diff --git a/.github/workflows/precompile-gem.yml b/.github/workflows/precompile-gem.yml
index cac8f7e..5f60699 100644
--- a/.github/workflows/precompile-gem.yml
+++ b/.github/workflows/precompile-gem.yml
@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4.0-rc1"
           bundler-cache: true
       - run: bundle exec rake gem:${{ inputs.platform }}
       - uses: actions/upload-artifact@v4
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b96934a..89edfb1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -23,7 +23,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4.0-rc1"
           bundler-cache: true
       - run: bundle exec rake gem
       - uses: actions/upload-artifact@v4
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4.0-rc1"
           bundler-cache: true
       - run: bundle exec rake java:gem
       - uses: actions/upload-artifact@v4
@@ -45,25 +45,45 @@ jobs:
           name: jruby-gem
           path: pkg/*.gem
 
-  precompile-aarch64-linux:
+  precompile-aarch64-linux-gnu:
     uses: ./.github/workflows/precompile-gem.yml
     with:
-      platform: aarch64-linux
+      platform: aarch64-linux-gnu
 
-  precompile-arm-linux:
+  precompile-aarch64-linux-musl:
     uses: ./.github/workflows/precompile-gem.yml
     with:
-      platform: arm-linux
+      platform: aarch64-linux-musl
 
-  precompile-x86-linux:
+  precompile-arm-linux-gnu:
     uses: ./.github/workflows/precompile-gem.yml
     with:
-      platform: x86-linux
+      platform: arm-linux-gnu
 
-  precompile-x86_64-linux:
+  precompile-arm-linux-musl:
     uses: ./.github/workflows/precompile-gem.yml
     with:
-      platform: x86_64-linux
+      platform: arm-linux-musl
+
+  precompile-x86-linux-gnu:
+    uses: ./.github/workflows/precompile-gem.yml
+    with:
+      platform: x86-linux-gnu
+
+  precompile-x86-linux-musl:
+    uses: ./.github/workflows/precompile-gem.yml
+    with:
+      platform: x86-linux-musl
+
+  precompile-x86_64-linux-gnu:
+    uses: ./.github/workflows/precompile-gem.yml
+    with:
+      platform: x86_64-linux-gnu
+
+  precompile-x86_64-linux-musl:
+    uses: ./.github/workflows/precompile-gem.yml
+    with:
+      platform: x86_64-linux-musl
 
   precompile-arm64-darwin:
     uses: ./.github/workflows/precompile-gem.yml
@@ -95,7 +115,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3", "3.4", "truffleruby"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4.0-rc1", "truffleruby"]
     runs-on: "ubuntu-latest"
     steps:
       - uses: actions/checkout@v4
@@ -116,7 +136,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3", "3.4"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4.0-rc1"]
     runs-on: "macos-13"
     steps:
       - uses: actions/checkout@v4
@@ -134,16 +154,12 @@ jobs:
 
   test-windows-2019:
     needs: "build-cruby-gem"
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby: ["2.6", "2.7", "3.0"]
     runs-on: "windows-2019"
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ matrix.ruby }}
+          ruby-version: "3.0"
           bundler-cache: true
       - uses: actions/download-artifact@v4
         with:
@@ -159,7 +175,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "head"]
     runs-on: "windows-2022"
     steps:
       - uses: actions/checkout@v4
@@ -197,39 +213,60 @@ jobs:
           prepare: pkg install -y ruby devel/ruby-gems sysutils/rubygem-bundler shells/bash devel/gmake
           run: ./scripts/test-gem-install
 
-  test-precompiled-aarch64-linux:
-    needs: "precompile-aarch64-linux"
+  test-precompiled-aarch64-linux-gnu:
+    needs: "precompile-aarch64-linux-gnu"
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
         with:
-          name: cruby-aarch64-linux-gem
+          name: cruby-aarch64-linux-gnu-gem
           path: pkg
       - name: Enable execution of multi-architecture containers by QEMU
         run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
       - run: |
           docker run --rm -v "$(pwd):/argon2id" -w /argon2id \
-            --platform=linux/arm64/v8 \
+            --platform=linux/arm64 \
             ruby:${{ matrix.ruby }} \
             ./scripts/test-gem-install
 
