[2.0.1] - 2019-09-6

Fixed

• Sync: chain sync fixture

Checksums

File	Checksum (MD5)
open-chain-2.0.1.jar	BF0BA039F2BB7781CF57AA103DDF45C2
open-chain-2.0.1_installer-macos.dmg	904ee752fcd02eb5d0e2d8e940f32595
open-chain-2.0.1_installer-unix.sh	299485d78d030eb4da5fae4fcb0de2a0
open-chain-2.0.1_installer-windows-x64.exe	88d1995663871b89f7af865f93d63528
open-chain-2.0.1_portable-unix.tar.gz	6551849a7e149fed7f85f435bf65128e
open-chain-2.0.1_portable-windows-x64.zip	c8a019ba59be16201daf4488fb56db27

[2.0.0] - 2019-02-25

Changed

• Consensus: block production time is increased
• Core: states reflect only latest blockchain status
• RPC: transaction's receipts are displayed on Wallet UI
• RPC: contract estimation button is added to Wallet UI

Checksums

File	Checksum (MD5)
open-chain-2.0.0.jar	686E56D7DAC65BCE7511220A5D1039EF
open-chain-2.0.0_installer-macos.dmg	BF8A7387509175831F5226CDB4D2BB3B
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open-chain-2.0.0_portable-unix.tar.gz	6D2BF1FC251C96789EC53A62AF5D468B
open-chain-2.0.0_portable-windows-x64.zip	ADB72A15F7DF4CE8713F45D109588DBD

[1.9.0] - 2019-02-08

Added

• Smart contracts: contract cost estimation
• Smart contracts: contract execution
• Smart contracts: rollback contract execution on failure
• Smart contracts: added method to transfer tokens
• Core: transaction receipts
• Database: smart contract table

Changed

• Core: transfer transaction structure, field for smart contract bytecode added
• Core: transfer transaction extended for contract interactions

Checksums

File	Checksum (MD5)
open-chain-1.9.0.jar	53A5C84AC7B8BA5A481BB697EAB05B91
open-chain-1.9.0_installer-macos.dmg	0A81EABC273004A42AED22C143E862B0
open-chain-1.9.0_installer-unix.sh	C319F9B1AF854B57B2EC500C75CBCAC3
open-chain-1.9.0_installer-windows-x64.exe	669AB2091A35B369E2B11CA1A92012B6
open-chain-1.9.0_portable-unix.tar.gz	13853E060852EA935FE72E20C1107D3F
open-chain-1.9.0_portable-windows-x64.zip	C66D598104FECD4517F25F3938A6D860

[1.8.0] - 2019-01-25

Added

• Core: blocks rollback
• Core: wallet states
• Core: delegate states
• Core: light synchronization

Changed

• Consensus: sequential ordering of active delegates
• Consensus: in case active delegate does not produce block due to its possible unavailability, boot node will produce it
• Consensus: invalid blocks are not broadcast across the network
• Core: removed redundant logs
• Core: delegate info is stored in a state
• Core: wallet balance is stored in a state
• Core: account has one vote for a delegate

Checksums

File	Checksum (MD5)
open-chain-1.8.0.jar	99D7D59B8EAB7C62D35B21185497AA92
open-chain-1.8.0_installer-macos.dmg	7801DC046716758F8A889BF3C172098E
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open-chain-1.8.0_installer-windows-x64.exe	863B1E8B37848BC5C0AD5DA27F8D2549
open-chain-1.8.0_portable-unix.tar.gz	DD667D7894F1C17B5CA4AE12AF96D47A
open-chain-1.8.0_portable-windows-x64.zip	26065E75EB15C7571FB05015B9763BDF

[1.7.1] - 2019-01-21

Fixed

• Sync: persistence a large number of blocks

Checksums

File	Checksum (MD5)
open-chain-1.7.1.jar	C3995FA1C5C7E0DE478B8C68F8CA645C
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open-chain-1.7.1_portable-windows-x64.zip	96D8F5F182C1E22B3FA013040ED8980E

[1.7.0] - 2019-01-17

Added

• Sync: full synchronization, all types of transactions are saved
• Sync: wallet balances also synchronized

