diff --git a/.gitattributes b/.gitattributes
index 7bf4190..be4674f 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,5 @@
 lib/.gitkeep export-ignore
-bin/ export-ignore
+node_modules/ export-ignore
+test/ export-ignore
+vendor/ export-ignore
+package-lock.json export-ignore
diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index 8d9edbc..2360063 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -14,11 +14,7 @@ jobs:
     runs-on: [ubuntu-latest]
 
     steps:
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.SAMLTRACER_BUILD_TOKEN }}
           ref: ${{ github.head_ref || github.ref_name }}
@@ -29,17 +25,44 @@ jobs:
         # Without fetching, we might miss new tags due to caching in Github Actions
         run: git fetch --all
 
-      - name: Run build-script
-        run: bin/build.sh
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 24
+
+      - name: Install & build assets
+        run: |
+          # Make sure the lock-file is up to date before we run clean-install
+          npm install --package-lock-only
+          npm clean-install
+          npm audit fix
+
+      - name: Build custom (minimum) release of highlight.js
+        run: |
+          cd node_modules/highlight.js
+          npm install --package-lock-only
+          npm clean-install
+          npm run build
+          node tools/build.js xml properties http
+
+      - name: Copy third-party dependencies to lib/ directory
+        run: |
+          cp node_modules/highlight.js/build/highlight.min.js lib/highlight.min.js
+          cp node_modules/pako/dist/pako_inflate.min.js lib/pako_inflate.min.js
+
+      - name: Clean release
+        run: |
+          grep export-ignore .gitattributes | cut -d ' ' -f 1 | while IFS= read -r line
+          do
+            rm -rf "$line"
+          done
+          rm -rf .git
 
-      # Store the version, stripping any v-prefix
-      - name: Write release version
+      - name: Build zip-file
         run: |
-          TAG="${{ github.ref_name }}"
-          echo "VERSION=${TAG#v}" >> "$GITHUB_ENV"
+          zip -1 -r /tmp/samltracer.zip *
 
       - name: Save release
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: release
           path: "/tmp/samltracer.zip"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6636960..62bd6e3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,11 +13,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 26
 
       - name: Install dependencies
         run: npm ci
diff --git a/.gitignore b/.gitignore
index c366fbc..bc01dcd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 lib/*.js
 node_modules/
+vendor/
+composer.lock
diff --git a/LICENSE b/LICENSE
index 3eca752..a184936 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2011-2014, UNINETT AS
+Copyright (c) 2011-2026, SimpleSAMLphp
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/bin/build.sh b/bin/build.sh
deleted file mode 100755
index 90fd1be..0000000
--- a/bin/build.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/bin/bash
-
-set -e
-
-CWD="$(pwd)"
-
-HLJS_VERSION=11.11.1
-PAKO_VERSION=2.1.0
-
-if [ -n "$1" ]; then
-    RELEASE="tags/$1"
-    TARGET="/tmp/$1.zip"
-else
-    RELEASE="HEAD"
-    TARGET="/tmp/samltracer.zip"
-fi
-
-if ! git rev-parse --verify "$RELEASE" >/dev/null 2>&1; then
-    echo "Invalid revision: $RELEASE" >&2
-    exit 1
-fi
-
-# Build Highlight.js
-HLJS=$(mktemp -d)
-cd "$HLJS"
-git clone --depth 1 -b "$HLJS_VERSION" https://github.com/highlightjs/highlight.js.git
-cd highlight.js
-
-npm install --package-lock-only
-npm clean-install
-npm run build
-node tools/build.js xml properties http
-
-# Build Pako
-PAKO=$(mktemp -d)
-cd "$PAKO"
-git clone --depth 1 -b "$PAKO_VERSION" https://github.com/nodeca/pako.git
-cd pako
-
-npm install --package-lock-only
