Bump aztec version to v4.1.0-rc4

.devcontainer/development/Dockerfile

@@ -3,7 +3,7 @@ SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=24.12.0
-ENV AZTEC_VERSION=4.0.0-devnet.2-patch.0
+ENV AZTEC_VERSION=4.1.0-rc.4
 
 # Install dependencies including newer libstdc++
 RUN apt update && apt install -y \

.devcontainer/mac-arm/Dockerfile

@@ -3,7 +3,7 @@ SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=24.12.0
-ENV AZTEC_VERSION=4.0.0-devnet.2-patch.0
+ENV AZTEC_VERSION=4.1.0-rc.4
 
 # Install dependencies including newer libstdc++
 RUN apt update && apt install -y \

.devcontainer/testing/Dockerfile

@@ -3,7 +3,7 @@ SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=24.12.0
-ENV AZTEC_VERSION=4.0.0-devnet.2-patch.0
+ENV AZTEC_VERSION=4.1.0-rc.4
 
 # Install dependencies including newer libstdc++
 RUN apt update && apt install -y \

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ concurrency:
 
 env:
   NODE_VERSION: '24.12.0'
-  AZTEC_VERSION: 4.0.0-devnet.2-patch.0
+  AZTEC_VERSION: 4.1.0-rc.4
   NARGO_VERSION: 1.0.0-beta.18
 
 jobs:

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ permissions:
 
 env:
   NODE_VERSION: '24.12.0'
-  AZTEC_VERSION: 4.0.0-devnet.2-patch.0
+  AZTEC_VERSION: 4.1.0-rc.4
 
 jobs:
   publish:

.mcp.json

@@ -4,7 +4,7 @@
       "command": "npx",
       "args": ["-y", "aztec-mcp-server@latest"],
       "env": {
-        "AZTEC_DEFAULT_VERSION": "v4.0.0-devnet.2-patch.0"
+        "AZTEC_DEFAULT_VERSION": "v4.1.0-rc.4"
       }
     },
     "aztec-local": {

CLAUDE.md

@@ -14,7 +14,7 @@
 
 ## A1) Tech stack and versions (source of truth)
 - Noir: `v1.0.0-beta.x`
-- Aztec Network: `v4.0.0-devnet.2-patch.0`
+- Aztec Network: `v4.1.0-rc.4`
 - Build tool: Nargo (Noir CLI + package tool)
 - TypeScript tooling: Yarn scripts (see A3)
 - Solidity: Present in this repo (exact compiler/version must be taken from repo config, not guessed)

README.md

@@ -13,9 +13,9 @@ The full project documentation is the main entrypoint for understanding the syst
 
 | Component | Version | Source |
 |-----------|---------|--------|
-| Noir / Aztec.nr | `v4.0.0-devnet.2-patch.0` | `noir/aztec-state-migration/Nargo.toml` |
-| Aztec JS packages | `v4.0.0-devnet.2-patch.0` | `package.json` dependencies |
-| Solidity / Aztec L1 contracts | `v4.0.0-devnet.2-patch.0` | `solidity/foundry.toml` |
+| Noir / Aztec.nr | `v4.1.0-rc.4` | `noir/aztec-state-migration/Nargo.toml` |
+| Aztec JS packages | `v4.1.0-rc.4` | `package.json` dependencies |
+| Solidity / Aztec L1 contracts | `v4.1.0-rc.4` | `solidity/foundry.toml` |
 | Poseidon2 EVM | `a3b4205` (git rev) | `solidity/foundry.toml` |
 | OpenZeppelin | `5.6.0-rc.1` | `solidity/foundry.toml` |
 
@@ -42,7 +42,7 @@ If not using dev containers, install the following:
 - **Node.js** >= 24.12.0
 - **Yarn** 1.22.22 (classic)
 - **Foundry** (`forge`, `cast`, `anvil`)
-- **Aztec CLI** v4.0.0-devnet.2-patch.0 -- install via `curl -sL https://install.aztec.network/v4.0.0-devnet.2-patch.0/ | bash`
+- **Aztec CLI** v4.1.0-rc.4 -- install via `curl -sL https://install.aztec.network/v4.1.0-rc.4/ | bash`
 
 Then install project dependencies:
 
@@ -192,7 +192,7 @@ Open `http://localhost:4000` in your browser. Changes to `.md` files are live-re
 
 **Process cleanup.** Run `yarn test:stop` (which runs `e2e-tests/utils/dual-rollup-stop.sh`) to kill Anvil and node processes.
 
