diff --git a/codec/src/communication_value.rs b/codec/src/communication_value.rs
index 95b0cf0..1e48422 100644
--- a/codec/src/communication_value.rs
+++ b/codec/src/communication_value.rs
@@ -916,9 +916,19 @@ mod tests {
 
         let mut signer_public_keys = recipient.public_key_bundle();
         signer_public_keys.sig_cl_public_key = signer_public_key;
-        signed.verify(SENDER_ID, &signer_public_keys, ProtectionPurpose::from(1))?;
+        signed.verify_with_policy(
+            SENDER_ID,
+            &signer_public_keys,
+            ProtectionPurpose::from(1),
+            crate::ProtectionPolicy::any_supported(),
+        )?;
         assert_eq!(
-            signed.into_verified(SENDER_ID, &signer_public_keys, ProtectionPurpose::from(1))?,
+            signed.into_verified_with_policy(
+                SENDER_ID,
+                &signer_public_keys,
+                ProtectionPurpose::from(1),
+                crate::ProtectionPolicy::any_supported(),
+            )?,
             clear_payload
         );
         Ok(())
diff --git a/codec/src/data_value.rs b/codec/src/data_value.rs
index 36065f8..6eb7c1b 100644
--- a/codec/src/data_value.rs
+++ b/codec/src/data_value.rs
@@ -2391,10 +2391,11 @@ mod tests {
         assert_eq!(&encoded[15 + signature_len..], inner);
 
         let decoded = DataValue::from_bytes(&encoded).ok_or("signed value did not decode")?;
-        decoded.verify(
+        decoded.verify_with_policy(
             0x0102_0304_0506_0708,
             &public_keys,
             ProtectionPurpose::from(0xA5),
+            ProtectionPolicy::any_supported(),
         )?;
         assert!(matches!(
             decoded.clone().into_verified_with_policy(
@@ -2406,16 +2407,18 @@ mod tests {
             Err(ProtectionError::SignaturePolicyMismatch { .. })
         ));
         // Verification is non-consuming, so it can safely be repeated.
-        decoded.verify(
+        decoded.verify_with_policy(
             0x0102_0304_0506_0708,
             &public_keys,
             ProtectionPurpose::from(0xA5),
+            ProtectionPolicy::any_supported(),
         )?;
         assert_eq!(
-            decoded.clone().into_verified(
+            decoded.clone().into_verified_with_policy(
                 0x0102_0304_0506_0708,
                 &public_keys,
                 ProtectionPurpose::from(0xA5),
+                ProtectionPolicy::any_supported(),
             )?,
             original
         );
@@ -2424,10 +2427,11 @@ mod tests {
             return Err("expected signed value".into());
         };
         assert_eq!(
-            wrapper.into_verified(
+            wrapper.into_verified_with_policy(
                 0x0102_0304_0506_0708,
                 &public_keys,
                 ProtectionPurpose::from(0xA5),
+                ProtectionPolicy::any_supported(),
             )?,
             original
         );
@@ -2503,7 +2507,12 @@ mod tests {
         };
         wrong_purpose.purpose ^= 1;
         assert!(matches!(
-            wrong_purpose.verify(41, &public_keys, ProtectionPurpose::from(7)),
+            wrong_purpose.verify_with_policy(
+                41,
+                &public_keys,
+                ProtectionPurpose::from(7),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::PurposeMismatch { .. })
         ));
 
@@ -2512,7 +2521,12 @@ mod tests {
         };
         wrong_signer_id.signer_id ^= 1;
         assert!(matches!(
-            wrong_signer_id.verify(41, &public_keys, ProtectionPurpose::from(7)),
+            wrong_signer_id.verify_with_policy(
+                41,
+                &public_keys,
+                ProtectionPurpose::from(7),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::SignerIdMismatch { .. })
         ));
 
