iotex-core

v1.8.2 is a regular maintenance release

1. Enhanced p2p network robustness by adding GroupID to DHT protocol in peer discovery (#3409,#3580)
2. Multiple API improvments and code refactor (#3303,#3432,#3433,#3434,#3441,#3442,#3443,#3485)
3. Remove the global config.EVMNetworkID() (#3431,#3437,#3460,#3491)
4. Use internal caching to speed up action.Address(), action.Hash(), and action.SenderAddress() (#3420,#3446)
5. Clean-up of certain obsolete code (#3453,#3463,#3464,#3465)

v1.8.1 is a regular maintenance release

1. Added websocket support for web3.js protocol (#3252,#3298)
2. Cleaned up protection code for v1.8.0 hard-fork (#3188,#3390,#3436)
3. Implemented crash log (#3456)
4. Added ChainID metrics (#3438), and multiple API improvements (#3347, #3426, #3484)
5. Code refactor and improvements (#3397,#3400,#3404)

Note that v1.8.0 has a hardfork, which will be activated at block height 17,662,681 (ETA is 05/30/2022 around 11pm UTC) on IoTeX mainnet.

1. Added chain ID into transaction for enhanced transaction security (#3188)
2. Supported staking transactions via web3 protocol (#3209)
3. Improved p2p connection robustness (#3371)
4. Multiple API improvements (#3073, #3174, #3205, #3217)
5. Introduced chainservice builder to better manage service start-up and shut-down (#3235,#3364)

1. Improved snapshot performance (#3125)
2. Faster DB operation using sorted list and saving hash value (#3143, #3160, #3170, #3172)
3. Added crash log functionality (#3185)

Note that v1.7.0 has a hardfork, which will be activated at block height 16,509,241 (ETA is 03/24/2022 around 11pm UTC) on IoTeX mainnet.

1. Corrected the GetHashFunc implementation in EVM (#2998)
2. The transaction receipt and EVM log now bear correct index values (#2923)
3. When transaction is reverted, the corresponding logs are also removed (#3014)

1. Fixed certain hardcode values in original babel service (#3038)
2. Correctly handle array in web3 request (#3050)
3. Added more tracing for slow API (#3057)
4. Fixed log query (with large block range) causing high memory usage (#3062)
5. Added gasFee info into GetActions() API (#3063)

1. Implemented HTTP server to support web3.js API in iotex-core (this removes the need of intermediate Babel bridge/service)
2. Added eth_getStorageAt method
3. Instrumented tracing to measure timing on critical code path
4. Enabled EVM tracing to collect calling stacks inside EVM
5. Performance improvement of ActPool
6. Enabled log rotate
7. Corrected nested context usage in transaction processing loop

1. fixed EVM calldata dump issue

1. Separated the p2p network for Mainnet and Testnet, this reduces the network traffic interference and noise between 2 networks
2. Rectified transaction error message to be compatible with chainlink
3. API service added ReadContractStorage() interface

Note that v1.6.0 has a hardfork, which will be activated at block height 13,979,161 (ETA is 10/28/2021 around 11pm UTC) on IoTeX mainnet.

1. Added API tracing functionality, which enables measuring and visualizing the break-down of API call timing. We'll work on API performance improvement based on the observability this tool provides in future releases
2. Exposed gRPC health check point in the API server
3. Fixed contract read issue for certain smart contracts we've seen earlier
4. ioctl tool can export private key from HDWallet now

Please note that v1.5.0 has a hardfork, which will be activated at block height 13,816,441 (ETA is 10/19/2021 around 1pm UTC) on IoTeX mainnet.

1. Approved the long-awaited community proposal to extend foundation bonus for another year starting from v1.5 activation
2. Improved the action indexer performance, smart contract query has become faster as a result

Note that v1.4.0 has a hardfork, which will be activated at block height 13,685,401 (ETA is 10/11/2021 around 10pm UTC) on IoTeX mainnet.

1. Incorporated the fix for the consensus bug that caused the minority chain split on Ethereum at Aug 17, 2021
2. More detailed error reporting for contract execution failure
3. Improved block sync speed by setting the proper target range
4. Fixed API gas estimation inconsistency by honoring the input's gas limit
   and price

Note that v1.3.0 has a hardfork, which will be activated at block height 12,289,321 (7/22/2021 ~2pm PDT) on IoTeX mainnet.

1. v1.3 has upgraded to latest EVM version so user can confidently deploy their DApps to IoTeX blockchain. This EVM upgrade supports the ChainID opcode to prevent relay attacks and enable cross-chain transparency, and has optimized gas costs of certain opcodes, especially privacy and zk computations. Click here for details
2. Optimized block sync strategy to make it more robust
3. Fixed a bug that API query needs to wait a little while to return the latest committed block
4. Fixed a bug that node stops working after network connectivity is lost. Now the node can detect the network loss/reconnect event, and automatically resume working after network connectivity is restored

1. Try out new block sync strategy
2. Fix a read contract bug, with this fix, user is able to specify the account reading the contract

1. web3js compatibility. With v1.2 user can connect their favorite tools in the
   Ethereum eco-system (such as Metamask, Subgraph) to IoTeX blockchain simply by
   setting up RPC endpoint to IoTeX endpoint
2. Support multiple chain DB files. v1.2 will now generate 1 db file for every
   1,000,000 accumulated blocks added to the blockchain. This prevents one single
   overly large db file in the long run, and opens up possibility for faster and
   incremental download (only need to download new latest db files)
3. Reduced DB file size. Together with the multiple DB files feature, the DB file
   itself has been overhaualed by using an improved block storage with better
   compression. The estimated storage saving is about 30~40% when enabling v1.2
4. Added EVM revert message in transaction receipt. For contract calls that get
   reverted in the middle, we can now see the actual revert error message from the
   transaction receipt
5. Improved transaction indexing scheme. As a result, certain API queries (for
   example, pull all transactions from an address within a block range) now get a
   much faster response
6. Improved p2p connection reliability and network robustness
7. Fix ioctl crashes in Ubuntu when creating an action

• support of getAllLogs and GetActPoolActions APIs
• ioctl support HD wallet, ioctl contract improvement
• bug fixes and test coverage improved

Please refer to: https://github.com/iotexproject/iotex-bootstrap/blob/master/changelog/v1.1-release-note.md

• improve node stability on poor blocksync request handling #2411
• fix a panic on blockmeta api #2413

• add bucket reclaim flow
• add transaction log api

native staking on IoTeX mainnet