Release V2.1.0

This release includes various bug fixes and some improvements.

Bug Fixes
- Varint encoding was broken. Fixed
- Minor interpreter fixes
- Proper handling of OP_CODE_SEPARATOR with Sighash pre-image calculation

New Features
- Added dedicated SigHash preImage generator the SigHash() class. This is useful for working with OP_PUSH_TX.

2.0.2

Bugfix: Bigint amount incorrecly encoded during sighash

• Fixes a bug in the buffer conversion to a bigintLE during sighash preimage calculation

2.0.1

Bugfix: Uint64 error when using with Flutter Web

• Removed the writeUint64 and readUint64 calls since dart2js can't natively represent 64bit int in JS.

1.1.3

BugFix: Uint64 conversion errors with Dart2JS / Flutter Web

• Removed all direct reading and writing of Uint64 types. Dart2JS can't handle the size.

2.0.0

• Removed uncessary FFI dependency

• Hardened path verification / validation

  • Added addtional regex check to the path validation string
  • Exposed ChildNumber class in the API

• Tightened up the fee calculations

  • Removed the hard requirement of a change output during txn validation
  • Removed the hard lower limit of 256 sats per transaction as a fee basis

• fixed decimal display of coins

• Solve/work-around for issue-54

  • Problem: When importing the lib into flutter and attempting to
    generate mnemonics, it fails with "Unsupported operation: Isolate.resolvePackageUri"
    FIX: Allow passing a function to the library to help resolve resources using
    Flutter AssetBundle APIs .

• Refactoring tests for clarity

• Dart SDK version minimum set to 2.17

2.0.0-RC2

• Large data Transaction fixes. There was a bug which prevented the crafting of
  large data transactions, i.e transactions with outputs that have PUSHDATA operations
  that pushed more than 65k bytes onto the stack.

Release 2.0.0-RC1

Version 2.x of the library is a major refactor and breaks backwards compatibility
with several previous library APIs.

• A new TransactionBuilder class for composing Transactions
• Removal of the old Builder interface which was directly attached to the Transaction class
• A complete re-implementation of the Script Interpreter
• The Sighash class now exposes the SigHash Pre-Image; useful when creating OP_PUSH_TX spending scripts.
• A new ScriptBuilder class to make it easy to create custom locking/unlocking scripts.
• Merged contributed code to have better Flutter Web support.

1.1.1

Useability improvements and contributor patches

• downgraded test dependencies to for Flutter compatibility
• Exposed the DUST LIMIT and default feePerKb settings on the Transaction so user can manually change these.
• Also exported the TransactionInput class
• Added a property on the Transaction class that exposes the SigHash Preimage after signing.
• Add missing padding for Wif Format
• Add Javascript target support for Flutter/Web
• added additional test coverage for signatures
• added typing and convenience methods to HD key management
• Removed the inline code example
• Dart Version bump to include the 3.x branch

1.0.1

Resolved Null-safety warnings on project build

• Building an example project threw up some warnings related to the
  PointyCastle ECPoint primitives and null-safety. I've made modifications to the library
  implementation to resolve these compiler warnings.

1.0.0

• Null-Safety Update
• All dependencies have been upgraded or replaced with null-safe equivalents.
• Minimum Dart version is now 2.12.2