@@ -2521,7 +2535,12 @@ mod tests {
         };
         wrong_signature.signature[0] ^= 1;
         assert!(matches!(
-            wrong_signature.verify(41, &public_keys, ProtectionPurpose::from(7)),
+            wrong_signature.verify_with_policy(
+                41,
+                &public_keys,
+                ProtectionPurpose::from(7),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::InvalidSignature)
         ));
 
@@ -2530,7 +2549,12 @@ mod tests {
         };
         *wrong_value.value = DataValue::Str("replacement".into());
         assert!(matches!(
-            wrong_value.verify(41, &public_keys, ProtectionPurpose::from(7)),
+            wrong_value.verify_with_policy(
+                41,
+                &public_keys,
+                ProtectionPurpose::from(7),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::InvalidSignature)
         ));
         Ok(())
@@ -2593,9 +2617,19 @@ mod tests {
         let opened = decoded.decrypt(&keyring, ProtectionPurpose::from(2))?;
         let mut public_keys = keyring.public_key_bundle();
         public_keys.sig_cl_public_key = signer_public;
-        opened.verify(7, &public_keys, ProtectionPurpose::from(1))?;
+        opened.verify_with_policy(
+            7,
+            &public_keys,
+            ProtectionPurpose::from(1),
+            ProtectionPolicy::any_supported(),
+        )?;
         assert_eq!(
-            opened.into_verified(7, &public_keys, ProtectionPurpose::from(1))?,
+            opened.into_verified_with_policy(
+                7,
+                &public_keys,
+                ProtectionPurpose::from(1),
+                ProtectionPolicy::any_supported(),
+            )?,
             value
         );
         Ok(())
@@ -2629,8 +2663,18 @@ mod tests {
             return Err("expected signed outer wrapper".into());
         };
         assert_eq!(signed.signer_id, 7);
-        signed.verify(7, &public_keys, ProtectionPurpose::from(1))?;
-        let encrypted = signed.into_verified(7, &public_keys, ProtectionPurpose::from(1))?;
+        signed.verify_with_policy(
+            7,
+            &public_keys,
+            ProtectionPurpose::from(1),
+            ProtectionPolicy::any_supported(),
+        )?;
+        let encrypted = signed.into_verified_with_policy(
+            7,
+            &public_keys,
+            ProtectionPurpose::from(1),
+            ProtectionPolicy::any_supported(),
+        )?;
         assert!(matches!(encrypted, DataValue::Encrypted(_)));
         assert_eq!(
             encrypted.decrypt(&keyring, ProtectionPurpose::from(2))?,
@@ -2680,10 +2724,11 @@ mod tests {
 
         let mut signer_keys = outer_recipient.public_key_bundle();
         signer_keys.sig_cl_public_key = signer_public;
-        let middle = outer_signed.into_verified(
+        let middle = outer_signed.into_verified_with_policy(
             OUTER_SIGNER_ID,
             &signer_keys,
             ProtectionPurpose::from(1),
+            ProtectionPolicy::any_supported(),
         )?;
         let DataValue::Container(entries) = middle else {
             return Err("expected container inside outer signature".into());
@@ -2700,10 +2745,11 @@ mod tests {
         };
         assert_eq!(inner_wrapper.signer_id, INNER_SIGNER_ID);
         assert_eq!(
-            inner_signed.into_verified(
+            inner_signed.into_verified_with_policy(
                 INNER_SIGNER_ID,
                 &signer_keys,
                 ProtectionPurpose::from(3),
+                ProtectionPolicy::any_supported(),
             )?,
             leaf
         );
@@ -2861,11 +2907,21 @@ mod tests {
         let public_keys = keyring.public_key_bundle();
 