-  test-precompiled-arm-linux:
-    needs: "precompile-arm-linux"
+  test-precompiled-aarch64-linux-musl:
+    needs: "precompile-aarch64-linux-musl"
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
         with:
-          name: cruby-arm-linux-gem
+          name: cruby-aarch64-linux-musl-gem
+          path: pkg
+      - name: Enable execution of multi-architecture containers by QEMU
+        run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - run: |
+          docker run --rm -v "$(pwd):/argon2id" -w /argon2id \
+            --platform=linux/arm64 \
+            ruby:${{ matrix.ruby }}-alpine \
+            sh -c "gem update --system && apk add bash && ./scripts/test-gem-install"
+
+  test-precompiled-arm-linux-gnu:
+    needs: "precompile-arm-linux-gnu"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          name: cruby-arm-linux-gnu-gem
           path: pkg
       - name: enable execution of multi-architecture containers by qemu
         run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
@@ -239,18 +276,39 @@ jobs:
             ruby:${{ matrix.ruby }} \
             ./scripts/test-gem-install
 
-  test-precompiled-x86-linux:
-    needs: "precompile-x86-linux"
+  test-precompiled-arm-linux-musl:
+    needs: "precompile-arm-linux-musl"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          name: cruby-arm-linux-musl-gem
+          path: pkg
+      - name: enable execution of multi-architecture containers by qemu
+        run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - run: |
+          docker run --rm -v "$(pwd):/argon2id" -w /argon2id \
+            --platform=linux/arm/v7 \
+            ruby:${{ matrix.ruby }}-alpine \
+            sh -c "gem update --system && apk add bash && ./scripts/test-gem-install"
+
+  test-precompiled-x86-linux-gnu:
+    needs: "precompile-x86-linux-gnu"
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
         with:
-          name: cruby-x86-linux-gem
+          name: cruby-x86-linux-gnu-gem
           path: pkg
       - name: Enable execution of multi-architecture containers by QEMU
         run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
@@ -260,12 +318,33 @@ jobs:
             ruby:${{ matrix.ruby }} \
             ./scripts/test-gem-install
 
-  test-precompiled-x86_64-linux:
-    needs: "precompile-x86_64-linux"
+  test-precompiled-x86-linux-musl:
+    needs: "precompile-x86-linux-musl"
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          name: cruby-x86-linux-musl-gem
+          path: pkg
+      - name: Enable execution of multi-architecture containers by QEMU
+        run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+      - run: |
+          docker run --rm -v "$(pwd):/argon2id" -w /argon2id \
+            --platform=linux/386 \
+            ruby:${{ matrix.ruby }}-alpine \
+            sh -c "gem update --system && apk add bash && ./scripts/test-gem-install"
+
+  test-precompiled-x86_64-linux-gnu:
+    needs: "precompile-x86_64-linux-gnu"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4.0-rc1"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -275,18 +354,36 @@ jobs:
           bundler-cache: true
       - uses: actions/download-artifact@v4
         with:
-          name: cruby-x86_64-linux-gem
+          name: cruby-x86_64-linux-gnu-gem
           path: pkg
       - run: ./scripts/test-gem-install
         env:
           BUNDLE_PATH: ${{ github.workspace }}/vendor/bundle
 
+  test-precompiled-x86_64-linux-musl:
+    needs: "precompile-x86_64-linux-musl"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4-rc"]
+    runs-on: ubuntu-latest
+    container:
+      image: "ruby:${{ matrix.ruby }}-alpine"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          name: cruby-x86_64-linux-musl-gem
+          path: pkg
+      - run: apk add bash
+      - run: ./scripts/test-gem-install
+
   test-precompiled-arm64-darwin:
     needs: "precompile-arm64-darwin"
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4.0-rc1"]
     runs-on: macos-14
     steps:
       - uses: actions/checkout@v4
@@ -307,7 +404,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.0", "3.1", "3.2", "3.3", "3.4.0-rc1"]
     runs-on: macos-13
     steps:
       - uses: actions/checkout@v4
@@ -345,7 +442,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "head"]
     runs-on: windows-2022
     steps:
       - uses: actions/checkout@v4
@@ -364,16 +461,12 @@ jobs:
 
   test-precompiled-x64-mingw32:
     needs: "precompile-x64-mingw32"
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby: ["2.6", "2.7", "3.0"]
     runs-on: windows-2019
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "${{ matrix.ruby }}"
+          ruby-version: "3.0"
           bundler-cache: true
       - uses: actions/download-artifact@v4
         with:
@@ -384,24 +477,6 @@ jobs:
         env:
           BUNDLE_PATH: ${{ github.workspace }}/vendor/bundle
 
