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CCXT.Simple v1.x Release History

Complete changelog for all v1.x releases of CCXT.Simple cryptocurrency trading library.

v1.1.13 - 2026-01-12

Major release featuring complete System.Text.Json migration, 5 new FULL exchange implementations, and significantly expanded test coverage.

System.Text.Json Migration

Completed

  • Full Migration: Complete migration from Newtonsoft.Json to System.Text.Json
  • JsonExtensions Class: New extension methods for safe JSON parsing
    • GetStringSafe() - Safe string extraction with property access support
    • GetDecimalSafe() - Handles numbers, strings, and scientific notation
    • GetInt64Safe() / GetInt32Safe() - Safe integer extraction
    • GetBooleanSafe() - Handles both boolean values and string representations
    • GetPropertyOrDefault() - Safe property access returning default on missing
    • HasProperty() - Check if property exists and is not null
    • EnumerateArraySafe() / EnumerateObjectSafe() - Safe enumeration

Fixed

  • GetStringSafe Overload Ambiguity: Fixed bug where Object types were mishandled
  • Number Type Handling: Added conversion for numeric types to strings
  • Boolean Type Handling: Added string conversion for True/False values

New FULL Exchange Implementations

BinanceUs (2026-01-12)

  • Full 16/16 standard methods implemented
  • Leveraged existing Binance code
  • HMAC-SHA256 authentication

Bitget (2026-01-12)

  • Full 16/16 standard methods implemented
  • Migrated to v2 API
  • HMAC-SHA256 + PassPhrase authentication

Huobi (2026-01-12)

  • Upgraded from PARTIAL to FULL
  • Full 16/16 standard methods implemented
  • HMAC-SHA256 authentication

Korbit (2026-01-12)

  • Upgraded from PARTIAL to FULL
  • Full 16/16 standard methods implemented
  • HMAC-SHA256 authentication

Kucoin (2026-01-12)

  • Upgraded from PARTIAL to FULL
  • Full 16/16 standard methods implemented
  • HMAC-SHA256 + PassPhrase authentication

Test Coverage Expansion

Added

  • JsonExtensionsTests: Comprehensive tests for all JsonExtensions methods
  • TimeExtensionsTests: Tests for time conversion utilities
  • StringExtensionsTests: Tests for string manipulation helpers
  • ExchangeConstructorTests: Tests for all 14 FULL exchange constructors
  • ModelSerializationTests: Tests for model serialization/deserialization

Statistics

  • Total Tests: 452 (up from 90)
  • Line Coverage: 8.79% (2,113 / 24,015 lines)
  • Branch Coverage: 6.38% (439 / 6,878 branches)

Summary Statistics

  • FULL Implementations: 14 (was 9)
  • PARTIAL Implementations: 0 (was 3)
  • SKELETON Implementations: 96 (was 98)
  • Total Exchanges: 110

v1.1.11 - 2025-12-01

Major release featuring Upbit exchange API fixes, improved NuGet publishing script, and documentation updates.

Upbit Exchange Improvements

Fixed

  • JWT Authentication - Implemented SHA512 query hash for API authentication (required since March 2022)
    • Added CreateTokenWithQueryHash() method for proper JWT token generation
    • All authenticated endpoints now use query_hash and query_hash_alg in JWT payload
  • POST Request Format - Changed from FormUrlEncoded to JSON body format
    • Updated PlaceOrder(), CancelOrder(), and Withdraw() methods
  • Order Endpoints - Updated to use new API endpoints
    • GetOpenOrders() now uses /v1/orders/open instead of deprecated /v1/orders
    • GetOrderHistory() now uses /v1/orders/closed for completed orders
  • .NET Standard 2.0/2.1 Compatibility - Fixed SHA512.HashData usage
    • Changed from SHA512.HashData() to SHA512.Create().ComputeHash() pattern
  • UOrderbook Typo - Renamed UOrderboook to UOrderbook

Added

  • GetOrderChance API - New method for fee rates and minimum order amounts
    • Endpoint: GET /v1/orders/chance?market={market}
    • Returns taker/maker fee rates, order constraints, and account balances
    • New model classes: OrderChance, OrderChanceMarket, OrderChanceConstraint, OrderChanceAccount
  • XML Documentation - Comprehensive comments for all Upbit model classes
  • CoinInfor Model Updates - Added market_event field and related classes