         assert!(matches!(
-            DataValue::Null.verify(1, &public_keys, ProtectionPurpose::from(1)),
+            DataValue::Null.verify_with_policy(
+                1,
+                &public_keys,
+                ProtectionPurpose::from(1),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::NotSigned)
         ));
         assert!(matches!(
-            DataValue::Null.into_verified(1, &public_keys, ProtectionPurpose::from(1)),
+            DataValue::Null.into_verified_with_policy(
+                1,
+                &public_keys,
+                ProtectionPurpose::from(1),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::NotSigned)
         ));
         assert!(matches!(
@@ -2909,7 +2965,12 @@ mod tests {
         };
         signed.signature[0] ^= 1;
         assert!(matches!(
-            DataValue::Signed(signed).verify(1, &signing_keys, ProtectionPurpose::from(1)),
+            DataValue::Signed(signed).verify_with_policy(
+                1,
+                &signing_keys,
+                ProtectionPurpose::from(1),
+                ProtectionPolicy::any_supported(),
+            ),
             Err(ProtectionError::InvalidSignature)
         ));
 
diff --git a/codec/src/protected.rs b/codec/src/protected.rs
index cd8ee0f..dd4f1c2 100644
--- a/codec/src/protected.rs
+++ b/codec/src/protected.rs
@@ -133,6 +133,10 @@ impl InMemoryReplayGuard {
     pub fn len(&self) -> usize {
         self.accepted.len()
     }
+
+    pub fn is_empty(&self) -> bool {
+        self.accepted.is_empty()
+    }
 }
 
 impl ReplayGuard for InMemoryReplayGuard {
diff --git a/codec/src/relay.rs b/codec/src/relay.rs
index a09ef4f..8633a75 100644
--- a/codec/src/relay.rs
+++ b/codec/src/relay.rs
@@ -1022,6 +1022,18 @@ mod tests {
         Ed25519Signer::new(&keyring.sig_cl_secret_key).expect("Ed25519 signer")
     }
 
+    fn content_open_options(
+        metadata: &VerifiedRelayMetadata,
+        policy: ProtectionPolicy,
+    ) -> RelayOpenOptions {
+        RelayOpenOptions {
+            policy,
+            decode_limits: metadata.decode_limits,
+            encode_limits: metadata.encode_limits,
+            protected_limits: metadata.protected_limits,
+        }
+    }
+
     // Test-only compatibility shims keep older fixture setup readable while
     // routing every invocation to an explicit replay choice in production.
     fn open_relay_metadata(
@@ -1345,12 +1357,12 @@ mod tests {
         )
         .expect("final recipient metadata");
         assert_eq!(final_metadata.metadata(), Some(&application_metadata));
-        let final_content = open_relay_content(
+        let final_content = open_relay_content_with_limits_without_replay(
             &final_metadata,
-            &final_recipient,
-            &sender.public_key_bundle(),
-            42,
-            policy,
+            &[&final_recipient],
+            std::slice::from_ref(&sender.public_key_bundle()),
+            Some(42),
+            content_open_options(&final_metadata, policy),
         )
         .expect("final recipient content");
         assert_eq!(final_content.content, DataValue::Str("hello".into()));
@@ -1393,22 +1405,22 @@ mod tests {
         ));
 
         assert!(
-            open_relay_content(
+            open_relay_content_with_limits_without_replay(
                 &metadata,
-                &metadata_recipient,
-                &sender.public_key_bundle(),
-                42,
-                policy,
+                &[&metadata_recipient],
+                std::slice::from_ref(&sender.public_key_bundle()),
+                Some(42),
+                content_open_options(&metadata, policy),
             )
             .is_err()
         );
 
-        let content = open_relay_content(
+        let content = open_relay_content_with_limits_without_replay(
             &metadata,
-            &final_recipient,
-            &sender.public_key_bundle(),
-            42,
-            policy,
+            &[&final_recipient],
+            std::slice::from_ref(&sender.public_key_bundle()),
+            Some(42),
+            content_open_options(&metadata, policy),
         )
         .expect("content");
         assert_eq!(content.signer_id, 7);
@@ -1416,12 +1428,12 @@ mod tests {
         assert_eq!(content.message_type, "ProtectedMessage");
         assert_eq!(content.content, DataValue::Str("hello".into()));
         assert!(matches!(
-            open_relay_content(
+            open_relay_content_with_limits_without_replay(
                 &metadata,
-                &final_recipient,
-                &sender.public_key_bundle(),
-                43,
-                policy,
+                &[&final_recipient],
+                std::slice::from_ref(&sender.public_key_bundle()),
+                Some(43),
+                content_open_options(&metadata, policy),
             ),
             Err(RelayError::NotFinalRecipient)
         ));
@@ -1512,7 +1524,12 @@ mod tests {
         .expect("relay frame");
 