-**Nargo compilation errors.** Noir is version-sensitive. Ensure the Aztec CLI version matches `v4.0.0-devnet.2-patch.0`. Run `aztec --version` to verify.
+**Nargo compilation errors.** Noir is version-sensitive. Ensure the Aztec CLI version matches `v4.1.0-rc.4`. Run `aztec --version` to verify.
 
 ## Project Structure
 

e2e-tests/migration-key-registry.test.ts

@@ -52,7 +52,9 @@ async function main() {
   // Step 2: Deploy MigrationKeyRegistry
   // ============================================================
   console.log("2. Deploying MigrationKeyRegistry...");
-  const registry = await MigrationKeyRegistryContract.deploy(wallet).send({
+  const { contract: registry } = await MigrationKeyRegistryContract.deploy(
+    wallet,
+  ).send({
     from: alice,
   });
   console.log(`   Deployed at: ${registry.address}\n`);
@@ -62,7 +64,7 @@ async function main() {
   // ============================================================
   console.log("3. Verifying initial state...");
   const initialKey = toPoint(
-    await registry.methods.get(alice).simulate({ from: alice }),
+    (await registry.methods.get(alice).simulate({ from: alice })).result,
   );
   console.log(`   Alice's initial mpk: ${pointStr(initialKey)}`);
   if (!initialKey.isZero()) {
@@ -79,17 +81,17 @@ async function main() {
   console.log(`   msk: ${msk}`);
   console.log(`   mpk (computed in TS): ${mpk}`);
 
-  const registerTx = await registry.methods
+  const { receipt: registerReceipt } = await registry.methods
     .register(mpk.toNoirStruct())
     .send({ from: alice });
-  console.log(`   Register tx: ${registerTx.txHash}\n`);
+  console.log(`   Register tx: ${registerReceipt.txHash}\n`);
 
   // ============================================================
   // Step 5: Query and verify the registered key
   // ============================================================
   console.log("5. Querying registered key...");
   const registeredKey = toPoint(
-    await registry.methods.get(alice).simulate({ from: alice }),
+    (await registry.methods.get(alice).simulate({ from: alice })).result,
   );
   console.log(`   Alice's mpk: ${pointStr(registeredKey)}`);
 
@@ -108,7 +110,7 @@ async function main() {
   // ============================================================
   console.log("6. Verifying Bob has no key...");
   const bobKey = toPoint(
-    await registry.methods.get(bob).simulate({ from: bob }),
+    (await registry.methods.get(bob).simulate({ from: bob })).result,
   );
   console.log(`   Bob's mpk: ${pointStr(bobKey)}`);
   if (!bobKey.isZero()) {
@@ -146,7 +148,7 @@ async function main() {
   // ============================================================
   console.log("8. Verifying key unchanged after failed registration...");
   const keyAfterFailedRegister = toPoint(
-    await registry.methods.get(alice).simulate({ from: alice }),
+    (await registry.methods.get(alice).simulate({ from: alice })).result,
   );
   if (!keyAfterFailedRegister.equals(mpk)) {
     throw new Error("Key changed after failed second registration");

e2e-tests/migration-mode-a.test.ts

@@ -74,7 +74,7 @@ async function main() {
   await oldAppUser.methods
     .mint(oldUserManager.address, MINT_AMOUNT)
     .send({ from: oldUserManager.address });
-  const oldBalanceAfterMint = await oldAppUser.methods
+  const { result: oldBalanceAfterMint } = await oldAppUser.methods
     .get_balance(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(`   Minted ${MINT_AMOUNT}, balance: ${oldBalanceAfterMint}\n`);
@@ -97,7 +97,7 @@ async function main() {
     )
     .send({ from: oldUserManager.address });
 
