Update testnet RPC endpoint to v5#263
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The testnet node at v5.testnet.rpc.aztec-labs.com runs 5.0.0-rc.2; the 4.1.0 client failed with "Method not found: node_registerContractFunctionSignatures". Bump all @Aztec packages, the aztec-nr dependency, config/toolchain versions, and docs to 5.0.0-rc.2, and migrate code for v5 breaking changes: - Noir: MessageDelivery moved to aztec::messages::delivery and now uses constructor syntax (MessageDelivery::onchain_constrained()). - Run TS scripts with tsx instead of ts-node/esm (ts-node's ESM loader cannot resolve @aztec/standard-contracts subpath-pattern exports that @aztec/pxe now imports at runtime). - AztecAddress.fromString -> AztecAddress.fromStringUnsafe. - from: AztecAddress.ZERO -> NO_FROM for account/contract deployments. - Deploy: pass salt via deploy options and read contract/instance from the send result (returnReceipt option removed). - GasSettings.fallback now requires explicit gasLimits. - Fee-juice claims: wait for the bridged L1->L2 message to be available before claiming (rc.2 needs more than two blocks for the message to sync to L2).
5.0.0-rc.2's `aztec compile` shells out to `nargo`, which the installer places in ~/.aztec/current/internal-bin. Without it on PATH the local-network job fails with `spawn nargo ENOENT`.
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Summary
Updates the testnet node URL in
config/testnet.jsonto the v5 endpoint:https://rpc.testnet.aztec-labs.com→https://v5.testnet.rpc.aztec-labs.comThis aligns the testnet config with the v5 RPC endpoint (the repo is migrating to v5.0.0).
Note
At the time of opening this PR,
v5.testnet.rpc.aztec-labs.comis returning a503from the Kong gateway (failure to get a peer from the ring-balancer), indicating the upstream nodes behind the gateway are not currently healthy. The endpoint URL itself is correct; the gateway just has no healthy upstream peers at the moment. Worth confirming the upstream is back before/after merge.