         assert_eq!(
-            relay_metadata_claimed_signer_id(&frame, &[&recipient]).expect("signer ID"),
+            relay_metadata_claimed_signer_id_with_limits(
+                &frame,
+                &[&recipient],
+                DecodeLimits::default(),
+            )
+            .expect("signer ID"),
             7
         );
         let metadata = open_relay_metadata_with_keys(
@@ -1523,12 +1540,15 @@ mod tests {
             ProtectionPolicy::from(crate::SignaturePolicy::Ed25519),
         )
         .expect("relay metadata");
-        let content = open_relay_content_with_keyrings(
+        let content = open_relay_content_with_limits_without_replay(
             &metadata,
             &[&recipient],
             &[sender.public_key_bundle()],
             Some(42),
-            ProtectionPolicy::from(crate::SignaturePolicy::Ed25519),
+            content_open_options(
+                &metadata,
+                ProtectionPolicy::from(crate::SignaturePolicy::Ed25519),
+            ),
         )
         .expect("relay content");
 
@@ -1571,12 +1591,12 @@ mod tests {
         )
         .expect("relay metadata");
 
-        let content = open_relay_content_with_keyrings(
+        let content = open_relay_content_with_limits_without_replay(
             &metadata,
             &[&current_content_recipient, &previous_content_recipient],
             &[sender.public_key_bundle()],
             Some(42),
-            policy,
+            content_open_options(&metadata, policy),
         )
         .expect("previous content recipient key should decrypt");
 