-  test-precompiled-x86_64-alpine:
-    needs: "precompile-x86_64-linux"
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1", "3.2", "3.3"]
-    runs-on: ubuntu-latest
-    container:
-      image: "ruby:${{ matrix.ruby }}-alpine"
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
-        with:
-          name: cruby-x86_64-linux-gem
-          path: pkg
-      - run: apk add bash libstdc++ gcompat
-      - run: ./scripts/test-gem-install
-
   ruby-memcheck:
     runs-on: "ubuntu-latest"
     env:
@@ -410,7 +485,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby-pkgs@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4.0-rc1"
           apt-get: valgrind
           bundler-cache: true
       - run: bundle exec rake test:valgrind
diff --git a/README.md b/README.md
index d880dd1..ef1bb78 100644
--- a/README.md
+++ b/README.md
@@ -257,7 +257,7 @@ User.find_by(name: "alice")&.authenticate("password") #=> user
 
 This gem requires any of the following to run:
 
-* [Ruby](https://www.ruby-lang.org/en/) 2.6 to 3.3
+* [Ruby](https://www.ruby-lang.org/en/) 3.0 to 3.4.0-rc1
 * [JRuby](https://www.jruby.org) 9.4
 * [TruffleRuby](https://www.graalvm.org/ruby/) 24.1
 
@@ -271,9 +271,8 @@ This gem requires any of the following to run:
 Where possible, a pre-compiled native gem will be provided for the following platforms:
 
 * Linux
-    * `aarch64-linux` and `arm-linux` (requires [glibc](https://www.gnu.org/software/libc/) 2.29+)
-    * `x86-linux` and `x86_64-linux` (requires [glibc](https://www.gnu.org/software/libc/) 2.17+)
-    * [musl](https://musl.libc.org/)-based systems such as [Alpine](https://alpinelinux.org) are supported as long as a [glibc-compatible library is installed](https://wiki.alpinelinux.org/wiki/Running_glibc_programs)
+    * `aarch64-linux`, `arm-linux`, `x86-linux`, `x86_64-linux` (requires [glibc](https://www.gnu.org/software/libc/) 2.29+, RubyGems 3.3.22+ and Bundler 2.3.21+)
+    * [musl](https://musl.libc.org/)-based systems such as [Alpine](https://alpinelinux.org) are supported with Bundler 2.5.6+
 * macOS `x86_64-darwin` and `arm64-darwin`
 * Windows `x64-mingw32` and `x64-mingw-ucrt`
 * Java: any platform running JRuby 9.4 or higher
diff --git a/Rakefile b/Rakefile
index d0621dc..3736cb8 100644
--- a/Rakefile
+++ b/Rakefile
@@ -5,18 +5,22 @@ require "minitest/test_task"
 CLEAN.add("lib/**/*.{o,so,bundle}", "pkg")
 
 cross_platforms = %w[
-  aarch64-linux
-  arm-linux
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
   arm64-darwin
   x64-mingw-ucrt
   x64-mingw32
-  x86-linux
+  x86-linux-gnu
+  x86-linux-musl
   x86-mingw32
   x86_64-darwin
-  x86_64-linux
+  x86_64-linux-gnu
+  x86_64-linux-musl
 ].freeze
 
-ENV["RUBY_CC_VERSION"] = %w[3.3.0 3.2.0 3.1.0 3.0.0 2.7.0 2.6.0].join(":")
+ENV["RUBY_CC_VERSION"] = %w[3.4.0 3.3.5 3.2.0 3.1.0 3.0.0].join(":")
 
 gemspec = Gem::Specification.load("argon2id.gemspec")
 
diff --git a/argon2id.gemspec b/argon2id.gemspec
index 8a59cf0..ecb1f95 100644
--- a/argon2id.gemspec
+++ b/argon2id.gemspec
@@ -54,6 +54,6 @@ Gem::Specification.new do |s|
   s.rdoc_options = ["--main", "README.md"]
 
   s.add_development_dependency("rake-compiler", "~> 1.2")
-  s.add_development_dependency("rake-compiler-dock", "~> 1.5")
+  s.add_development_dependency("rake-compiler-dock", "~> 1.7.0.rc1")
   s.add_development_dependency("minitest", "~> 5.25")
 end