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BlockTrail PHP SDK Changelog

v3.0.0

  • New [Default] Wallet Version 3
    Better encryption scheme / key derivation.
  • Deprecated passing in primaryPrivateKey, should use primarySeed instead.

v2.1.0

  • Replaced bitcoin-lib-php with bitcoin-php.

v2.0.0

  • New [Default] Wallet Version 2
  • BackupGenerator now supports $extra to be printed on document for extra notes
  • No longer support BackupGenerator::generateImage

Upgrade / BC breaks

  • createNewWallet now returns list($wallet, $backupInfo) to be able to support both v1 and v2
  • new BackupGenerator() now takes $identifier, $backupInfo, $extra
  • No longer support BackupGenerator::generateImage
  • WalletSweeper has changed to remove some abstraction, also added insight-api implementation

New [Default] Wallet Version 2

Instead of using BIP39, wallet seeds will now be stored encrypted - to allow for password changes

Wallet Creation:

primarySeed = random()
secret = random()
primaryMnemonic = BIP39.entropyToMnemonic(AES.encrypt(primarySeed, secret))
secretMnemonic = BIP39.entropyToMnemonic(AES.encrypt(secret, password))

Wallet Init:

secret = BIP39.entropyToMnemonic(AES.decrypt(secretMnemonic, password))
primarySeed = BIP39.entropyToMnemonic(AES.decrypt(primaryMnemonic, secret))

See docs/KEYS.md for more info

Old Wallets that are v1 will remain so and will continue working.

v1.3.7

  • updated Guzzle to v5.3.1 to fix a php7.1 bug.

v1.3.6

  • Updated TransactionBuilder to be more customizable
  • add $wallet->getMaxSpendable
  • add fee strategies

v1.3.2

  • set DUST to 2730 satoshis, to reflect a 0.00005 BTC/kb relay fee, which many people still use to avoid spam.

v1.3.1

  • add Wallet::FEE_STRATEGY_LOW_PRIORITY which should give a 75% chance to get into the next 3 blocks.

v1.3.0

  • Floating Fees

Floating Fees

To deal with stresstests etc. there's now a feePerKB method to get the optimal fee and the $wallet->pay has a $feeStrategy argument.
When $feeStrategy is Wallet::FEE_STRATEGY_OPTIMAL (default) it will use the (by the API calculated) optimal fee per KB.
When $feeStrategy is Wallet::FEE_STRATEGY_BASE_FEE it will use the BASE_FEE of 0.0001 BTC per KB and use the old way of rounding the transaction size to 1 KB.

For using the TransactionBuilder use the $txBuilder->setFeeStrategy() if you don't want the default Wallet::FEE_STRATEGY_OPTIMAL.

Optimal fee is calculated by taking all transactions from the last 30 blocks and calculating what the lowest possible fee is that still gives more than 75% chance to end up in the next block.

v1.2.17

  • Add support to TransactionBuilder for OP_RETURN, see examples/op_return_payment_api_example.php

v1.2.16

  • Improved fee estimation

v1.2.15

  • Improved fee estimation

v1.2.14

  • add readOnly => true option to initWallet to use a wallet without requiring a password
  • add TransactionBuilder class to construct custom transactions
  • add forceFee to pay
  • allow different ways of specifying outputs for wallet->pay