-  const oldBalanceAfterLock = await oldAppUser.methods
+  const { result: oldBalanceAfterLock } = await oldAppUser.methods
     .get_balance(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(`   Balance after lock: ${oldBalanceAfterLock}\n`);
@@ -152,7 +152,7 @@ async function main() {
 
   console.log("Step 7. Calling migrate on NEW rollup...");
 
-  const newBalanceBefore = await newAppUser.methods
+  const { result: newBalanceBefore } = await newAppUser.methods
     .get_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(`   Balance on NEW rollup before migrate: ${newBalanceBefore}`);
@@ -166,7 +166,7 @@ async function main() {
     )
     .send({ from: newUserManager.address });
 
-  const newBalanceAfter = await newAppUser.methods
+  const { result: newBalanceAfter } = await newAppUser.methods
     .get_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(`   Balance on NEW rollup after: ${newBalanceAfter}`);
@@ -205,7 +205,7 @@ async function main() {
     .mint_public(oldUserManager.address, PUBLIC_MINT_AMOUNT)
     .send({ from: oldUserManager.address });
 
-  const oldPublicBalanceAfterMint = await oldAppUser.methods
+  const { result: oldPublicBalanceAfterMint } = await oldAppUser.methods
     .get_public_balance(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(
@@ -232,7 +232,7 @@ async function main() {
     )
     .send({ from: oldUserManager.address });
 
-  const oldPublicBalanceAfterLock = await oldAppUser.methods
+  const { result: oldPublicBalanceAfterLock } = await oldAppUser.methods
     .get_public_balance(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(
@@ -307,7 +307,7 @@ async function main() {
   // ============================================================
   console.log("Step 12. Calling migrate_to_public_mode_a on NEW rollup...");
 
-  const newPublicBalanceBefore = await newAppUser.methods
+  const { result: newPublicBalanceBefore } = await newAppUser.methods
     .get_public_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(
@@ -323,7 +323,7 @@ async function main() {
     )
     .send({ from: newUserManager.address });
 
-  const newPublicBalanceAfter = await newAppUser.methods
+  const { result: newPublicBalanceAfter } = await newAppUser.methods
     .get_public_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(

e2e-tests/migration-mode-b.test.ts

@@ -101,7 +101,7 @@ async function main() {
     .send({ from: oldUserManager.address });
   console.log(`   Burned ${BURN_AMOUNT_1} tokens (burn 1)`);
 
-  const oldBalance = await oldAppUser.methods
+  const { result: oldBalance } = await oldAppUser.methods
     .get_balance(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(`   Total balance on OLD rollup: ${oldBalance}\n`);
@@ -124,7 +124,7 @@ async function main() {
     .register(mpk.toNoirStruct())
     .send({ from: oldUserManager.address });
 
-  const registeredKey = await oldUserKeyRegistry.methods
+  const { result: registeredKey } = await oldUserKeyRegistry.methods
     .get(oldUserManager.address)
     .simulate({ from: oldUserManager.address });
   console.log(`   Verified registered mpk: ${registeredKey}\n`);
@@ -150,7 +150,7 @@ async function main() {
     )
     .send({ from: newDeployerManager.address });
 
-  const storedSnapshot = await newArchiveRegistry.methods
+  const { result: storedSnapshot } = await newArchiveRegistry.methods
     .get_snapshot_height()
     .simulate({ from: newDeployerManager.address });
   console.log(`   Stored snapshot height: ${storedSnapshot}\n`);
@@ -239,7 +239,7 @@ async function main() {
   const migrateAmount = fullProof.note_proof_data.data.value;
   console.log(`   Migrating amount: ${migrateAmount}`);
 
-  const newBalanceBefore = await newAppUser.methods
+  const { result: newBalanceBefore } = await newAppUser.methods
     .get_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(`   Balance on NEW rollup before : ${newBalanceBefore}`);
@@ -257,7 +257,7 @@ async function main() {
     )
     .send({ from: newUserManager.address });
 
-  const newBalanceAfter = await newAppUser.methods
+  const { result: newBalanceAfter } = await newAppUser.methods
     .get_balance(newUserManager.address)
     .simulate({ from: newUserManager.address });
   console.log(`   Balance on NEW rollup after : ${newBalanceAfter}`);