v0.3.1

Release notes

This patch release includes a fix to optimise CPU usage for processing UserOperations from the mempool.

v0.3.1 is not recommended for mainnet use.

---

What's Changed

• Only replace ops if both fee values increase by >= 10% by @hazim-j in #86
• Add searcher mode for sending UserOperations to block builders by @hazim-j in #94
• Fix documentation link in readme by @antonydenyer in #93
• Optimize CPU utilization on Bundler go-routine by @hazim-j in #96

New Contributors

• @antonydenyer made their first contribution in #93

Full Changelog: v0.3.0...v0.3.1

v0.3.0

Release notes

This release supports the latest ERC-4337 EntryPoint and includes updates to pass a new set of tests in the bundler specification test suites.

v0.3.0 is not recommended for mainnet use.

ERC-4337 contracts @6dea6d8

This version supports the EntryPoint deployed at eth-infinitism/account-abstraction@6dea6d8.

• EntryPoint address: 0x0F46c65C17AA6b4102046935F33301f0510B163A

Full coverage of RPC methods in the eth namespace

This version adds the final method eth_getUserOperationByHash to complete the list of required RPC methods as specified in the EIP:

• eth_sendUserOperation
• eth_estimateUserOperationGas
• eth_getUserOperationByHash
• eth_getUserOperationReceipt
• eth_supportedEntryPoints
• eth_chainId

---

What's Changed

• Update EntryPoint to eth-infinitism/account-abstraction@6dea6d8 by @hazim-j in #79
• Allow configurable max ops for unstaked sender by @hazim-j in #80
• Update tracer validation to account for storage struct by @hazim-j in #81
• Improve results for eth_estimateUserOperationGas by @hazim-j in #82
• Add RPC method for eth_getUserOperationByHash by @hazim-j in #83
• Add SELFDESTRUCT to banned opcodes by @hazim-j in #84

Full Changelog: v0.2.0...v0.3.0

v0.2.0

Release notes

This release supports the latest ERC-4337 contracts at v0.4.0 and includes fixes to pass the initial bundler test suite.

v0.2.0 is not recommended for mainnet use.

ERC-4337 contracts v0.4.0

This version supports the EntryPoint deployed at eth-infinitism/account-abstraction@6aeb396. See release notes here.

• EntryPoint address: 0x1306b01bC3e4AD202612D3843387e94737673F53

Bundler test suite

A bundler test suite was recently released which allows implementations to verify its level of EIP-4337 compliance. This version passes all initial test cases.

The test suite itself is still a W.I.P. Subsequent updates to stackup-bundler will include increasing compliance coverage based on new test cases.

---

What's Changed

• Update EntryPoint to eth-infinitism/account-abstraction@v0.4.0 by @hazim-j in #75
• Validate entity storage access by @hazim-j in #76
• Fix failing bundler spec tests by @hazim-j in #77

Full Changelog: v0.1.1...v0.2.0

v0.1.1

Release notes

This patch release includes updates to the client sanity checks to comply with changes from eth-infinitism/account-abstraction#144

v0.1.1 is not recommended for mainnet use.

---

What's Changed

• Add dependabot by @hazim-j in #57
• Add CI pipeline for test and lint by @hazim-j in #64
• Refactor: Move sender sanity checks into separate file with tests by @hazim-j in #66
• Add validateInitCode to userOp checks by @hazim-j in #67
• Refactor: Move VerificationGas checks to own file with tests by @hazim-j in #68
• Update PaymasterAndData check to latest EIP changes by @hazim-j in #69
• Refactor: Move callGasLimit check to own file with test by @hazim-j in #70
• Refactor: Move gas fee check to own file with test by @hazim-j in #71
• Update Mempool to support multiple ops per Sender by @hazim-j in #72
• Add pending UserOps by same sender to context by @hazim-j in #73
• Add check to validate pending UserOps by @hazim-j in #74

Full Changelog: v0.1.0...v0.1.1

v0.1.0

Release notes

This release marks the first initial version of stackup-bundler with a major version 0 that can be used in testnet.

v0.1.0 is not recommended for mainnet use.

EntryPoint support

This version supports the EntryPoint deployed at eth-infinitism/account-abstraction@57c5d77c77.

