Klaytn v1.9.0 contains a protocol upgrade that results in backward incompatible changes, like the Ethereum hardforks. All Baobab/Cypress nodes would thus have to be upgraded to v1.9.0 or higher before the target block number. The name of the hardfork is ‘Magma’.
The planned hardfork schedule is as follows:
Magma hardfork blocknumber & estimated date
- Baobab: 98347376 11:00 AM (UTC+9) Aug 8
- Cypress: 99841497 11:00 AM (UTC+9) Aug 29
NOTE: This version updates the version of the database to support snapshot sync. You cannot downgrade to the older versions with existing data after updating to v1.9.0.
Protocol Upgrade(hardfork) Features
Implemented dynamic gas mechanism suggested in KIP71 (#1442 #1452 #1493 #1501 #1518 #1519 #1520 #1530 #1534 #1537 #1538)
Implemented APIs to support dynamic gas mechanism
klay_upperBoundGasPrice returns the maximum value of the dynamic gas price
klay_lowerBoundGasPrice returns the minimum value of the dynamic gas price
Updated klay_gasPrice to suggest 2 * currentBlock.baseFee after Magama hardfork
New Features
Developed snapshot sync (#1434 #1435 #1441 #1443 #1450 #1451 #1455 #1456 #1457 #1469 #1473 #1524)
Improvements
Invalidated the block header having a different changeSet size #1220
Added dynamic waiting time between block generation #1340
Updated callTracer and fastCallTracer to be more descriptive for SELFDESTRUCT operation #1343
Refactored BadBlock handling logic to store it in database #1371
Enhanced txpool validation logic for fee-delegation txs #1372
Introduced rlp package and update rlp-related logic #1385
Added detail revert messages at klay_call, klay_estimateGas #1408
Supported daemon execution using Docker with kpn, kcn and kbn #1476
Added constant metric for showing binary version #1488
Fixes
Fixed tracer to handle inner insta-fail #1352
Removed vote when checkVote() fails in HandleGovernanceVote #1367
Fixed multiChannelPeer ReadMsg loop to read closed ch immediately #1389
Fixed a potential buffer-over-run in transaction sorting #1398
Fixed concurrency API call bugs related to service chain #1438
Increased required consensus messages with six validators or less #1462
Filled missing Gini field to the GetStakingInfo result #1464
Fixed wrong return of api related to snapshot #1468
Fixed DoCall for free to transaction with no price fields #1540
Enhanced validations for tracer output converting logic #1549
Miscellaneous
Minor maintenance (#766 #1157 #1227 #1316 #1362 #1500 #1515)
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