-npm clean-install
-npm run build
-
-DEST=$(mktemp -d)
-cd $CWD
-cp -R $CWD/. $DEST
-cd $DEST
-
-# Copy dependencies
-cp "$HLJS/highlight.js/build/highlight.min.js" "$DEST/lib/"
-cp "$PAKO/pako/dist/pako_inflate.min.js" "$DEST/lib/"
-
-# Clean release
-grep export-ignore .gitattributes | cut -d ' ' -f 1 | while IFS= read -r line
-do
-  rm -rf "$line"
-done
-
-git archive --format tar "$RELEASE" | (cd "$DEST"; tar xv)
-
-cd "$DEST"
-
-zip -1 -r "$TARGET" *
-
-cd /
-rm -rf "$DEST"
-rm -rf "$HLJS"
-rm -rf "$PAKO"
diff --git a/package-lock.json b/package-lock.json
index 98d699b..6652e0f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,18 +7,22 @@
     "": {
       "name": "saml-tracer",
       "version": "1.9.2",
+      "dependencies": {
+        "highlight.js": "github:highlightjs/highlight.js",
+        "pako": "~2.2"
+      },
       "devDependencies": {
         "jest": "^29.0.0"
       }
     },
     "node_modules/@babel/code-frame": {
-      "version": "7.29.0",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.0.tgz",
-      "integrity": "sha512-9NhCeYjq9+3uxgdtp20LSiJXJvN0FeCtNGpJxuMFZ1Kv3cWUNb6DOhJwUvcVCzKGR66cw4njwM6hrJLqgOwbcw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.7.tgz",
+      "integrity": "sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/helper-validator-identifier": "^7.28.5",
+        "@babel/helper-validator-identifier": "^7.29.7",
         "js-tokens": "^4.0.0",
         "picocolors": "^1.1.1"
       },
@@ -27,9 +31,9 @@
       }
     },
     "node_modules/@babel/compat-data": {
-      "version": "7.29.3",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.29.3.tgz",
-      "integrity": "sha512-LIVqM46zQWZhj17qA8wb4nW/ixr2y1Nw+r1etiAWgRM6U1IqP+LNhL1yg440jYZR72jCWcWbLWzIosH+uP1fqg==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.29.7.tgz",
+      "integrity": "sha512-locTkQyKvwIEgBzVrn8693ebc97F2U8ZHjbXwDXJ5Fn2TCpNwTlKcaKLkdHop5c/icOFE7qt7Q9JC5hnKNa6Gg==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -37,21 +41,21 @@
       }
     },
     "node_modules/@babel/core": {
-      "version": "7.29.0",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.29.0.tgz",
-      "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.29.7.tgz",
+      "integrity": "sha512-RgHBCvtjbOK2gXSNBNIkNoEc9qoVEtau3hj8gEqKQuL3HZAibKarWFEI3Lfm6EYKkLalOh8eSrj9b+ch9H/VBA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/code-frame": "^7.29.0",
-        "@babel/generator": "^7.29.0",
-        "@babel/helper-compilation-targets": "^7.28.6",
-        "@babel/helper-module-transforms": "^7.28.6",
-        "@babel/helpers": "^7.28.6",
-        "@babel/parser": "^7.29.0",
-        "@babel/template": "^7.28.6",
-        "@babel/traverse": "^7.29.0",
-        "@babel/types": "^7.29.0",
+        "@babel/code-frame": "^7.29.7",
+        "@babel/generator": "^7.29.7",
+        "@babel/helper-compilation-targets": "^7.29.7",
+        "@babel/helper-module-transforms": "^7.29.7",
+        "@babel/helpers": "^7.29.7",
+        "@babel/parser": "^7.29.7",
+        "@babel/template": "^7.29.7",
+        "@babel/traverse": "^7.29.7",
+        "@babel/types": "^7.29.7",
         "@jridgewell/remapping": "^2.3.5",
         "convert-source-map": "^2.0.0",
         "debug": "^4.1.0",
@@ -68,14 +72,14 @@
       }
     },
     "node_modules/@babel/generator": {
-      "version": "7.29.1",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.29.1.tgz",
-      "integrity": "sha512-qsaF+9Qcm2Qv8SRIMMscAvG4O3lJ0F1GuMo5HR/Bp02LopNgnZBC/EkbevHFeGs4ls/oPz9v+Bsmzbkbe+0dUw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.29.7.tgz",
+      "integrity": "sha512-DkXD5OJQaAQIdZ1bt3UZdEnHAn9Imd3IVBdX03UFe+ony9Ojw5pzr9YVKGDY1jt+Gcn/FnGkNf8r+Vj5NOJWtQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/parser": "^7.29.0",