Changed

• Sync: general stability improvements
• Network: operational number of connections is lowered - even if node has not sufficient amount of connections, it still operates with blocks and transactions

Checksums

File	Checksum (MD5)
open-chain-1.7.0.jar	CEF9844D90659535A9C10C6D8BFBFA8E
open-chain-1.7.0_installer-macos.dmg	9C20C4F784C4AE8E49FEBB71DC9FBFB7
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open-chain-1.7.0_portable-unix.tar.gz	ABE486D1FE7EDB0046A6B461333A47C3
open-chain-1.7.0_portable-windows-x64.zip	BDCC9D52D56574CF1A01CC5DEA122C96

[1.6.0] - 2019-01-10

Added

• Smart contracts: contract object serialization
• Smart contracts: contract object deserialization

Changed

• Sync: blocks synchronization (blocks upload from latest genesis block until current last local one)
• Sync: timed out sync request recovery mechanism (retry the request on response unavailability)
• Sync: epoch blocks validation according to genesis block from next epoch
• Sync: blocks requested either from boot nodes or current active delegates
• Network: connection establishment is limited by time. On timeout attempt considered as failed

Checksums

File	Checksum (MD5)
open-chain-1.6.0.jar	7E12102AAFEC7F3314C664B98194147C
open-chain-1.6.0_installer-macos.dmg	27908E74E8004062F3A6F38ADC0471FD
open-chain-1.6.0_installer-unix.sh	5962774B79298A80906E990D3F4CEE24
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open-chain-1.6.0_portable-unix.tar.gz	1CCD7A248206011079F46DC7B0DFC237
open-chain-1.6.0_portable-windows-x64.zip	6ECAB469F2BC7C74ECFD862BFEE84A94

[1.5.0] - 2018-12-14

Added

• Smart contracts: contract basic executor

Changed

• Sync: time synchronization based on ntp servers
• Network: strict quantity of permanent connections
• Network: in case of failed connection attempt, node is not allowed to retry connect for an hour
• Network: node maintains minimum amount of connections, when there is a lack of them
• Smart contracts: contract variable class validation is supplemented

Checksums

File	Checksum (MD5)
open-chain-1.5.0.jar	CA8AFE2FC3E3417BCA14725AF66C8A41
open-chain-1.5.0_installer-macos.dmg	CF34CC0691D549227A7D5AABA87092F5
open-chain-1.5.0_installer-unix.sh	9B7FC1C675D96B0979A35FDEFCFD2441
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open-chain-1.5.0_portable-unix.tar.gz	AB93E00C035ADEA3AD2F7F85A5BFDB39
open-chain-1.5.0_portable-windows-x64.zip	84A12D352C60CB95FD00F2E16A7A247D

[1.4.0] - 2018-11-29

Added

• Smart contracts: loading of a contract to JVM
• Smart contracts: contract basic validation

Changed

• Core: at chain synchronization a chain of blocks is requested instead of last block
• Core: time synchronization is based on time-synchronized nodes

Checksums

File	Checksum (MD5)
open-chain-1.4.0.jar	CF7C3A68929977AA20B1257745BA51C8
open-chain-1.4.0_installer-macos.dmg	76DC48183A37713B0AC0EEF4C96ABC62
open-chain-1.4.0_installer-unix.sh	D22640D355D1D6AAFEF2669F93494605
open-chain-1.4.0_installer-windows-x64.exe	F07BD25215A9F4B9AC17E548E9270464
open-chain-1.4.0_portable-unix.tar.gz	3C081D155923D76DFF8EEFE870C9A0F7
open-chain-1.4.0_portable-windows-x64.zip	1F6A70A621BFAF5C7254291EEFC8FC25

[1.3.0] - 2018-11-16

Added

• Network: broadcast new client info over the entire network
• Network: filtering expired messages

Changed

• Network: removed heartbeat handler response
• RPC: Response pagination improved

Checksums

File	Checksum (MD5)
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open-chain-1.3.0_installer-macos.dmg	DA92516E8F7F7CDD6A369F13168C5F48
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open-chain-1.3.0_installer-windows-x64.exe	E259831A9C5A11F1F353AD8B751C77E7
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