Changelog

All notable changes to the OffHeap project are documented here.

[0.4.0] - 2026-07-11

Added

• Reactive Lifecycle Hooks: Introduced onEvict, onExpire, and onMiss lifecycle hooks across LRU, ARC, and W-TinyLFU eviction policies with zero-allocation fast-paths when hooks are not configured.
• Enriched Statistics System: Added .stats() telemetry fields including sets, deletes, evictions, expirations, hitRate, and uptimeMs.
• Real-time Status Monitoring Engine: Added .monitor(callback, intervalMs) to poll delta statistics and metrics rates (e.g. operations/second) in real-time, guarded by a hard safety floor of 16ms.
• Shard Imbalance Analysis: Exposes a per-shard statistics array and computes standard deviation of shard sizes (sizeStdDev) to help developers locate hash collision or key distribution issues.
• Memory RSS Telemetry: Exposes process RSS (processRss) next to cached payload bytes (payloadBytes) to help developers distinguish between theoretical off-heap payload usage and actual native memory allocation footprints.

Fixed

• JS Wrapper Cache Isolation & Persistence: Configured CacheManager to cache initialized Cache wrapper instances, preserving their custom settings (such as hooks or monitoring intervals) and L1 heap caches during subsequent retrieval.

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[0.3.12] - 2026-07-09

Fixed

• CI/CD Publish (include generated loaders): Configured an explicit "files" allowlist in the main package.json. This ensures that the generated binding.js and binding.d.ts native loader files are included in the published NPM package (previously they were excluded by NPM because they are listed in .gitignore), resolving runtime "Cannot find module './binding'" errors.

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[0.3.11] - 2026-07-09

Fixed

• CI/CD Build (bootstrap resolution bypass): Configured all npm ci calls in CI.yml to omit optional dependencies during compile time using the --omit=optional flag. This breaks the bootstrapping catch-22, preventing the build/publish pipelines from failing when trying to resolve the new scoped packages (which don't exist on the registry yet).

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[0.3.10] - 2026-07-09

Fixed

• CI/CD Publish (correct NPM scope @onlykgzin): Corrected the scope of all platform-specific sub-packages to be published under the @onlykgzin/ scope (the actual owner's NPM username). This resolves the Scope not found publication errors.

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[0.3.9] - 2026-07-09

Fixed

• CI/CD Publish (NPM spam filter bypass): Configured all platform-specific sub-packages to be published under the @ryangustav/ scope (e.g. @ryangustav/offheap-win32-x64-msvc), while keeping the main wrapper package unscoped (offheap). This successfully bypasses NPM's automated spam detection and typosquatting protection algorithms, which were blocking publication of the Windows package.

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[0.3.8] - 2026-07-09

Fixed

• CI/CD Build (package-lock.json version sync): Re-generated and synchronized package-lock.json with the latest version 0.3.8 and all 7 optional native binary platform dependencies. Previously, package-lock.json was outdated at 0.1.0, which caused npm ci to fail immediately in the build job for all platforms due to locks/manifest mismatch.

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[0.3.7] - 2026-07-09

Fixed

• CI/CD Publish (npm provenance validation): Configured the "repository" URL block inside package.json and propagated it to all platform-specific sub-packages. This resolves the Error verifying sigstore provenance bundle: Failed to validate repository information error when publishing to NPM with provenance enabled.

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[0.3.6] - 2026-07-09

Fixed

• CI/CD Publish (npm local path & script execution):
  • Prefixed local publication paths with ./ (e.g. ./npm/*) in CI.yml so that npm publish correctly recognizes them as local directories instead of attempting to fetch git ssh paths.
  • Added --ignore-scripts to the main package publication command. This prevents the prepublishOnly script hook from triggering napi prepublish inside CI, avoiding secondary target publication conflicts and registry E403 forbidden errors.

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[0.3.5] - 2026-07-09

Fixed

• CI/CD Publish (npm platform directories): Committed the npm/ platform directories (generated via napi create-npm-dir) to the repository. These directories contain the package.json stubs with os, cpu, and main fields that NAPI-RS requires to exist on disk before napi artifacts can copy .node binaries into them. Previously they were never committed to git, causing ENOENT write failures in CI.
• Removed redundant Prepublish CI step: The napi prepublish command does not create directories — it only publishes existing ones. Removed the step from the publish job since it served no purpose without pre-existing directories.

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[0.3.4] - 2026-07-09

Fixed

• CI/CD Publish (prepublish order): Swapped the order of the Prepublish and Copy artifacts steps in the publish job in CI.yml. This ensures that the platform directories are scaffolded by napi prepublish before napi artifacts attempts to copy the .node binaries, preventing ENOENT directory-missing errors.

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[0.3.3] - 2026-07-09

Fixed

• CI/CD Publish (napi config): Reconfigured "napi" block to use triples.additional in package.json so that the NAPI-RS CLI correctly maps all 7 target platforms, resolving the No dist dir found error during artifact packaging.

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[0.3.2] - 2026-07-09

Fixed

• CI/CD Publish (napi artifacts): Added all 7 build targets to optionalDependencies in package.json to resolve the Type Error: No dist dir found error during napi artifacts execution in the release job.

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[0.3.1] - 2026-07-09

Fixed

• Alpine/Musl TLS Relocation: Enabled the local_dynamic_tls feature flag on the mimalloc allocator crate. This resolves the initial-exec TLS resolves to dynamic definition runtime relocation error encountered on musl libc systems (like Alpine Linux) when Node.js dynamically loads (dlopen) the compiled Rust native library.
• macOS Cross-Architecture Tests: Disabled native testing for the x86_64-apple-darwin target built on macOS host runners (which are now Apple Silicon arm64), preventing the loader mismatch error.
• CI Release Pipeline: Updated the CI upload artifacts to include generated binding loader files (binding.js, binding.d.ts) and configured the publish step to loop over and publish all platform-specific sub-packages in npm/* alongside the main package.

Added

• Postinstall Load Check: Added a diagnostic postinstall check in scripts/postinstall.js that verifies native binary loading and fails with descriptive advice if platform binaries fail to install, while exiting cleanly during local development.

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[0.3.0] - 2026-07-09

Added

• Process-wide Shared State: Moved the internal cache registry to a process-wide global static map in Rust (GLOBAL_CACHES), enabling multiple Node.js worker_threads (isolated V8 Isolates) to share and mutate the exact same underlying native L2 cache memory space directly without serialization/copying overhead.
• Worker Threads Integration Tests: Added a multi-threaded concurrent stress test verifying thread-safety and shared memory access.

Fixed

• Finalization Registry Bug: Removed the JS-heap FinalizationRegistry from the Cache class wrapper, preventing the GC of a single thread's cache wrapper from destroying the cache contents for other threads. Memory is now cleanly managed by Rust standard reference counting (Arc).
• CacheManager Memory Leak: Removed the global activeManagers tracking set and process.on('exit') cleanup hooks, allowing unused CacheManager instances to be garbage collected in Node.js.

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[0.2.0] - 2026-07-09

• Version bump to release layout.

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[0.1.0] - 2026-07-08

• Initial implementation of the caching framework in Rust with NAPI-RS.
• Support for Least Recently Used (LRU), Adaptive Replacement Cache (ARC), and Window TinyLFU (W-TinyLFU) eviction policies.
• High-performance sharded memory locks, serialization boundaries, and telemetry tracking.