v3.3.0

What's Changed

• Feat: Add stateless mode for StreamableHttpServerTransport by @CodeWithKyrian in #48
• Fix: Make PCNTL extension optional for StdioServerTransport by @CodeWithKyrian in #49

Full Changelog: 3.2.2...3.3.0

v3.2.2

What's Changed

• Fix Architecture graph by @szepeviktor in #42
• Fix: Correctly handle invokable class tool handlers by @CodeWithKyrian in #47

New Contributors

• @szepeviktor made their first contribution in #42

Full Changelog: 3.2.1...3.2.2

v3.2.1

What's Changed

• feat: use callable instead of Closure|array|string for handler type by @CodeWithKyrian in #41

Full Changelog: 3.2.0...3.2.1

v3.2.0

What's Changed

• fix: resolve cache session handler index inconsistencies by @CodeWithKyrian in #36
• feat: Add comprehensive callable handler support for closures, static methods, and invokable classes by @CodeWithKyrian in #38
• feat: Enhanced Completion Providers with Values and Enum Support by @CodeWithKyrian in #40

Upgrade Guide

If you're using the CompletionProvider attribute with the named providerClass parameter, consider updating to the new provider parameter for consistency:

// Before (still works)
#[CompletionProvider(providerClass: UserProvider::class)]

// After (recommended)
#[CompletionProvider(provider: UserProvider::class)]

The old providerClass parameter continues to work for backward compatibility, but may be dropped in a future major version release.

Full Changelog: 3.1.1...3.2.0

v3.1.1

What's Changed

• Fix: implement proper MCP protocol version negotiation by @CodeWithKyrian in #35

Full Changelog: 3.1.0...3.1.1

v3.1.0

What's Changed

• Refactor: expose session garbage collection method for integration by @CodeWithKyrian in #31
• feat: add instructions in server initialization result by @CodeWithKyrian in #32
• fix(cache): handle missing session in index for CacheSessionHandler by @CodeWithKyrian in #33

Full Changelog: 3.0.2...3.1.0

v3.0.2

What's Changed

• fix: Registry cache clearing bug preventing effective caching by @CodeWithKyrian in #29
• Fix ServerBuilder error handling for manual element registration by @CodeWithKyrian in #30

Full Changelog: 3.0.1...3.0.2

v3.0.1

What's Changed

• Fix validation failure for MCP tools without parameters by @CodeWithKyrian in #28

Full Changelog: 3.0.0...3.0.1

v3.0.0

This release brings support for the latest MCP protocol version along with enhanced schema generation, new transport capabilities, and streamlined APIs.

✨ New Features

• StreamableHttpServerTransport: New transport with resumability, event sourcing, and JSON response mode for production deployments
• Smart Schema Generation: Automatic JSON schema generation from method signatures with optional #[Schema] attribute enhancements
• Completion Providers: #[CompletionProvider] attribute for auto-completion in resource templates and prompts
• Batch Request Processing: Full support for JSON-RPC 2.0 batch requests
• Enhanced Session Management: Multiple session backends (array, cache, custom) with persistence and garbage collection

🔥 Breaking Changes

• Schema Package Integration: Now uses php-mcp/schema package for all DTOs, requests, responses, and content types
• Session Management: ClientStateManager replaced with SessionManager and Session classes
• Component Reorganization: Support\* classes moved to Utils\* namespace
• Request Processing: RequestHandler renamed to Dispatcher

Note: Most of these changes are internal and won't affect your existing MCP element definitions and handlers.

🔧 Enhanced Features

• Improved Schema System: The #[Schema] attribute can now be used at both method-level and parameter-level (previously parameter-level only)
• Better Error Handling: Enhanced JSON-RPC error responses with proper status codes
• PSR-20 Clock Interface: Time management with SystemClock implementation
• Event Store Interface: Pluggable event storage for resumable connections

📦 Dependencies

• Now requires php-mcp/schema ^1.0
• Enhanced PSR compliance (PSR-3, PSR-11, PSR-16, PSR-20)

🚧 Migration Guide

Capabilities Configuration

Before:

->withCapabilities(Capabilities::forServer(
    resourcesEnabled: true,
    promptsEnabled: true,
    toolsEnabled: true,
    resourceSubscribe: true
))

After:

->withCapabilities(ServerCapabilities::make(
    resources: true,
    prompts: true,
    tools: true,
    resourcesSubscribe: true
))

Transport Upgrade (Optional)

For production HTTP deployments, consider upgrading to the new StreamableHttpServerTransport:

Before:

$transport = new HttpServerTransport(host: '127.0.0.1', port: 8080);

After:

$transport = new StreamableHttpServerTransport(host: '127.0.0.1',  port: 8080);

📚 Documentation

• Complete README rewrite with comprehensive examples and deployment guides
• New production deployment section covering VPS, Docker, and SSL setup
• Enhanced schema generation documentation
• Migration guide for v2.x users

Full Changelog: 2.3.1...3.0.0

v2.3.1

What's Changed

• Streamline Registry Notifications and Add Discovery Suppression Support by @CodeWithKyrian in #22
• Disable registry notifications during manual registrations to prevent unwanted triggers

Full Changelog: 2.3.0...2.3.1