Scripts

  • publish-nuget.ps1 - Enhanced with symbol package support, version display, fixed function name conflicts

v1.1.10 - 2025-08-14

Added

  • Bithumb Exchange (Full Implementation): Complete implementation of all 16 standard API methods
    • Location: src/exchanges/kr/bithumb/
    • API Version: Bithumb API v2.1.0 with JWT authentication
  • Kraken Exchange (Full Implementation): Complete implementation of all 16 standard API methods
    • Location: src/exchanges/us/kraken/
    • API Version: Kraken REST API v0
  • Binance Exchange (Full Implementation): Complete implementation of all 16 standard API methods
    • Location: src/exchanges/us/binance/
    • API Version: Binance REST API v3
  • Upbit Exchange (Full Implementation): Complete implementation of all 16 standard API methods
    • Location: src/exchanges/kr/upbit/
    • API Version: Upbit REST API v1 with JWT authentication

Changed

  • Total fully functional exchanges: 4 -> 8 (100% increase)
  • Enhanced JWT authentication support for Korean exchanges (Bithumb, Upbit)

v1.1.8 - 2025-08-10

Added

  • Bitstamp Exchange (Partial): Initial implementation (Market data + subset of standardized API)
    • Implemented: Orderbook, Price, Candles, Trades
    • Location: src/exchanges/gb/bitstamp/

Notes

  • Bitstamp classified as "Partial Implementation (In Progress)"

v1.1.7 - 2025-08-08

Changed

  • Breaking: Removed netstandard2.1 support - now targets .NET 8.0 and .NET 9.0 only
  • Replaced System.Net.Http.Json dependency with Newtonsoft.Json
  • Translated all Korean comments to English
  • Standardized all folder names to lowercase convention
  • Renamed extension classes: DateTimeXts → TimeExtensions, StringXts → StringExtensions
  • Removed WebSocket-related code (REST API focus)

Fixed

  • Fixed CoinState.json file path issue in Bithumb exchange
  • Fixed build errors related to global using directives
  • Fixed XCrypto.cs PostAsJsonAsync compatibility issue

Added

  • GlobalUsings.cs file for centralized namespace imports
  • Improved test coverage with all 73 tests passing

v1.1.6 - 2025-01-08

Added

  • 97 New Exchange Skeletons: Total exchange support increased from 14 to 111 exchanges
  • Kraken Exchange: Complete implementation with all standard API methods
  • Unified Test Project: Consolidated all exchange tests into CCXT.Simple.Tests
  • Unified Samples Project: Consolidated all samples into CCXT.Simple.Samples

New Exchange Categories

  • Binance Ecosystem (3): BinanceCoinm, BinanceUs, BinanceUsdm
  • Major International (22): Alpaca, Apex, Ascendex, Bequant, Bigone, Bingx, etc.
  • Derivatives & DeFi (7): Defx, Delta, Deribit, Derive, Hyperliquid, Paradex, Vertex
  • Regional (15): Japanese, European, Turkish, Brazilian, Indonesian exchanges

Complete API Standardization

  • Extended IExchange with 15 new standardized API functions
  • New Standardized API Functions:
    • Market Data: GetOrderbook, GetCandles, GetTrades
    • Account: GetBalance, GetAccount
    • Trading: PlaceOrder, CancelOrder, GetOrder, GetOpenOrders, GetOrderHistory, GetTradeHistory
    • Funding: GetDepositAddress, Withdraw, GetDepositHistory, GetWithdrawalHistory

Framework Updates

  • Upgraded to .NET 9.0
  • Added HttpClientService for efficient connection management

v1.1.5 - 2024-11-XX

Changed

  • Framework Update: Upgraded from .NET 7.0 to .NET 8.0
  • Updated to C# 12.0 features
  • Updated all NuGet packages to latest compatible versions

Fixed

  • Various bug fixes and performance improvements
  • Enhanced error handling across exchange implementations
  • Improved thread safety in concurrent operations

v1.1.4 - 2024-XX-XX

Added

  • Initial support for Bittrex exchange

Changed

  • Improved rate limiting logic across all exchanges
  • Optimized concurrent data management

Fixed

  • Fixed memory leaks in long-running connections
  • Resolved thread safety issues in ticker updates

v1.1.0 - 2024-XX-XX

Added

  • Support for 14 cryptocurrency exchanges
  • Unified IExchange interface
  • Thread-safe concurrent collections
  • Event-driven architecture with price events

Features

  • Market data retrieval (tickers, order books, volumes)
  • Symbol verification and state management
  • Multi-currency support (KRW, USD, USDT, BTC)
  • Built-in rate limiting per exchange

v1.0.0 - 2023-XX-XX

Initial Release

  • Core framework implementation
  • Basic exchange support for major Korean exchanges (Bithumb, Upbit, Coinone, Korbit)
  • Simple API for ticker and market data retrieval
  • .NET 7.0 target framework
  • Basic authentication and rate limiting