Update Aztec version to 4.2.0

.devcontainer/Dockerfile

@@ -3,7 +3,7 @@ SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=24.12.0
-ARG AZTEC_VERSION=4.2.0-aztecnr-rc.2
+ARG AZTEC_VERSION=4.2.0
 ENV AZTEC_VERSION=$AZTEC_VERSION
 ENV NON_INTERACTIVE=1
 ENV BIN_PATH=/usr/local/bin

.github/workflows/local-network.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       AZTEC_ENV: local-network
-      AZTEC_VERSION: 4.2.0-aztecnr-rc.2
+      AZTEC_VERSION: 4.2.0
 
     steps:
       - name: Checkout repository

CLAUDE.md

@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 Aztec Starter — a Pod Racing game contract built with Noir on the Aztec network. Two players allocate points across 5 tracks over 3 rounds with private state; scores are revealed at the end (commit-reveal pattern). The player who wins more tracks (best of 5) wins.
 
-**Aztec version: `4.2.0-aztecnr-rc.2`** — pinned across `Nargo.toml`, `package.json`, `config/*.json`, and README. All must stay in sync when updating.
+**Aztec version: `4.2.0`** — pinned across `Nargo.toml`, `package.json`, `config/*.json`, and README. All must stay in sync when updating.
 
 ## Build & Development Commands
 

Nargo.toml

@@ -5,4 +5,4 @@ authors = [ "" ]
 compiler_version = ">=0.18.0"
 
 [dependencies]
-aztec = { git = "https://github.com/AztecProtocol/aztec-nr/", tag = "v4.2.0-aztecnr-rc.2", directory = "aztec" }
+aztec = { git = "https://github.com/AztecProtocol/aztec-nr/", tag = "v4.2.0", directory = "aztec" }

ONBOARDING.md

@@ -9,7 +9,7 @@ This guide takes you from "reading code in a browser" to "deploying contracts" 
 * **Phases 1-2** need only a browser (read code, compile in a Codespace)
 * **Phases 3-6** need local tools (deploy, interact, extend, advanced topics)
 
-**Aztec version pinned in this repo:** `4.2.0-aztecnr-rc.2` (check `Nargo.toml` and `package.json` for source of truth)
+**Aztec version pinned in this repo:** `4.2.0` (check `Nargo.toml` and `package.json` for source of truth)
 
 **Links:**
 
@@ -522,7 +522,7 @@ The `.devcontainer/` configures:
 
 * **Base image:** Ubuntu 24.04 with Node.js v22.15.0
 * **Docker-in-Docker** for running the Aztec local network
-* **Aztec CLI** installed via `curl -fsSL "https://install.aztec.network/4.2.0-aztecnr-rc.2" | VERSION="4.2.0-aztecnr-rc.2" bash -s`
+* **Aztec CLI** installed via `curl -fsSL "https://install.aztec.network/4.2.0" | VERSION="4.2.0" bash -s`
 * **VS Code extension:** `noir-lang.vscode-noir` for Noir syntax highlighting
 * **Dependencies:** `yarn install` runs automatically
 
@@ -733,7 +733,7 @@ pub unconstrained fn setup() -> (TestEnvironment, AztecAddress, AztecAddress) {
 **Aztec toolkit:**
 
 ```bash
-export VERSION=4.2.0-aztecnr-rc.2
+export VERSION=4.2.0
 curl -fsSL "https://install.aztec.network/${VERSION}" | VERSION="${VERSION}" bash -s
 ```
 

README.md

@@ -49,7 +49,7 @@ Use **Node.js version 22.15.0**.
 Install the **Aztec toolkit** (local network, CLI, and other tooling) at the correct version:
 
 ```bash
-export VERSION=4.2.0-aztecnr-rc.2
+export VERSION=4.2.0
 curl -fsSL "https://install.aztec.network/${VERSION}" | VERSION="${VERSION}" bash -s
 ```
 

config/local-network.json

@@ -8,7 +8,7 @@
   },
   "settings": {
     "skipLocalNetwork": false,
-    "version": "4.2.0-aztecnr-rc.2"
+    "version": "4.2.0"
   },
   "timeouts": {
     "deployTimeout": 120000,

docs/ONBOARDING.src.md

@@ -9,7 +9,7 @@ This guide takes you from "reading code in a browser" to "deploying contracts" 
 - **Phases 1-2** need only a browser (read code, compile in a Codespace)
 - **Phases 3-6** need local tools (deploy, interact, extend, advanced topics)
 
