Releases

Critical dependencies:

• updated C++ standard to C++17
• moving subdependencies to separated repositories as submodules
• up to date EVM module

Extended:

• added Docker support
• added arith_uint256 to the project
• added core hash functions
• using secp256k1 schnorr in signature processing
• added important integrational logic for zerocoin
• added indexers for spent/unspent amount and for block height
• added leasing transaction ownership verification
• added logevents and addrindex flags and functionality
• added signature cache
• added new OP_CODEs for script processing
• added new base flags for script processing
• added support for contract abi
• added transliteration of base58 to evm-typed hexes
• added ulr20 implementation of the token
• implemented important logic in qtumstate manager

RPC calls:

• added new rpc method to create masternode
• added rpc methods for: 
  • get hex address
  • from hex address
  • get transaction receipt
  • call contract
  • decode raw transaction
  • search logs
  • wait for logs
  • get block hash
  • generate to address
  • get storage
  • sign raw transaction with wallet
  • get staking info
  • get address balance
  • get address utxos
  • create wallet
  • load wallet
• added statuses for new rpc methods

Improved:

• better QTUM engine integration
• improved mempool and main.cpp interaction
• improved refund mechanism on revert state
• improved serialization for type and version of the block
• improved validators voting mechanism
• optimization for CMake process
• optimized addresses encoding and decoding
• optimized cmake for cryptopp

• reworked rpc methods for validators
• reworked sigcache and signing mechanics
• reworked transaction primitive
• reworked urlstringencoding
• slightly reworked pblocktree and pstorageresult

• completelty removed CULR library
• removed CULR library dependency
• removed old ethash and cpp-ethereum lib
• removed rudimentary autoreconf files
• removed unnecessary sudo prefixes in ubuntu installation script
• removed unnesessary checks in main.cpp
• removed unnesessary validation for masternode
• removed unused checkpoints
• removed unused screen in GUI

Updated:

• updated basic base58 functions
• updated call contract rpc method
• updated encoding and decoding methods for signature
• updated interpreter logic
• updated keystore methods
• updated pubkey calculation algorithm
• updated rpc generate method and fixed its params validation
• updated serialization methods
• updated singature bites and prefixes in chainparams
• updated tests
• updated univalue
• switching keys algorithm to internal PKHash

Fixed:

• static build for MacOS fixed + added support for last OS version
• corrected testnet ports definitions
• fixed byte ambiguity for msvc
• fixed config.sub
• fixed few missed cases in create contract logic
• fixed incorrect market cap in the code
• fixed incorrect marketcap calculations
• fixed reward in leasing tx verification
• fixed transaction verification mechanism
• updated wallet logic (added missed rewards, missed tool methods and optimizations)

Other:

• fixed a few incorrect links in the project
• fixed amount of incorrect translations
• updated installation/building instructions

Implemented Core Blockchain (Layer 1) functions:

• Connection to nodes
• Getting blockchain information
• Operate Transaction inside (Send/Recieve/See)
• Transaction Statuses
• Transaction Validation
• Wallet addressing
• Masternodes

etc.

Implemented GUI forms

• Main page
• Send form
• Address managment forms
• Masternodes forms
• Settings and misc

Implemented Smart Contracts logic

• Publish the smart contract
• Initiate smart contract execution