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@@ -34,19 +34,134 @@ Also, consider a donation at PascalCoin development account: "0-10"
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## History:
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-### Build 1.5.6.0 - 2017-05-03
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-- Allow multiselect accounts (GUI wallet)
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-- Priority for operations with fee:
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- - Allow miner server (pools) to select what to mine using pascalcoin_daemon.ini file (daemon only)
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- - RPC_SERVERMINER_MAX_OPERATIONS_PER_BLOCK: Max of operations that can be included in a block (Default 5000, min value 1000)
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- - RPC_SERVERMINER_MAX_ZERO_FEE_OPERATIONS: Max of operations with 0 fee that can be included in a block (Default 2000, min value 400)
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- - Operations with fee have always preference over 0 fee operations (will be mined first)
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- - If operations with fee fills all the buffer, then no zero fee operation will be included
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-- Fixed bug on receiving big blocks and slow net connection to prevent never synchronize
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-- Fixed bug on miner server that produces "invalid operations hash" error on valid solutions with 0 operations
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-- Fixed bug on file storage
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-- Fixed minor bugs
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-
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+### Build 2.0.0.0 - 2017-06-23
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+- MANDATORY UPGRADE - HARD FORK ACTIVATION WILL OCCUR ON BLOCK 115000
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+- Introducing Protocol v2.
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+ - https://github.com/PascalCoin/PascalCoin/blob/master/PascalCoinWhitePaperV2.pdf
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+ - Core Changes:
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+ - New safebox hash calculation algorithm to allow safebox checkpointing
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+ - Improved difficulty target calculation to obtain a more stable average blocktime of 5 minutes, given abrupt hashpower fluctuations
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+ - Bug-fix for China region users
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+ - Anti-spam measures
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+ - New Consensus Rule: A block can only contain 1 zero fee operation per sender account. If a sender account issues 2 or more zero-fee operations, that block is invalid.
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+ - SafeBox now stored in chunks to facilitate checkpoint distribution
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+ - Reintroduce orphan blocks operations on main blockchain
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+
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+ - Added Checkpointing:
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+ - Checkpoint created on every 100'th block
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+ - Added network operations to transfer Checkpoint chunks (compressed)
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+
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+ - Addded In-Protocol PASA Exchanging:
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+ - New Operation: List Account, used to list an account for public or private sale
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+ - New Operation: Delist Account, used to delist an account from sale
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+ - New Operation: Buy Account, used to purchase an account lised for sale
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+ - Updated Operation: Transaction, can be used in place of Buy Account operation in private account sales
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+
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+ - RPC API Changes:
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+ - All changes are backwards-compatible for current 3rd-party infrastructure providers (exchanges, wallets).
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+ - However, use of param "ophash" has been changed in V2, see "Operation Object changes" section to know how to use "old_ophash" param value
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+ - JSON changes:
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+ - Account Object changes:
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+ - Added param "state" (values can be "normal" or "listed". When listed then account is for sale)
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+ - If "state" is "listed" then will fill next values:
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+ - "locked_until_block", "price", "seller_account"
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+ - "private_sale" : Boolean value
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+ - "new_enc_pubkey" : (Only on "private_sale" = true) - HEXASTRING with private sale encoded public key
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+ - Added param "name": String
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+ - Name available chars: abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()-+{}[]\_:"|<>,.?/~
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+ - Name first char: (cannot start with number): abcdefghijklmnopqrstuvwxyz!@#$%^&*()-+{}[]\_:"|<>,.?/~
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+ - Name lenght: Empty or 3..64 chars length
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+ - Added param "type": Integer (Valid values from 0..65535)
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+
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+ - Operation Object changes:
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+ - Changed param "ophash": Current returned value of "ophash" is not the same than previous builds (changed calculation method)
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+ - New param "old_ophash": Will return previous "ophash" value only for old blocks (prior to v2 protocol activation)
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+ - New param "subtype" : Based on "optype" param, this param allows to discrimine point of view of operation (sender/receiver/buyer/seller ...)
