diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..2a357c0
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,2 @@
+github: [NLnetLabs]
+custom: ['https://nlnetlabs.nl/funding/']
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..4127da1
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,72 @@
+name: ci
+on: [push, pull_request]
+jobs:
+  test:
+    name: test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        rust: [1.71, stable, beta]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v1
+      - name: Install Rust
+        uses: hecrj/setup-rust-action@v1
+        with:
+          rust-version: ${{ matrix.rust }}
+
+      # Clippy.
+      #
+      # We run Clippy for stable and beta only, to minimize the possibility of a
+      # lint requiring something in the MSRV but the opposite thing in stable,
+      # or vice versa.
+      #
+      # For stable, error out on warnings.
+      - if: matrix.rust == 'stable'
+        run: |
+          rustup component add clippy
+          cargo clippy --all --all-features -- -D warnings -W clippy::cargo
+
+      - if: matrix.rust == 'beta'
+        run: rustup component add clippy
+
+      # For beta, turn warnings into GitHub annotations.
+      - if: matrix.rust == 'beta'
+        uses: mathiasvr/command-output@v2.0.0
+        id: clippy_beta
+        with:
+          run: |
+            # We can warn on additional lints. cargo::nursery might make sense.
+            # XXX currently this only shows the first line of output. Also see
+            # https://github.com/actions/toolkit/issues/193
+            # Replacing '\n' with "%0A" might be a workaround.
+            cargo clippy --all --all-features -q --message-format short -- \
+            -W clippy::cargo # -W clippy::nursery
+
+      - if: ${{ steps.clippy_beta.outputs.stderr }}
+        env:
+          clippy_warnings: ${{ steps.clippy_beta.outputs.stderr }}
+        run: echo "::warning ::$clippy_warnings"
+
+
+      # Because of all the features, we run build and test twice -- once with
+      # full features and once without any features at all -- to make it more
+      # likely that everything works.
+
+      # Build
+      - run: cargo build --verbose --all --all-features
+      - run: cargo build --verbose --all
+
+      # Test
+      - run: cargo test --verbose --all --all-features
+      - run: cargo test --verbose --all
+
+      # Test using minimal dependency versions from Cargo.toml
+      - if: matrix.rust != 'beta'
+        run: |
+          rustup toolchain install nightly
+          cargo +nightly update -Z minimal-versions
+          cargo build --verbose --all --all-features
+          cargo test --verbose --all --all-features
+        name: Check and test with minimal-versions
diff --git a/Cargo.toml b/Cargo.toml
index d41ef1a..0cc886a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "inetnum"
-version = "0.1.0-dev"
+version = "0.1.0"
 authors = ["NLnet Labs <routing-team@nlnetlabs.nl>"]
 categories = ["network-programming"]
 description = "Types for IP address prefixes and ASNs."
@@ -14,7 +14,7 @@ license = "BSD-3-Clause"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-arbitrary   = { version = "1", optional = true, features = ["derive"] }
+arbitrary   = { version = "1.3", optional = true, features = ["derive"] }
 serde       = { version = "1.0.165", optional = true, features = ["derive"] }
 
 [dev-dependencies]
diff --git a/Changelog.md b/Changelog.md
new file mode 100644
index 0000000..16bceb0
--- /dev/null
+++ b/Changelog.md
@@ -0,0 +1,8 @@
+# Changelog
+
+## 0.1.0
+
+Released 2024-03-21.
+
+Initial release.
+