• EntryPoint address: 0x78d4f01f56b982a3B03C4E127A5D3aFa8EBee686

Future breaking changes

For v0, each breaking change will result in a minor version bump. A patch update will be reserved for non-breaking changes that are backwards compatible. An example of a breaking change might include new EntryPoint deployments and updates to the bundler interface.

Since each EntryPoint is a seperate singleton contract, you may still use older versions without any issues.

---

What's Changed

• Add handler for JSON-RPC requests by @hazim-j in #1
• Setup config by @hazim-j in #2
• Parse UserOperation object by @hazim-j in #3
• Check sender on userOp is valid by @hazim-j in #4
• Cleanup: rename userop.FromMap to userop.New and added comments by @hazim-j in #5
• Add the basic UserOperation sanity checks by @hazim-j in #6
• Cleanup: move jsonrpc package to internal by @hazim-j in #7
• Cleanup: remove web3utils internal package by @hazim-j in #8
• Add redis backed mempool by @hazim-j in #9
• Add CLI command for running client by @hazim-j in #10
• Cleanup: fix file name typo by @hazim-j in #11
• Switch mempool to embedded database with badgerDB by @hazim-j in #12
• Setup Bundler process by @hazim-j in #13
• Cleanup: Fix bundler docs link by @hazim-j in #14
• Add relayer module for private mempool by @hazim-j in #15
• Refactor client checks in to own module by @hazim-j in #16
• Add checks for verification gas and op simulation by @hazim-j in #17
• Add check for callGasLimit by @hazim-j in #18
• Add checks for fee per gas by @hazim-j in #19
• Add paymaster reputation scoring by @hazim-j in #20
• Check paymaster has a sufficient deposit to pay for the UserOperation by @hazim-j in #21
• Run eth_estimateGas and relay batch to handleOps by @hazim-j in #22
• Add max fee to handleOps call by @hazim-j in #23
• Refactor: remove initialize.go files by @hazim-j in #24
• Clean: code layout by @hazim-j in #25
• Refactor mempool to use struct methods by @hazim-j in #26
• Run sanity checks in error group by @hazim-j in #27
• Track paymaster has enough deposit for all ops in batch by @hazim-j in #28
• Add logger using standard logr interface by @hazim-j in #29
• Refactor: cleanup modules by @hazim-j in #30
• Update Go docs by @hazim-j in #31
• Add Dockerfile by @hazim-j in #32
• Dockerfile: COPY all files before RUN by @hazim-j in #33
• Dockerfile: multi-stage build by @hazim-j in #34
• Add eth_chainId RPC method by @hazim-j in #35
• Increase default max_verification_gas by @hazim-j in #36
• Increase default max_verification_gas by @hazim-j in #37
• Change eth_sendUserOperation to return op requestID by @hazim-j in #38
• Add Caller() to logger by @hazim-j in #39
• Fix db transaction conflict error by @hazim-j in #40
• Add more context to Gin and Relayer logs by @hazim-j in #41
• Fix: Increment nextTxnTs to read latest data from MapRequestIDToClientID by @hazim-j in #42
• Update to latest EntryPoint by @hazim-j in #43
• Rename requestId to userOpHash by @hazim-j in #44
• Rename requestId to userOpHash by @hazim-j in #45
• Add cors middleware with default config by @hazim-j in #47
• Cleanup: CalcCallGasCost to NonZeroValueCall by @hazim-j in #46
• call debug_traceCall and filter for base forbidden opcodes by @hazim-j in #48
• GAS opcode only allowed if followed by CALL opcodes by @hazim-j in #49
• Add more context to relayer logs by @hazim-j in #50
• One CREATE2 opcode allowed if initCode > 0 and called during account validation by @hazim-j in #51
• Increment sleep to 5ms by @hazim-j in #52
• Add more context to newFailedOpRevert data error by @hazim-j in #53
• Use custom JS tracing by @hazim-j in #54
• Update EntryPoint to eth-infinitism/account-abstraction@57c5d77c77 by @hazim-j in #55
• Fix: NUMBER delimiter and opcode count error in tracing by @hazim-j in #56

New Contributors

• @hazim-j made their first contribution in #1

Full Changelog: https://github.com/stackup-wallet/stackup-bundler/commits/v0.1.0