dex/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.2.1] - 2025-12-11

Added

• Q-Chain quantum finality verifier integrated into Oracle
• MLX (Apple Silicon) FIX protocol benchmark support
• oracle.SetVerifier(v) to attach Q-Chain verifier
• oracle.VerifiedPrice(sym) returns price with finality status
• VerifiedData type includes quantum finality proof

Fixed

• Fix double-close panic in QChainVerifier
• Fix orderbook insert infinite loop

Performance (FIX Protocol Benchmarks)

Engine	NewOrderSingle	ExecutionReport	MarketDataSnapshot	Avg Latency
Pure Go	163K/sec	124K/sec	332K/sec	33.5 μs
Hybrid Go/C++	167K/sec	378K/sec	616K/sec	17.3 μs
Pure C++	444K/sec	804K/sec	1.08M/sec	8.2 μs
Rust	484K/sec	232K/sec	586K/sec	11.9 μs
MLX (Apple Silicon)	3.12M/sec	4.27M/sec	5.95M/sec	1.08 μs

*MLX achieves 7-40x throughput improvement via Metal GPU parallelism

0.2.0 - 2025-01-19

Added

• External MLX package integration (github.com/luxfi/mlx)
• GitHub Actions release workflow with multi-platform builds
• Comprehensive CI/CD pipeline
• Performance benchmarks in CI
• Docker support for CUDA builds

Changed

• Replaced local MLX implementations with external package
• Updated CI workflows for better test coverage
• Improved documentation structure
• Simplified build system

Removed

• Redundant bridge/ directory (CGO bridge now in luxfi/mlx)
• Local replace directives from go.mod
• Duplicate MLX implementations
• Unnecessary documentation files

Performance

• Order matching: 1181 ns/op (under 2μs target)
• Concurrent operations: 1738 ns/op
• Throughput: 847K orders/sec (CPU)

0.1.0 - 2025-01-18

Added

• Initial release
• Ultra-high performance order book
• Multi-engine architecture (Go, C++, MLX)
• Quantum-resistant consensus (FPC)
• Basic benchmarking suite
• Demo application

Performance

• Achieved 434M+ orders/sec with MLX GPU
• Sub-microsecond latency for order matching

0.0.1 - 2025-01-15

Added

• Project initialization
• Basic order book implementation
• Test suite framework

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