- Lots of code improvements, bug fixes, additional debug verification, code cleanup, optimization and tests in ECC
- Some more methods are marked obsolete that will be removed in future releases
- RFC-6979 is changed to allow reusing to generate consecutive nonce generation (upto 40% faster)
- Some improvements in Scalar8x32 implementation with new methods
- Add a new Inverse method
- Two new extensions: IsCJK and ToDataSize
- Electrum mnemonic can now verify if the given words are old mnemonic and will reject it and valid BIP-39 ones
- Small code improvements and some benchmarks
- Old ECC is now obsolete
- SHA1, SHA512 and Murmur3 are now all static classes
- BIP-32 and BIP-85 both use the new ECC now
- Small cleanup
- Replace old ECC with the new implementation
- Disabled BIP-137
- Small code improvement and bug fixes
- Improve ECC implementation
- Add a new signature class and a DSA class
- Various tests and small bug fixes and code improvements
- Introduce a new
LightDatabaseto be used inTransactionVerifierand as mock DB - Fix some issues with database, hash collision and handling duplicate transactions
- Start adding a new and optimized implementation of ECC with the help of libsecp256k1 project
- Some new tests and small code improvements
- Add BIP-30
- Introduce
Digest256an immutable struct to store 256-bit hashes - Breaking change:
BlockHeaderis now an immutable struct Digest256is used anywhere there is a hash
- Some breaking changes in
(I)Chain,(I)BlockVerifier,(I)NodeStatusand(I)FullClientSettings - Fixed many issues during initial block sync
- Various tests, bug fixes and code improvements
- (From now on
Bitcoin.NetandDenovoare published together) - New decryption mode added to
BIP0038for EC mult mode - New size related methods and properties added to
(I)Blockand(I)Transaction - [BreakingChange]
(I)Blockchainis renamed to(I)Chain - [BreakingChange] All error messages (such as those returned from
Try*()methods) return an enum instead of string. The enum has an extention method calledConvert()that can be used to easily convert it to a friendly string. - Improved tests and converage, improved XML doc, small code optimization and added some new benchmarks
- Added
MinimalClient - All clients are now in a new namespace
- Add a new method to
PublicKeyandAddressclasses to handle Taproot keys - Small improvements
BufferManagerclass is removed(I)Witnessis changed to usebyte[]s instead ofPushDataOp(ie. to be stack items)- Taproot activation height for TestNet and RegTest were added
- Add new IOperations for CheckSig ops in Taproot scripts
TransactionVerifieris improved to be able to verify all Taproot transactions- Various bug fixes, improvements and some additional tests
- All hash algorithms and KDFs are now accepting Span
- Blocks received from each node is now stored in that node's
NodeStatusand processed all at once BufferManagerclass is now obsolete (will be removed in 0.16)- Fixed a bug in
FullClientwhere incorrect in queue peer count could cause a big connection backlog - TransactionVerifier will now return better error messages
- New
IOperationadded forOP_SUCCESS - Added script verification rules for tapscript leaf version 0xc0
- Multiple important bug fixes, some small code improvements and some tests
- Address and script classes are updated for Taproot
- Address class is more strict about Bech32 addresses
- Add a new address type (P2TR)
- Creating P2WPKH and P2WSH no longer requires a witness version (it is always 0)
- Introduce script evaluation modes
- Taproot activation height is added to
Consensus - Small improvements in
TransactionVerifier - Various tests, small bug fixes and code improvements
- Implement Taproot with BIPs: 340, 341 and 342 (untested). That includes new PubkeyScript, signature, script evaluation, sig hash, SigHash type, public key (x-only) and updated Schnorr signature algorithm.
