matrix.os == 'macos-latest' }}
+        run: pip3 install 'cmake<4'
+
       - name: Build c-blosc (Mac arm64)
         if: ${{ matrix.os == 'macos-latest' }}
         run: |

From 127aab19509f45f2ec6fc3fe50f6e772ef2d2589 Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 19:10:39 +0200
Subject: [PATCH 6/8] ci

---
 .github/workflows/ci.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bd721c..13b52ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,9 @@ jobs:
 
       - name: Install CMake 3.x (Mac)
         if: ${{ matrix.os == 'macos-latest' }}
-        run: pip3 install 'cmake<4'
+        uses: lukka/get-cmake@latest
+        with:
+          cmakeVersion: "~3"
 
       - name: Build c-blosc (Mac arm64)
         if: ${{ matrix.os == 'macos-latest' }}

From 38870371dc20b047e5c7b991405c5dc358880a44 Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 19:23:54 +0200
Subject: [PATCH 7/8] ci

---
 .github/workflows/ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 13b52ac..e69c1ba 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -218,8 +218,8 @@ jobs:
 
       - name: Publish to Maven Central
         env:
-          JRELEASER_NEXUS2_USERNAME: ${{ secrets.JRELEASER_NEXUS2_USERNAME }}
-          JRELEASER_NEXUS2_PASSWORD: ${{ secrets.JRELEASER_NEXUS2_PASSWORD }}
+          JRELEASER_MAVENCENTRAL_SONATYPE_USERNAME: ${{ secrets.JRELEASER_MAVENCENTRAL_USERNAME }}
+          JRELEASER_MAVENCENTRAL_SONATYPE_TOKEN: ${{ secrets.JRELEASER_MAVENCENTRAL_TOKEN }}
           JRELEASER_GPG_PASSPHRASE: ${{ secrets.JRELEASER_GPG_PASSPHRASE }}
           JRELEASER_GPG_SECRET_KEY: ${{ secrets.JRELEASER_GPG_SECRET_KEY }}
           JRELEASER_GPG_PUBLIC_KEY: ${{ secrets.JRELEASER_GPG_PUBLIC_KEY }}

From 9b837d470f2bb443eb0dda3846dbdfa48b02239f Mon Sep 17 00:00:00 2001
From: Norman Rzepka <code@normanrz.com>
Date: Wed, 29 Apr 2026 19:41:16 +0200
Subject: [PATCH 8/8] pom

---
 pom.xml | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/pom.xml b/pom.xml
index e95f521..2aa4172 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>com.scalableminds</groupId>
   <artifactId>blosc-java</artifactId>
-  <version>0.2-1.21.4</version>
+  <version>0.3-1.21.6</version>
   <inceptionYear>2023</inceptionYear>
 
   <name>blosc-java</name>
@@ -76,7 +76,7 @@
           <plugin>
             <groupId>org.jreleaser</groupId>
             <artifactId>jreleaser-maven-plugin</artifactId>
-            <version>1.7.0</version>
+            <version>1.15.0</version>
             <configuration>
               <jreleaser>
                 <signing>
@@ -85,17 +85,13 @@
                 </signing>
                 <deploy>
                   <maven>
-                    <nexus2>
-                      <maven-central>
+                    <mavenCentral>
+                      <sonatype>
                         <active>ALWAYS</active>
-                        <url>https://oss.sonatype.org/service/local</url>
-                        <snapshotUrl>https://oss.sonatype.org/content/repositories/snapshots/
-                        </snapshotUrl>
-                        <closeRepository>false</closeRepository>
-                        <releaseRepository>false</releaseRepository>
+                        <url>https://central.sonatype.com/api/v1/publisher</url>
                         <stagingRepositories>target/staging-deploy</stagingRepositories>
-                      </maven-central>
-                    </nexus2>
+                      </sonatype>
+                    </mavenCentral>
                   </maven>
                 </deploy>
               </jreleaser>