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+ - New param "signer_account" : Will return the account that signed (and payed fee) for this operation
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+ - Param "enc_pubkey": Will return both change key and the private sale public key value
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+ - About method "findoperation" and "ophash"
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+ - Due to changed "ophash" param value calculation, method "findoperation" will find old "ophash" values too
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+ - This is to avoid 100% compatibility, but remember that returned "Operation object" will contain "ophash" value calculated in new format only (you can read "old_ophash" value in older blocks)
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+ - New methods:
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+ - "listaccountforsale" : Lists an account for sale (public or private)
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+ - Params:
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+ - "account_target" : Account to be listed
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+ - "account_signer" : Account that signs and pays the fee (must have same public key that listed account, or be the same)
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+ - "price": price account can be purchased for
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+ - "seller_account" : Account that will receive "price" amount on sell
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+ - "new_b58_pubkey"/"new_enc_pubkey": If used, then will be a private sale
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+ - "locked_until_block" : Block number until this account will be locked (a locked account cannot execute operations while locked)
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+ - "fee","payload","payload_method","pwd"
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+ - "signlistaccountforsale" : Signs a List an account for sale (public or private) for cold wallets
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+ - Params: Same "listaccountforsale" params, and also:
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+ - "rawoperations" : HEXASTRING with previous signed operations (optional)
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+ - "signer_b58_pubkey"/"signer_enc_pubkey" : The current public key of "account_signer"
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+ - "last_n_operation" : The current n_operation of signer account
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+
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+ - "delistaccountforsale" : Delist an account for sale
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+ - Params:
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+ - "account_target" : Account to be delisted
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+ - "account_signer" : Account that signs and pays the fee (must have same public key that delisted account, or be the same)
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+ - "fee","payload","payload_method","pwd"
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+ - "signdelistaccountforsale" : Signs a List an account for sale (public or private) for cold wallets
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+ - Params: Same "delistaccountforsale" params, and also:
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+ - "rawoperations" : HEXASTRING with previous signed operations (optional)
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+ - "signer_b58_pubkey"/"signer_enc_pubkey" : The current public key of "account_signer"
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+ - "last_n_operation" : The current n_operation of signer account
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+
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+ - "buyaccount" : Buy an account previously listed for sale (public or private)
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+ - Params:
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+ - "buyer_account","account_to_purchase",
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+ - "price","seller_account",
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+ - "new_b58_pubkey"/"new_enc_pubkey","amount",
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+ - "fee","payload","payload_method","pwd"
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+ - "signbuyaccount" : Signs a buy operation for cold wallets
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+ - Params: Same "buyaccount" params, and also:
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+ - "rawoperations" : HEXASTRING with previous signed operations (optional)
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+ - "signer_b58_pubkey"/"signer_enc_pubkey" : The current public key of "buyer_account"
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+ - "last_n_operation" : The current n_operation of buyer account
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+
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+ - "changeaccountinfo" : Changes an account Public key, or name, or type value (at least 1 on 3)
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+ - Params:
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+ - "account_target" : Account to be delisted
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+ - "account_signer" : Account that signs and pays the fee (must have same public key that target account, or be the same)
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+ - "new_b58_pubkey"/"new_enc_pubkey": If used, then will change the target account public key
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+ - "new_name": If used, then will change the target account name
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+ - "new_type": If used, then will change the target account type
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+ - "fee","payload","payload_method","pwd"
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+ - "signchangeaccountinfo" : Signs a change account info for cold cold wallets
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+ - Params: Same "changeaccountinfo" params, and also:
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+ - "rawoperations" : HEXASTRING with previous signed operations (optional)
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+ - "signer_b58_pubkey"/"signer_enc_pubkey" : The current public key of "account_signer"
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+ - "last_n_operation" : The current n_operation of signer account
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+
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+ - "findaccounts" : Find accounts by name/type and returns them as an array of Account objects
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+ - Returned array will be sorted by account number
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+ - Params:
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+ - "name" : (String) If has value, will return the account that match name
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+ - "type" : (Integer) If has value, will return accounts with same type
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+ - "start" : (Integer) Start account (by default, 0)
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+ - "max" : (Integer) Max of accounts returned in array (by default, 100)
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+
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+
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+ - Updated methods:
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+ - "changekey" : Added param "account_signer" that allow to pay fee using another account with same public key than target "account" param. This allows to change keys on empty accounts (balance = 0) and pay fee
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+ - "signchangekey" : Added param "account_signer", same use that in "changekey" method
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+
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+ - GUI changes: (not available on daemon)
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+ - New columns "name" and "type" on accounts
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+ - Information about Accounts/Operation using F1
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+ - Operations form now accepts: (Will be active after V2 protocol activation)
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+ - List account for sale (public or private)
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+ - Delist account
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+ - Buy account
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+ - Change account name/type
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+ - Operations form allows to search for accounts using F2 over an account edit box
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+ - Changes in text showing operations information
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+
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+- Other changes:
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+ - Bug for china users fixed
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+ - Bugs fixed
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### Build 1.5.5.0 - 2017-04-11
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- Corrected fee result on RPC calls as a negative number on "Change key" operations
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PascalCoin