@@ -1680,12 +1700,12 @@ mod tests {
         )
         .expect("metadata signed by a previous key should verify");
         assert_eq!(metadata.matched_signer_key_index(), 1);
-        let content = open_relay_content_with_keys(
+        let content = open_relay_content_with_limits_without_replay(
             &metadata,
-            &recipient,
+            &[&recipient],
             &[current_signer_public, old_signer_public],
-            42,
-            policy,
+            Some(42),
+            content_open_options(&metadata, policy),
         )
         .expect("content signed by a previous key should verify");
         assert_eq!(content.message_type, "ProtectedMessage");
diff --git a/create-web-release.mjs b/create-web-release.mjs
new file mode 100644
index 0000000..690fa5c
--- /dev/null
+++ b/create-web-release.mjs
@@ -0,0 +1,243 @@
+#!/usr/bin/env node
+
+import { execFile, spawn } from "node:child_process";
+import { access, cp, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { promisify } from "node:util";
+import { fileURLToPath } from "node:url";
+
+const execFileAsync = promisify(execFile);
+const repositoryRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), ".");
+const packageJsonPath = path.join(repositoryRoot, "package.json");
+
+function usage() {
+  return `Usage: node create-web-release.mjs [options]
+
+Build and pack the browser package using the version of the root Cargo package.
+
+Options:
+  --skip-build          Pack the existing dist/ and wasm/pkg/ artifacts
+  --output-dir <path>   Write the archive to this directory (default: repository root)
+  --help                Show this help
+`;
+}
+
+function parseArguments(arguments_) {
+  const options = {
+    outputDir: repositoryRoot,
+    skipBuild: false,
+  };
+
+  for (let index = 0; index < arguments_.length; index += 1) {
+    const argument = arguments_[index];
+    if (argument === "--help") {
+      options.help = true;
+    } else if (argument === "--skip-build") {
+      options.skipBuild = true;
+    } else if (argument === "--output-dir") {
+      const outputDir = arguments_[index + 1];
+      if (!outputDir || outputDir.startsWith("--")) {
+        throw new Error("--output-dir requires a directory path");
+      }
+      options.outputDir = path.resolve(repositoryRoot, outputDir);
+      index += 1;
+    } else if (argument.startsWith("--output-dir=")) {
+      const outputDir = argument.slice("--output-dir=".length);
+      if (!outputDir) {
+        throw new Error("--output-dir requires a directory path");
+      }
+      options.outputDir = path.resolve(repositoryRoot, outputDir);
+    } else {
+      throw new Error(`Unknown option: ${argument}`);
+    }
+  }
+
+  return options;
+}
+
+async function readJson(filePath) {
+  const source = await readFile(filePath, "utf8");
+  try {
+    return JSON.parse(source);
+  } catch (error) {
+    throw new Error(`Invalid JSON in ${path.relative(repositoryRoot, filePath)}`, {
+      cause: error,
+    });
+  }
+}
+
+async function run(command, arguments_, options = {}) {
+  const renderedArguments = arguments_.map((argument) => JSON.stringify(argument)).join(" ");
+  console.log(`\n> ${command}${renderedArguments ? ` ${renderedArguments}` : ""}`);
+
+  await new Promise((resolve, reject) => {
+    const child = spawn(command, arguments_, {
+      cwd: options.cwd ?? repositoryRoot,
+      env: options.env ?? process.env,
+      stdio: "inherit",
+    });
+
+    child.once("error", (error) => {
+      reject(new Error(`Failed to run ${command}: ${error.message}`, { cause: error }));
+    });
+    child.once("exit", (code, signal) => {
+      if (code === 0) {
+        resolve();
+        return;
+      }
+
+      const reason = signal ? `signal ${signal}` : `exit code ${code}`;
+      reject(new Error(`${command} failed with ${reason}`));
+    });
+  });
+}
+
+async function readCargoVersion() {
+  let stdout;
+  try {
+    ({ stdout } = await execFileAsync(
+      "cargo",
+      [
+        "metadata",
+        "--no-deps",
+        "--format-version",
+        "1",
+        "--manifest-path",
+        path.join(repositoryRoot, "Cargo.toml"),
+      ],
+      { cwd: repositoryRoot, maxBuffer: 1024 * 1024 },
+    ));
+  } catch (error) {
