Arbitrum v2.0.0 Nitro Beta 3

This release adds support for consensus v3 which further improves L1 pricing.

User-facing Improvements

• Cap l1 cost amortization: #798
• Add per batch cost: #790
• Setup goerli rollup testnet defaults: #787
• Make gasprice opcode return the basefee: #794
• Re-enable unsafe retryable entrypoints: #772
• Make gasprice opcode return 0 for eth_call's with a zero gas price: #799
• Syncing fallback storage service redesign: #745
• Consistently use NoTicketWithID() Solidity error in ArbRetryableTx: #822

Internal Highlights

• Fix internal transaction start block inputs use: #793
• Das merkle accumulator: #739
• Initialize by upgrading: #780
• Add affordances to migrate from classic contracts: #747
• Improve block-local gas rate limiting: #801
• Fix validator if genesis was imported from classic: #816
• Sequencer coordinator: reconnect to chosen if initial connection fails: #797
• Http server timeouts: #814
• Download consensus v3 WAVM machine in Dockerfile: #824

Full Changelog: v2.0.0-beta.2...v2.0.0-beta.3

Consensus V3.1

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0x588762be2f364be15d323df2aa60ffff60f2b14103b34823b6f7319acd1ae7a3

This contains the following consensus changes from consensus v3:

• Fallback query for dastree hashes: #827

Consensus V3

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0x53c288a0ca7100c0f2db8ab19508763a51c7fd1be125d376d940a65378acaee7

This contains the following consensus changes from consensus v2.1:

• Cap l1 cost amortization: #798
• Add per batch cost: #790
• Make gasprice opcode return the basefee: #794
• Fix internal transaction start block inputs use: #793
• Improve block-local gas rate limiting: #801
• Consistently use NoTicketWithID() Solidity error in ArbRetryableTx: #822

Arbitrum v2.0.0 Nitro Beta 2

This release requires a resync because of database schema changes. It adds support for a new Goerli testnet and consensus v2 which will be rolled out to Arbitrum Nova soon.

User-facing Improvements

• Update devnet chain configs and rename mainnet anytrust to Arbitrum Nova: #783
• Make the ArbSys precompile getStorageGasAvailable method view: #749
• Add retries for upstream L1 connection for daserver: #742
• Auto fetch DAS mirror list without needing restart: #743
• Allow watchtower validators to run without a key: #750
• Fix GetL1GasPriceEstimate precompile: #776
• Improve retryable autoredeem gas checks: #773

Internal Highlights

• Update L1 pricing formula: #754
• Add geth metrics server to daserver: #741
• Fix sequencer reorgs caused by delayed messages (database schema changes): #736
• Check for gas limit overflow when parsing unsigned user tx: #768
• Fix segment decompression in wrapped brotli: #771
• Initialize the network fee account for new chains as the chain owner: #777

Full Changelog: v2.0.0-beta.1...v2.0.0-beta.2

Consensus V2.1

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0x9d68e40c47e3b87a8a7e6368cc52915720a6484bb2f47ceabad7e573e3a11232

This contains the following consensus changes from consensus v1.1:

• Update L1 pricing formula: #754
• Improve retryable autoredeem gas checks: #773
• Check for gas limit overflow when parsing unsigned user tx: #768
• Fix GetL1GasPriceEstimate precompile: #776
• Initialize the network fee account for new chains as the chain owner: #777
• Fix segment decompression in wrapped brotli: #771

Consensus V1.1

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0x60516d8bf441f449f301d7bc8901d50acf0baa8b453e8e406f6c9475feac8c8c

This contains the following consensus changes from consensus v1:

• Make ArbSys precompile getStorageGasAvailable method view: #749

Arbitrum v2.0.0 Nitro Beta 1

This release breaks compatibility with the old devnet and adds support for a new anytrust network.

User-facing Improvements

• Add a new node interface method for splitting gas estimation results into their component parts: #648
• Add extra fields to tracing to track transfers done outside of EVM execution: #664
• Add an isSpent method to the outbox: #720

Internal Highlights

• At-cost L1 gas pricing: #585
• Wasm testsuite: #586
• feat: efficient merkleprooflib saves 100s gas: #624
• Change retryable refund calculation: #654
• Remove old ArbOS versions and their behaviors: #683
• Genesisblock in chainconfig and arbos-state: #691
• Add new anytrust chain config defaults: #721

Full Changelog: v2.0.0-alpha.5...v2.0.0-beta.1

Consensus V2

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0xee16b2358c81be2b9feb8486f052e74f18b8a790e4e77b4dc9e4f34d71d3b4c0

This contains the following consensus changes from consensus v1:

• Fix L1 pricing updates when a batch posting report arrives with the current timestamp: #728

Consensus V1 Release Candidate 1

This release signifies a consensus version, and is not necessarily a good version to run a node on

WAVM Module Root: 0xbb9d58e9527566138b682f3a207c0976d5359837f6e330f4017434cca983ff41

This is the first release candidate for the first finalized state transition version, breaking compatibility with the existing devnet consensus.

Arbitrum v2.0.0 Nitro Alpha 5

This release adds a number of AnyTrust improvements and features.

• Replace Retrieve API method which required passing a Data Availablity Certificate as the argument, with GetByHash which only needs the data hash.
• REST server option for daserver for serving GetByHash requests, additional to the existing RPC server.
• New storage modes! In addition to local disk file mode, there are now S3 and local disk database storage modes, see options starting with --data-availability.local-file-storage, --data-availablility.s3-storage, and --data-availability.local-db-storage
• In-memory caching mode, see --data-availability.local-cache
• Documentation in daserver-instructions updated with samples for how to run daserver as both a mirror and as a committee member.
• REST and RPC health checks for daserver.
• daserver can fall back to fetching from REST endpoints if it is missing a data hash, see the options under --data-availability.rest-aggregator. If it is able to retrieve from a REST endpoint, then it stores it locally. --data-availability.rest-aggregator.online-url-list allows fetching from a URL which contains a list of URLs, which can reference other lists so multiple parties can maintain mirror lists.