-        "@babel/types": "^7.29.0",
+        "@babel/parser": "^7.29.7",
+        "@babel/types": "^7.29.7",
         "@jridgewell/gen-mapping": "^0.3.12",
         "@jridgewell/trace-mapping": "^0.3.28",
         "jsesc": "^3.0.2"
@@ -85,14 +89,14 @@
       }
     },
     "node_modules/@babel/helper-compilation-targets": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.28.6.tgz",
-      "integrity": "sha512-JYtls3hqi15fcx5GaSNL7SCTJ2MNmjrkHXg4FSpOA/grxK8KwyZ5bubHsCq8FXCkua6xhuaaBit+3b7+VZRfcA==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.29.7.tgz",
+      "integrity": "sha512-wem6WaBj4NaVYVdNhLPPVacES6ZJ+KBBfSkTMD3YZxbP3rm3Di85tJU5ljaUNhaOynt+Aj0xruhYuzQBt8n71g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/compat-data": "^7.28.6",
-        "@babel/helper-validator-option": "^7.27.1",
+        "@babel/compat-data": "^7.29.7",
+        "@babel/helper-validator-option": "^7.29.7",
         "browserslist": "^4.24.0",
         "lru-cache": "^5.1.1",
         "semver": "^6.3.1"
@@ -102,9 +106,9 @@
       }
     },
     "node_modules/@babel/helper-globals": {
-      "version": "7.28.0",
-      "resolved": "https://registry.npmjs.org/@babel/helper-globals/-/helper-globals-7.28.0.tgz",
-      "integrity": "sha512-+W6cISkXFa1jXsDEdYA8HeevQT/FULhxzR99pxphltZcVaugps53THCeiWA8SguxxpSp3gKPiuYfSWopkLQ4hw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-globals/-/helper-globals-7.29.7.tgz",
+      "integrity": "sha512-3nQVUAtvkKH9zahfWgw96Jc/uFOmjACE1kQz82E2lqWmHBgjzbNlsC22nuQTfahmWeQtTq5nQ/4Nnd2A1wj4zA==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -112,29 +116,29 @@
       }
     },
     "node_modules/@babel/helper-module-imports": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.28.6.tgz",
-      "integrity": "sha512-l5XkZK7r7wa9LucGw9LwZyyCUscb4x37JWTPz7swwFE/0FMQAGpiWUZn8u9DzkSBWEcK25jmvubfpw2dnAMdbw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.29.7.tgz",
+      "integrity": "sha512-ejHwrQQYcm9xnTivShn2IDOlIzInN34AXskvq9QicvCtEzq1Vzclu/tKF8Jq1Cg8JG2GL6/EmjgsCT7lXepE3g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/traverse": "^7.28.6",
-        "@babel/types": "^7.28.6"
+        "@babel/traverse": "^7.29.7",
+        "@babel/types": "^7.29.7"
       },
       "engines": {
         "node": ">=6.9.0"
       }
     },
     "node_modules/@babel/helper-module-transforms": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.28.6.tgz",
-      "integrity": "sha512-67oXFAYr2cDLDVGLXTEABjdBJZ6drElUSI7WKp70NrpyISso3plG9SAGEF6y7zbha/wOzUByWWTJvEDVNIUGcA==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.29.7.tgz",
+      "integrity": "sha512-UPUVSyXbOh627KiCIGQSgwWzGeBKLkaJ9PJEdrngIwMSzxLR4jS4+f1f1jb7VzBbg8nFLaYotvVPFCTqdrmTAg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/helper-module-imports": "^7.28.6",
-        "@babel/helper-validator-identifier": "^7.28.5",
-        "@babel/traverse": "^7.28.6"
+        "@babel/helper-module-imports": "^7.29.7",
+        "@babel/helper-validator-identifier": "^7.29.7",
+        "@babel/traverse": "^7.29.7"
       },
       "engines": {
         "node": ">=6.9.0"
@@ -144,9 +148,9 @@
       }
     },
     "node_modules/@babel/helper-plugin-utils": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.28.6.tgz",
-      "integrity": "sha512-S9gzZ/bz83GRysI7gAD4wPT/AI3uCnY+9xn+Mx/KPs2JwHJIz1W8PZkg2cqyt3RNOBM8ejcXhV6y8Og7ly/Dug==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.29.7.tgz",
+      "integrity": "sha512-G7sHYigPY17oO5SYWnfD/0MTBwVR781S/JI643e/JhUYgVgWE/61SoW3NH9KWUKyKq5LVh3npif99Wkt6j86Jw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -154,9 +158,9 @@
       }
     },
     "node_modules/@babel/helper-string-parser": {
-      "version": "7.27.1",
-      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.27.1.tgz",
