v0.2.2

Highlights

Massive release with 100+ commits — performance optimizations, new features, comprehensive testing, and major code quality improvements.

✨ New Features

• Autoindex — Directory listing support for static file serving
• Nginx Config Import — Convert nginx configurations to lolly format
• Stale Cache — stale_if_error and stale_if_timeout cache fallback
• Layered Cache Architecture — Multi-tier caching with enhanced proxy cache
• Slow Start — Gradual traffic ramp-up for load balancer targets
• ETag & 304 — Static files support ETag and 304 Not Modified responses
• Expires — Cache-Control expires header support for static files
• Alias — Location alias directive support
• Rate Limit — Response rate limiting middleware
• Internal Directive — Internal-only location support
• Server Tokens / Types — Server identification and MIME type configuration
• Random LB — Random load balancing algorithm
• ProxyBind / Buffering / ProxyURI — Upstream server parameters and response header control
• gzip_static — Now defaults to enabled

⚡ Performance

• Zero-allocation optimizations across streaming, caching, and compression
• sync.Pool pointer wrapping to eliminate boxing allocations
• FileEntry pooling to reduce GC pressure
• RWMutex for FileInfoCache; cached ETag regeneration avoidance
• Balancer healthy slice pooling
• ConsistentHash and RateLimiter concurrency optimizations
• Pre-compressed file existence caching
• RWMutex-priority reads in cache Get with double-check upgrade

🏗️ Refactoring

• Extracted CommonAdapter for HTTP/2/3 adapters
• Extracted createFastServer, createProxyForConfig helpers
• Extracted TLS config generation to sslutil
• Unified IP whitelist parsing and Lua ngx table helpers
• Modernized code with Go 1.22+ features
• Eliminated goto statements in proxy cache handling

🧪 Testing

• Full E2E test suite (cache, LB, health check, WebSocket, SSL/TLS, HTTP/2)
• E2E tests parallelized — from ~2h to ~102s
• Comprehensive unit test coverage expansion
• Benchmark test CI workflow
• Integration tests with testcontainers
• DNS resolver mock tests

🐛 Fixes

• Lua engine concurrency safety issues
• Security: 2 CRITICAL + 6 HIGH issues resolved
• ProxyBind dial timeout and cookie attribute matching
• HealthChecker restart support
• Various lint, formatting, and E2E test fixes