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.

[0.2.0] - 2026-07-27

Added

• AllocateAligned(size, alignment) — per-allocation aligned sub-allocation (TLSF-style over-allocate)
• SyncAllocator.AllocateAligned — thread-safe aligned allocation wrapper
• GPU alignment support: Vulkan (256), DX12 (4–65536), Metal (64–256)
• Alignment=0 or 1 fast-paths to Allocate with zero overhead
• Non-power-of-2 alignment panics (programmer error, same as sync.Pool)
• Fuzz testing for aligned allocation (FuzzAllocAligned)
• Benchmarks for aligned allocation (~50ns/op, 0 allocs/op)

[0.1.0] - 2026-07-25

Added

• O(1) offset allocator (Allocator) with two-level bitfield bin lookup
• SmallFloat encoding (3-bit mantissa, 5-bit exponent) for 256 size classes
• Automatic neighbor coalescing on free via doubly-linked neighbor list
• Zero heap allocations on hot path — all node storage pre-allocated
• Thread-safe wrapper (SyncAllocator) with sync.Mutex
• StorageReport for free space introspection
• Reset to clear all allocations
• MinAllocatorSize helper for minimum allocator sizing
• Double-free detection via panic
• Comprehensive test suite (22 tests + fuzz testing)
• Benchmarks: ~40ns allocate, ~40ns free, 0 allocs/op
• Enterprise CI: 3 OS, lint, formatting, fuzz, Codecov OIDC