-**Aztec version pinned in this repo:** `4.2.0-aztecnr-rc.2` (check `Nargo.toml` and `package.json` for source of truth)
+**Aztec version pinned in this repo:** `4.2.0` (check `Nargo.toml` and `package.json` for source of truth)
 
 **Links:**
 
@@ -262,7 +262,7 @@ The `.devcontainer/` configures:
 
 - **Base image:** Ubuntu 24.04 with Node.js v22.15.0
 - **Docker-in-Docker** for running the Aztec local network
-- **Aztec CLI** installed via `curl -fsSL "https://install.aztec.network/4.2.0-aztecnr-rc.2" | VERSION="4.2.0-aztecnr-rc.2" bash -s`
+- **Aztec CLI** installed via `curl -fsSL "https://install.aztec.network/4.2.0" | VERSION="4.2.0" bash -s`
 - **VS Code extension:** `noir-lang.vscode-noir` for Noir syntax highlighting
 - **Dependencies:** `yarn install` runs automatically
 
@@ -357,7 +357,7 @@ And higher-level helpers:
 **Aztec toolkit:**
 
 ```bash
-export VERSION=4.2.0-aztecnr-rc.2
+export VERSION=4.2.0
 curl -fsSL "https://install.aztec.network/${VERSION}" | VERSION="${VERSION}" bash -s
 ```
 

package.json

@@ -27,16 +27,16 @@
     "update-readme-version": "node ./.github/scripts/update-readme-version.js"
   },
   "dependencies": {
-    "@aztec/accounts": "4.2.0-aztecnr-rc.2",
-    "@aztec/aztec.js": "4.2.0-aztecnr-rc.2",
-    "@aztec/constants": "4.2.0-aztecnr-rc.2",
-    "@aztec/entrypoints": "4.2.0-aztecnr-rc.2",
-    "@aztec/noir-contracts.js": "4.2.0-aztecnr-rc.2",
-    "@aztec/protocol-contracts": "4.2.0-aztecnr-rc.2",
-    "@aztec/pxe": "4.2.0-aztecnr-rc.2",
-    "@aztec/stdlib": "4.2.0-aztecnr-rc.2",
-    "@aztec/wallet-sdk": "4.2.0-aztecnr-rc.2",
-    "@aztec/wallets": "4.2.0-aztecnr-rc.2",
+    "@aztec/accounts": "4.2.0",
+    "@aztec/aztec.js": "4.2.0",
+    "@aztec/constants": "4.2.0",
+    "@aztec/entrypoints": "4.2.0",
+    "@aztec/noir-contracts.js": "4.2.0",
+    "@aztec/protocol-contracts": "4.2.0",
+    "@aztec/pxe": "4.2.0",
+    "@aztec/stdlib": "4.2.0",
+    "@aztec/wallet-sdk": "4.2.0",
+    "@aztec/wallets": "4.2.0",
     "dotenv": "^17.2.2"
   },
   "devDependencies": {

scripts/fees.ts

@@ -153,7 +153,7 @@ async function main() {
     })).result}`);
 
     const maxFeesPerGas = (await node.getCurrentMinFees()).mul(1.5);
-    const gasSettings = GasSettings.default({ maxFeesPerGas });
+    const gasSettings = GasSettings.fallback({ maxFeesPerGas });
 
     const privateFee = new PrivateFeePaymentMethod(fpc.address, account2.address, wallet, gasSettings);
     await bananaCoin.methods.transfer_in_private(account2.address, account1.address, 10, 0).simulate({ from: account2.address });

scripts/read_debug_logs.ts

@@ -16,6 +16,7 @@ import { SponsoredFeePaymentMethod } from "@aztec/aztec.js/fee";
 import { SponsoredFPCContractArtifact } from "@aztec/noir-contracts.js/SponsoredFPC";
 import { NO_FROM } from "@aztec/aztec.js/account";
 import { Fr } from "@aztec/aztec.js/fields";
+import { AztecAddress } from "@aztec/aztec.js/addresses";
 import { GrumpkinScalar } from "@aztec/foundation/curves/grumpkin";
 import { setupWallet } from "../src/utils/setup_wallet.js";
 import { getSponsoredFPCInstance } from "../src/utils/sponsored_fpc.js";