-      "integrity": "sha512-qMlSxKbpRlAridDExk92nSobyDdpPijUq2DW6oDnUqd0iOGxmQjyqhMIihI9+zv4LPyZdRje2cavWPbCbWm3eA==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.29.7.tgz",
+      "integrity": "sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -164,9 +168,9 @@
       }
     },
     "node_modules/@babel/helper-validator-identifier": {
-      "version": "7.28.5",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.28.5.tgz",
-      "integrity": "sha512-qSs4ifwzKJSV39ucNjsvc6WVHs6b7S03sOh2OcHF9UHfVPqWWALUsNUVzhSBiItjRZoLHx7nIarVjqKVusUZ1Q==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.29.7.tgz",
+      "integrity": "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -174,9 +178,9 @@
       }
     },
     "node_modules/@babel/helper-validator-option": {
-      "version": "7.27.1",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.27.1.tgz",
-      "integrity": "sha512-YvjJow9FxbhFFKDSuFnVCe2WxXk1zWc22fFePVNEaWJEu8IrZVlda6N0uHwzZrUM1il7NC9Mlp4MaJYbYd9JSg==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.29.7.tgz",
+      "integrity": "sha512-N9ZErrD+yW5geCDtBqnOoxmR8+tNKiGuxKlDpuJxfsqpa2dFcexaziGAE/qoHLiDDreVNMupxGmSoNlyvsA3gw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -184,27 +188,27 @@
       }
     },
     "node_modules/@babel/helpers": {
-      "version": "7.29.2",
-      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.29.2.tgz",
-      "integrity": "sha512-HoGuUs4sCZNezVEKdVcwqmZN8GoHirLUcLaYVNBK2J0DadGtdcqgr3BCbvH8+XUo4NGjNl3VOtSjEKNzqfFgKw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.29.7.tgz",
+      "integrity": "sha512-1k2lAGRMfHTcwuNYcCNUmaUffmQv8KWMfh2iJUUeRlwlwH4FdNG7mfPI10NPfLHJFThE4Tyr4mv7kTNZOiPuBg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/template": "^7.28.6",
-        "@babel/types": "^7.29.0"
+        "@babel/template": "^7.29.7",
+        "@babel/types": "^7.29.7"
       },
       "engines": {
         "node": ">=6.9.0"
       }
     },
     "node_modules/@babel/parser": {
-      "version": "7.29.3",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.29.3.tgz",
-      "integrity": "sha512-b3ctpQwp+PROvU/cttc4OYl4MzfJUWy6FZg+PMXfzmt/+39iHVF0sDfqay8TQM3JA2EUOyKcFZt75jWriQijsA==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.29.7.tgz",
+      "integrity": "sha512-hnORnjP/1P/zFEndoeX+n+t1RwWRJiJpM/jO7FW32Kn9r5+sJB2JWOdYo4L6k78j15eCwY3Gm/7364B1EMwtNg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/types": "^7.29.0"
+        "@babel/types": "^7.29.7"
       },
       "bin": {
         "parser": "bin/babel-parser.js"
@@ -269,13 +273,13 @@
       }
     },
     "node_modules/@babel/plugin-syntax-import-attributes": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-import-attributes/-/plugin-syntax-import-attributes-7.28.6.tgz",
-      "integrity": "sha512-jiLC0ma9XkQT3TKJ9uYvlakm66Pamywo+qwL+oL8HJOvc6TWdZXVfhqJr8CCzbSGUAbDOzlGHJC1U+vRfLQDvw==",
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-import-attributes/-/plugin-syntax-import-attributes-7.29.7.tgz",
+      "integrity": "sha512-zGYcYfq/WmZ4V+kBIXQon9dSSc8ircGZqw9ZaNhhGj9nZkeBu1jHLBDQqYYi5WA9uawvA2sIMbry2nCFhf5Djg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/helper-plugin-utils": "^7.28.6"
+        "@babel/helper-plugin-utils": "^7.29.7"
       },
       "engines": {
         "node": ">=6.9.0"
@@ -311,13 +315,13 @@
       }
     },
     "node_modules/@babel/plugin-syntax-jsx": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-jsx/-/plugin-syntax-jsx-7.28.6.tgz",
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@@ -2994,6 +3009,22 @@
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diff --git a/package.json b/package.json
index ab7ce2a..4be59b6 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,10 @@
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