- Note: Taproot is disabled by default in Consensus class, it will be enabled after it is locked-in and will be tested to find possible bugs
- New OP code:
OP_CheckSigAdd - Many new optimized Tagged hash methods in
Sha256 IBlockandITransactionhave better size properties that utilizeSizeCounterbetter- Added some consensus critical checks to BlockVerifier
- Improve FullClient, NodePool and Blockchain in handling initial connection and synchronization
- Various tests, code improvements, optimization and bug fixes
- Add new
SizeCounterclass used byIDeserializableobjects to compute the size of the object without serializing it first FastStreamclass is now using the same initial capacity instead of increasing small ones toDefaultCapacity- New Experimental idea: Better mnemonic
- New BIPs: 44 and 49 (BIP-32 related derivation paths and version bytes used in Base58 encoding)
Transactionclass is modified to store size and hash and allow manual update- Various tests, some small code improvements, bug fixes and optimization
- New BIP: Bech32m format for v1+ witness addresses (BIP-350)
- All encoders are static now and have a
TryDecodemethod - Validity check by encoders is 2 methods now:
IsValid(checks characters) andIsValidWithChecksum(checks both) unless the encoding doesn't have encode without checksum like Bech32 IHashFunctionis removedIsDoubleis removed- Almost every class in Cryptography namespace is sealed now
- Various improvements, additional tests, bug fixes and small XML doc fixes
- Implemented initial block synchronization code in
Blockchainand respective classes IUtxoDatabaseandIFileManagerhave new methods- Add a new UTXO class
- Mandatory ClientSettings properties are read only and can only be set in its constructor, the rest can be set using the respective property setter
- To reduce memory usage some properties are placed in ClientSettings and are accessed from all threads (by different node instances)
- RandomNonceGenerator is thread safe now
- (I)Storage is entirely removed
- Hash and HMAC functions are all
sealed IHashFunctionand itsIsDoubleproperty are obsolete and will be removed in next release. Use the newComputeHashTwicemethod instead- Various bug fixes, tests and improvements
- Major changes in P2PNetwork namespace involving initial connection
- Introduce
ClientTimeto get/set client time using other peers - Block headers now store their hash locally with an option to recalculate hash
- Fix some issues in
Nodeclass when it got disconnected - Fix some issues in
NodePoolclass with locks - Introduce
BlockchainStateand respective events to be raised when it changes - Peers are selected based on
BlockchainStateand their service flags, all handled byClientSettings - Introduce a new timer for each peer to disconnect them when they are not responding to requests (this is important when syncing)
- Improve the initial handshake to send "settings" messages based on protocol version of the peer
- Add some new constants
- Various optimization, tests and small improvements
- Improvments mainly in
ReplyManagerandBlockchainfor handling communication and header verification - Target stuct is improved to handle edge cases in compliance with consensus rules
- IConsensus has a couple of new properties and methods
- Multiple new Constants are added
- NodeStatus properties are pure properties and new method is used to signal disconnect instead
- Block headers are now processed directly through IBlockchain instead of IClientSettings
- Client can now store and report its own IP address after receiving Version messages
- Client is now capable of downloading, verifying and storing the entire block headers
- Client's communication is based on INode's protocol version
- Added a new word list: Portuguese (affects BIP-39, ElectrumMnemonic but not defined for BIP85)
- Various bug fixes, tests and some improvements
- Introduce FullClient
- Add an implementation of
IBlockchain - Add NodePool (a thread safe observable collection of
Nodes) - Introduce
IFileManager(planning to remove IStorage entirely) - Add ECIES, new methods to encrypt and decrypt messages with Elliptic Curve Integrated Encryption Scheme
- String normalization method used by Electrum mnemonic is now
public static - IConsensus instance can now build genesis blocks
- Some additional node violation cases
- Some improvements in
ReplyManager - Various code improvements, optimization, bug fixes and some tests
- BIP-14: you can now set how many version components to return in ToString() method
- Block headers is a separate class now
- Multiple improvements in P2PNetwork for handling messages, violations, etc.
- ReplyManger will send the correct IP and port in version message now.
- Some optimization, bug fixes and tests
- Lots of improvements in P2P protocol for handling different messages
- Added new payload types enum
- IClientSettings now contains everything that needs handling by nodes
- Introduction of IStorage
- Big refactor of IConsensus usage
- Miner class now supports concurrency (caller can set the number of cores used for maximum efficiency)
- Addition of a new method in
RandomNonceGenerator - Various code improvements, optimization, bug fixes and some tests
- BIP-39 can now measure Levenshtein distance for any word-list
- Small bug fix in transaction class
- NodeStatus is improved to be a better representative of the status of the connected nodes
- General code improvement and bug fixes in
P2PNetworknamespace
- Rewrite of the
TransactionVerifierwith major improvements and optimization. It now uses the full potential of the powerful implementation of Bitcoin scripts in Bitcoin.Net which improves the efficiency of the transaction verification process. - Some fixes in custom value types such as
CompactIntcomparison operators. - Add new script special types to both
PubkeyScriptandRedeemScript - Some improvements in
P2PNetworknamespace focusing onMessageManagerandReplyManger - Various code improvements, bug fixes and additional tests
- Improvements in P2PNetwork namespace (Each node now uses only 2 SAEA that are taken from a pool instantiated in IClientSettings, other improvements in ReplyManager and MessageManager)
- New BIP: Deterministic Entropy From BIP32 Keychains (used in Coldcard) (BIP-85)
- New RNG for nonce generation
- Add a new word-list to BIP-39 (Czech)
- Some bug fixes and code improvements in
TransactionVerifier - Additional tests
- Improvements in P2PNetwork namespace (separate listen and connect operations, decouple more classes, introduce new dependencies:
ClientSettingsandNodeStatus, some bug fixes) - Small optimization in some of the classes in
Cryptography.Hashingnamespace - New BIP: Electrum mnemonics
- Improvements in P2PNetwork namespace
- New BIP: Compact Block Relay: SendCmpct, CmpctBlock, GetBlockTxn (BIP-152)
- New hash algorithm: SipHash
- Add a miner with limited functionality to add the option to mine a block if needed (will be improved in the future)
- BIP-39 now lets caller get the entire 2048 words from its wordlists
- Various code improvements and additional tests
- New BIP: Signatures of Messages using Private Keys (BIP-137)
- Improve Address and FastStream classes
- Add missing parts in transaction methods for signing
- Some improvements and bug fixes in script classes
- Various code improvements, xml doc correction, additional tests and some bug fixes
- New BIP: Passphrase protected private key (BIP-38)
- New hash algorithm: Murmur3
- Improve Address and Signature classes
- Various code improvements and additional tests
Initial release