+    throw new Error(`Unable to read the root Cargo package version: ${error.message}`, {
+      cause: error,
+    });
+  }
+
+  let metadata;
+  try {
+    metadata = JSON.parse(stdout);
+  } catch (error) {
+    throw new Error("cargo metadata returned invalid JSON", { cause: error });
+  }
+
+  const rootPackage = metadata.packages?.find((packageMetadata) => packageMetadata.name === "mtp");
+  if (!rootPackage || typeof rootPackage.version !== "string") {
+    throw new Error("The root Cargo package named 'mtp' was not found");
+  }
+
+  return rootPackage.version;
+}
+
+function packageRelativePath(entry) {
+  if (typeof entry !== "string" || entry.length === 0) {
+    throw new Error("package.json files entries must be non-empty strings");
+  }
+
+  const relativePath = entry.replace(/\/$/, "");
+  if (
+    !relativePath ||
+    path.isAbsolute(relativePath) ||
+    relativePath.split(/[\\/]/u).includes("..") ||
+    relativePath.includes("*")
+  ) {
+    throw new Error(`Unsupported package file entry: ${entry}`);
+  }
+
+  return relativePath;
+}
+
+async function copyPackageFiles(stageRoot, packageJson) {
+  if (!Array.isArray(packageJson.files)) {
+    throw new Error("package.json must declare a files array for Web releases");
+  }
+
+  for (const entry of packageJson.files) {
+    const relativePath = packageRelativePath(entry);
+    const sourcePath = path.join(repositoryRoot, relativePath);
+    const destinationPath = path.join(stageRoot, relativePath);
+
+    try {
+      await access(sourcePath);
+    } catch (error) {
+      throw new Error(`Release file is missing: ${relativePath}`, { cause: error });
+    }
+
+    await mkdir(path.dirname(destinationPath), { recursive: true });
+    await cp(sourcePath, destinationPath, { recursive: true });
+  }
+}
+
+async function createRelease({ outputDir, packageJson, version }) {
+  const stageRoot = await mkdtemp(path.join(os.tmpdir(), "mtp-web-release-"));
+  const stagedPackageJson = {
+    ...packageJson,
+    version,
+  };
+
+  try {
+    await writeFile(
+      path.join(stageRoot, "package.json"),
+      `${JSON.stringify(stagedPackageJson, null, 2)}\n`,
+    );
+    await copyPackageFiles(stageRoot, packageJson);
+
+    const stagedWasmPackagePath = path.join(stageRoot, "wasm", "pkg", "package.json");
+    const stagedWasmPackageJson = await readJson(stagedWasmPackagePath);
+    stagedWasmPackageJson.version = version;
+    await writeFile(
+      stagedWasmPackagePath,
+      `${JSON.stringify(stagedWasmPackageJson, null, 2)}\n`,
+    );
+
+    await mkdir(outputDir, { recursive: true });
+    const archiveName = `${packageJson.name}-${version}.tgz`;
+    const archivePath = path.join(outputDir, archiveName);
+    await rm(archivePath, { force: true });
+
+    await run("npm", ["pack", "--pack-destination", outputDir], { cwd: stageRoot });
+
+    try {
+      await access(archivePath);
+    } catch (error) {
+      throw new Error(`npm pack did not create ${archiveName}`, { cause: error });
+    }
+
+    return archivePath;
+  } finally {
+    await rm(stageRoot, { recursive: true, force: true });
+  }
+}
+
+async function main() {
+  const options = parseArguments(process.argv.slice(2));
+  if (options.help) {
+    console.log(usage());
+    return;
+  }
+
+  const packageJson = await readJson(packageJsonPath);
+  if (packageJson.name !== "mtp") {
+    throw new Error("package.json must describe the 'mtp' Web package");
+  }
+
+  const version = await readCargoVersion();
+  console.log(`Using Cargo package version ${version}`);
+
+  if (!options.skipBuild) {
+    await run("pnpm", ["run", "clean"]);
+    await run("pnpm", ["run", "build"]);
+  }
+
+  const archivePath = await createRelease({
+    outputDir: options.outputDir,
+    packageJson,
+    version,
+  });
+  console.log(`\nCreated ${path.relative(repositoryRoot, archivePath) || archivePath}`);
+}
+
+main().catch((error) => {
+  console.error(`\n${error.message}`);
+  process.exitCode = 1;
+});
diff --git a/crypto/src/helper.rs b/crypto/src/helper.rs
index 018f0cd..6254cd8 100644
--- a/crypto/src/helper.rs
+++ b/crypto/src/helper.rs
@@ -129,7 +129,7 @@ impl<'a> MultiEncryptedMessageRef<'a> {
         &self.bytes[self.ciphertext_start..]
     }
 
