Bug Fixes

• Fix batch channel closure when using WithChunkFn (#8, 566dcd6)
• Fix metrics timer recording on worker errors (#8, 566dcd6)
• Fix pool completion callback on context deadline exceeded (#8, 566dcd6)
• Fix WithWorkerChanSize to recreate shared channels (0c0c3b6)

Improvements

• Update dependencies and modernize code for Go 1.24 (#7, 0b5f6fd)
• Add CLAUDE.md documentation (ab83b51)
• Fix CI workflow for proper caching (#5, c06c81a)

Examples

• Add basic example - minimal hello world (#8, 7799cbe)
• Add chunking example - WithChunkFn for key-based routing (#8, 7799cbe)
• Add pool_completion example - pool completion callback (#8, 7799cbe)
• Add READMEs for all new examples (#8, 7799cbe)
• Fix linter issues across all examples (#8, 7799cbe)

Hotfix Release

Bug Fixes

• Critical: Fix WithWorkerChanSize to properly recreate channels with configured size (#635c707)
• Remove duplicate comment in metrics.Stats.String (#94d84b6)
• Remove unnecessary context initialization in NewStateful (#21451f9)

Documentation

• Update minimum Go version requirement to 1.23+ (uses iter package) (#a8cef35)

Details

Previously, WithWorkerChanSize only updated the internal field but didn't recreate channels, making it effectively a no-op. This has been fixed to properly apply the configured channel buffer size.

What's New in v0.8.0

New Features

• Rate Limiter Middleware - Added a new middleware that provides pool-wide rate limiting using a token bucket algorithm
  • Configure rate (requests/second) and burst capacity
  • Blocks when rate limit exceeded (respects context cancellation)
  • Shared across all workers in the pool
  • Example: middleware.RateLimiter[Task](10, 5) for 10 tasks/sec with burst of 5

Updates

• Go 1.24 - Updated minimum Go version to 1.24
• Dependencies - Updated golang.org/x/sync to v0.14.0, added golang.org/x/time v0.11.0
• CI/CD - Updated GitHub Actions workflow and golangci-lint-action from v3 to v7
• Linter Config - Migrated .golangci.yml to v2 format for better maintainability

Bug Fixes

• Fixed logical error in batch overlap detection test
• Improved test timing tolerances to reduce CI flakiness

Documentation

• Updated README with rate limiting examples
• Enhanced middleware example to demonstrate rate limiting
• Normalized comment style throughout codebase

Improvements

• Code coverage increased by 0.2% to 94.482%

Usage Example

// Create pool with rate limiting
p := pool.New[string](5, worker).Use(
    middleware.RateLimiter[string](10, 5), // 10 requests/sec with burst of 5
)

Full Changelog

v0.7.0...v0.8.0

What's Changed

• Cross-pools communication by @umputun in #3
• Add examples for corss-pools use cases

Full Changelog: v0.5.0...v0.6.0

What's Changed

• Performance optimization by @umputun in #2

Full Changelog: v0.4.0...v0.5.0

What's Changed

• Add middleware support to pool package by @umputun in #1

Full Changelog: v0.3.2...v0.4.0

• improve options ergonomics, change to direct With methods
• remove context-related configuration options from WorkerGroup
• add alternative pool implementations to readme

Full Changelog: v0.2.1...v0.3.0

• refactor metrics to separate stats and user-defined
• eliminate sync (mutex) on stats metrics as they are per worker

Full Changelog: v0.1.0...v0.2.0

initial release