[DO NOT MERGE] Update testnet to 4.2.0-aztecnr-rc.2 (from next)

.devcontainer/Dockerfile

@@ -2,8 +2,8 @@ FROM --platform=linux/amd64 ubuntu:24.04
 SHELL ["/bin/bash", "-c"]
 
 ENV NVM_DIR=/root/.nvm
-ENV NODE_VERSION=22.15.0
-ARG AZTEC_VERSION=4.0.0-devnet.2-patch.1
+ENV NODE_VERSION=24.12.0
+ARG AZTEC_VERSION=4.2.0-aztecnr-rc.2
 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: 4.0.0-devnet.2-patch.1
+      AZTEC_VERSION: 4.2.0-aztecnr-rc.2
 
     steps:
       - name: Checkout repository
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "22"
+          node-version: "24"
           cache: "yarn"
 
       - name: Install Foundry

.github/workflows/testnet.yaml

@@ -0,0 +1,41 @@
+name: Testnet Tests
+
+on:
+  push:
+    branches:
+      - testnet
+  pull_request:
+    branches:
+      - testnet
+  workflow_dispatch:
+
+concurrency:
+  group: testnet-deploy
+  cancel-in-progress: true
+
+jobs:
+  testnet-deploy-account:
+    name: Deploy Account to Testnet
+    runs-on: ubuntu-latest
+    env:
+      AZTEC_ENV: testnet
+      L1_PRIVATE_KEY: ${{ secrets.L1_PRIVATE_KEY }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - name: Read Aztec version from config
+        run: echo "AZTEC_VERSION=$(jq -r '.settings.version' config/testnet.json)" >> $GITHUB_ENV
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+          cache: "yarn"
+
+      - name: Install project dependencies
+        run: yarn
+
+      - name: Deploy account to testnet
+        run: yarn deploy-account::testnet

.remarkrc.mjs

@@ -3,7 +3,7 @@ import { remarkIncludeCode } from 'include_code';
 export default {
   plugins: [
     [remarkIncludeCode, {
-      codeDir: './src',
+      codeDir: '.',
       repository: { owner: 'AztecProtocol', name: 'aztec-starter' },
       commitTag: 'main',
       validation: 'error',

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: `4.0.0-devnet.2-patch.1`** — pinned across `Nargo.toml`, `package.json`, `config/*.json`, and README. All must stay in sync when updating.
+**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.
 
 ## Build & Development Commands
 
@@ -47,33 +47,31 @@ NODE_NO_WARNINGS=1 node --experimental-vm-modules $(yarn bin jest) --no-cache --
 
 ## Deployment & Scripts
 
-All scripts support `::devnet` and `::testnet` suffixes for remote network targeting:
+All scripts support `::testnet` suffixes for remote network targeting:
 
 ```bash
 yarn deploy               # Deploy contract to local network
-yarn deploy::devnet       # Deploy contract to devnet
 yarn deploy::testnet      # Deploy contract to testnet
 yarn deploy-account       # Deploy a Schnorr account
 yarn multiple-wallet      # Deploy from one wallet, interact from another
 yarn profile              # Profile a transaction deployment
 yarn read-logs            # Demo utility function for client-side debug logging
-yarn read-logs::devnet    # Same on devnet
 yarn read-logs::testnet   # Same on testnet
 ```
 
 ## Environment Configuration
 
-- `AZTEC_ENV` variable selects config: `local-network` (default), `devnet`, or `testnet`
-- Config files: `config/local-network.json`, `config/devnet.json`, `config/testnet.json`
+- `AZTEC_ENV` variable selects config: `local-network` (default) or `testnet`
+- Config files: `config/local-network.json`, `config/testnet.json`
 - `config/config.ts` — singleton `ConfigManager` loads the appropriate JSON based on `AZTEC_ENV`
 - `.env` stores secrets (SECRET, SIGNING_KEY, SALT, contract keys) — never commit
 
 ## Branch Model
 
-- **`next` branch** — default branch; used for local network and devnet development
+- **`next` branch** — default branch; used for local network development
 - **`testnet` branch** — used for testnet development; may run a different Aztec version
 
-Devnet PRs target `next`. Testnet PRs target `testnet`. Each branch pins its own Aztec version independently.
+PRs target `next`. Testnet PRs target `testnet`. Each branch pins its own Aztec version independently.
 
 ## Project Structure
 
@@ -98,7 +96,7 @@ Devnet PRs target `next`. Testnet PRs target `testnet`. Each branch pins its own
 
 **TypeScript utilities:**
 
-- `src/utils/setup_wallet.ts` — creates `EmbeddedWallet` with environment-aware config (prover enabled on devnet)
+- `src/utils/setup_wallet.ts` — creates `EmbeddedWallet` with environment-aware config
 - `src/utils/create_account_from_env.ts` — Schnorr account from env vars
 - `src/utils/deploy_account.ts` — account deployment with sponsored fees
 - `src/utils/sponsored_fpc.ts` — SponsoredFPC (Fee Payment Contract) setup
@@ -113,7 +111,7 @@ Devnet PRs target `next`. Testnet PRs target `testnet`. Each branch pins its own
 - **ESM project**: `"type": "module"` in package.json. All TS scripts run via `node --loader ts-node/esm`.
 - **Private-public interaction**: `play_round` is private (creates `GameRoundNote` notes), then enqueues a public call (`validate_and_play_round`) to update round counters. `finish_game` reads private notes, sums them, and enqueues a public call to reveal totals.
 - **Fee payment**: All transactions use `SponsoredFeePaymentMethod` via the SponsoredFPC contract.
-- **Wallet setup**: `EmbeddedWallet.create()` with `ephemeral: true` for tests; prover is enabled only on devnet.
+- **Wallet setup**: `EmbeddedWallet.create()` with `ephemeral: true` for tests.
 - **PXE store**: Data persists in `./store`. Must delete after local network restart to avoid stale state errors.
 
 ## Simulate Before Send (IMPORTANT)
@@ -152,7 +150,7 @@ When updating the Aztec version, update all of these locations:
 
 1. `Nargo.toml` — `aztec` dependency tag
 2. `package.json` — all `@aztec/*` dependency versions
-3. `config/local-network.json`, `config/devnet.json`, and/or `config/testnet.json` — `settings.version` (update the configs relevant to the branch you're on)
+3. `config/local-network.json` and/or `config/testnet.json` — `settings.version` (update the configs relevant to the branch you're on)
 4. `README.md` — install command version
 
 > **Note:** The `next` and `testnet` branches may pin different Aztec versions. Only update the config files relevant to the branch.

Nargo.toml

@@ -5,4 +5,4 @@ authors = [ "" ]
 compiler_version = ">=0.18.0"
 
 [dependencies]
-aztec = { git = "https://github.com/AztecProtocol/aztec-nr/", tag = "v4.0.0-devnet.2-patch.1", directory = "aztec" }
+aztec = { git = "https://github.com/AztecProtocol/aztec-nr/", tag = "v4.2.0-aztecnr-rc.2", directory = "aztec" }