-    pub fn to_owned(&self) -> MultiEncryptedMessage {
+    pub fn to_owned(self) -> MultiEncryptedMessage {
         let recipients = (0..self.count)
             .filter_map(|index| {
                 let (kem_ciphertext, encrypted_key) = self.recipient(index)?;
diff --git a/example/client/src/protected.rs b/example/client/src/protected.rs
index 74214b8..e9c2981 100644
--- a/example/client/src/protected.rs
+++ b/example/client/src/protected.rs
@@ -3,7 +3,7 @@ use std::time::{Duration, Instant};
 use mtp::client::MTPConnection;
 use mtp::codec::{
     CommunicationType, DataType, DataValue, ProtectionPolicy, ProtectedMessageBuilder,
-    ProtectionPurpose, SealedRelayBuilder, SignaturePolicy, TypeMap,
+    ProtectionPurpose, RelayOpenOptions, SealedRelayBuilder, SignaturePolicy, TypeMap,
     open_relay_content_with_limits_without_replay,
     open_relay_metadata_without_replay,
 };
@@ -165,17 +165,17 @@ pub async fn send_sealed_relay(
         &final_recipient_keyring,
         signer_id,
         &signer_keyring.public_key_bundle(),
-        RELAY_SIGNATURE_POLICY,
+        RelayOpenOptions::new(RELAY_SIGNATURE_POLICY),
     )?;
     let application_metadata = metadata
         .metadata()
         .ok_or("forwarded relay metadata was missing")?;
     let content = open_relay_content_with_limits_without_replay(
         &metadata,
-        &final_recipient_keyring,
-        &signer_keyring.public_key_bundle(),
-        FINAL_RECIPIENT_ID,
-        RELAY_SIGNATURE_POLICY,
+        &[&final_recipient_keyring],
+        &[signer_keyring.public_key_bundle()],
+        Some(FINAL_RECIPIENT_ID),
+        RelayOpenOptions::new(RELAY_SIGNATURE_POLICY),
     )?;
     if content.message_type != "ProtectedMessage" {
         return Err(format!("unexpected relay message type: {}", content.message_type).into());
diff --git a/example/server/src/handlers.rs b/example/server/src/handlers.rs
index 2d9d0cd..13a2990 100644
--- a/example/server/src/handlers.rs
+++ b/example/server/src/handlers.rs
@@ -2,7 +2,8 @@ use std::collections::HashMap;
 
 use mtp::codec::{
     CommunicationType, CommunicationValue, DataType, DataTypeId, DataValue, InMemoryReplayGuard,
-    ProtectedOpenOptions, ProtectionPolicy, ProtectionPurpose, SignaturePolicy, TypeMap,
+    ProtectedOpenOptions, ProtectionPolicy, ProtectionPurpose, RelayOpenOptions, SignaturePolicy,
+    TypeMap,
     forward_relay_frame, open_protected_with_checked,
     open_relay_content_with_limits_without_replay,
     open_relay_metadata_with_checked,
@@ -142,7 +143,7 @@ fn process_sealed_relay(
         |signer_id| {
             resolve_signer_key(signer_id, registered_clients).map(|key| vec![key])
         },
-        SIGNATURE_POLICY,
+        RelayOpenOptions::new(SIGNATURE_POLICY),
         accepted_messages,
     )
     .map_err(|e| format!("metadata relay could not authenticate metadata: {e}"))?;
@@ -164,11 +165,11 @@ fn process_sealed_relay(
 
     let content_result = open_relay_content_with_limits_without_replay(
         &metadata,
-        host_keyring,
-        &resolve_signer_key(metadata.signer_id(), registered_clients)
-            .ok_or("metadata signer key disappeared")?,
-        FINAL_RECIPIENT_ID,
-        SIGNATURE_POLICY,
+        &[host_keyring],
+        &[resolve_signer_key(metadata.signer_id(), registered_clients)
+            .ok_or("metadata signer key disappeared")?],
+        Some(FINAL_RECIPIENT_ID),
+        RelayOpenOptions::new(SIGNATURE_POLICY),
     );
     if content_result.is_ok() {
         return Err("metadata relay unexpectedly decrypted final-recipient content".into());
@@ -309,12 +310,22 @@ pub fn process_and_respond(
             let signer_id = sig.as_signed().map(|signed| signed.signer_id);
             if let Some(signer_id) = signer_id
                 && sig
-                    .verify(signer_id, pk_bundle, mtp::codec::ProtectionPurpose::from(2))
+                    .verify_with_policy(
+                        signer_id,
+                        pk_bundle,
+                        mtp::codec::ProtectionPurpose::from(2),
+                        SIGNATURE_POLICY,
+                    )
                     .is_ok()
             {
                 let dv = sig
                     .clone()
-                    .into_verified(signer_id, pk_bundle, mtp::codec::ProtectionPurpose::from(2))
+                    .into_verified_with_policy(
+                        signer_id,
+                        pk_bundle,
+                        mtp::codec::ProtectionPurpose::from(2),
+                        SIGNATURE_POLICY,
+                    )
                     .ok();
                 if let Some(entries) = dv.and_then(|value| value.as_container()) {
                     println!("  Verified SignedPayload: {:?}", entries);
@@ -335,16 +346,22 @@ pub fn process_and_respond(
             if let Ok(opened) = secure.decrypt(host_keyring, mtp::codec::ProtectionPurpose::from(4))
                 && let Some(signed) = opened.as_signed()
                 && opened
-                    .verify(
+                    .verify_with_policy(
                         signed.signer_id,
                         pk_bundle,
                         mtp::codec::ProtectionPurpose::from(3),
+                        SIGNATURE_POLICY,
                     )
                     .is_ok()
             {
                 let signer_id = signed.signer_id;
                 let dv = opened
-                    .into_verified(signer_id, pk_bundle, mtp::codec::ProtectionPurpose::from(3))
+                    .into_verified_with_policy(
+                        signer_id,
+                        pk_bundle,
+                        mtp::codec::ProtectionPurpose::from(3),
+                        SIGNATURE_POLICY,
+                    )
                     .ok();
                 if let Some(entries) = dv.and_then(|value| value.as_container()) {
                     println!("  Verified SecurePayload: {:?}", entries);
diff --git a/flake.nix b/flake.nix
index b03cd18..7951305 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,5 @@
 {
   description = "MTP - Methanium Transport Protocol";
-
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
diff --git a/host/src/config.rs b/host/src/config.rs
index 6ab4c36..0cef52a 100644
--- a/host/src/config.rs
+++ b/host/src/config.rs
@@ -227,10 +227,11 @@ impl AuthenticationAttemptLimiter for InMemoryAuthenticationAttemptLimiter {
         }
 
         for key in keys {
-            if !attempts.contains_key(&key) && attempts.len() >= self.max_keys {
-                if let Some(oldest) = attempts.keys().next().cloned() {
-                    attempts.remove(&oldest);
-                }
+            if !attempts.contains_key(&key)
+                && attempts.len() >= self.max_keys
+                && let Some(oldest) = attempts.keys().next().cloned()
+            {
+                attempts.remove(&oldest);
             }
             attempts.entry(key).or_default().push_back(now);
         }
diff --git a/package.json b/package.json
index b05b6ec..f4fef0d 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,8 @@
     "build:wasm": "MTP_TYPE_MAPS=$PWD/example-type-maps.yaml wasm-pack build wasm --target web --out-dir pkg --release && rm -f wasm/pkg/.gitignore",
     "build:ts": "rm -rf dist && tsc",
     "build": "pnpm run build:wasm && pnpm run build:ts",
-    "pack": "pnpm run clean && pnpm run build && pnpm pack",
+    "pack": "pnpm run release:web",
+    "release:web": "node create-web-release.mjs",
     "build:all": "nix run .#build-all",
     "dup": "jscpd --pattern '**/*.{rs,ts}' --ignore 'target/**' --ignore 'wasm/pkg/**' --ignore '.git/**' --min-lines 8 --min-tokens 80 --threshold 4 --reporters console --noTips .",
     "test:e2e": "tsc && node test/e2ee.mjs",
diff --git a/transport/src/connection.rs b/transport/src/connection.rs
index 3e30b93..dece604 100644
--- a/transport/src/connection.rs
+++ b/transport/src/connection.rs
@@ -1460,9 +1460,11 @@ mod tests {
 
     #[test]
     fn runtime_policy_normalizes_zero_channel_and_task_limits() {
-        let mut policy = Policy::default();
-        policy.receiver_queue_capacity = 0;
-        policy.max_concurrent_stream_tasks = 0;
+        let policy = Policy {
+            receiver_queue_capacity: 0,
+            max_concurrent_stream_tasks: 0,
+            ..Policy::default()
+        };
 
         let runtime = RuntimePolicy::from_public(&policy);