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Version 3.0.0 - Major Platform Release

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Overview

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Key Features

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PAP Agent Protocol & Lifecycle Management

• Plugged.in Agent Protocol (PAP): Comprehensive framework for autonomous agent lifecycle management
• Dual-Profile Architecture: gRPC control plane (PAP-CP) + JSON-RPC I/O plane (PAP-Hooks)
• Agent State Machine: NEW -> PROVISIONED -> ACTIVE -> DRAINING -> TERMINATED lifecycle
• Zombie Prevention: Strict heartbeat/metrics separation prevents control plane saturation
• DNS-Based Identity: Verifiable agent identities via {agent}.{region}.a.plugged.in
• Ed25519 Signatures: All control plane messages cryptographically signed

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Model Router (Unified LLM Gateway)

• Multi-Provider Routing: OpenAI, Anthropic, Google, xAI, DeepSeek support
• OpenAI-Compatible API: Drop-in replacement for any OpenAI SDK
• JWT Authentication: Per-agent token generation with 1-year expiry
• Cost Tracking: Per-request cost and latency headers
• Model Aliases: claude -> claude-sonnet-4, gemini -> gemini-2.0-flash

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Embedded Vector Search (zvec)

• In-Process Vector Engine: No external vector database needed
• HNSW Indexing: High-recall approximate nearest neighbor search
• Multi-Format Document Support: PDF, TXT, Markdown with automatic chunking
• Semantic Search: Natural language queries across your knowledge base

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Agent Templates & Marketplace

• Docker-Based Deployment: Kubernetes-native agent deployment
• Template Marketplace: Browse, install, and configure agent templates
• ADL Configuration: Agent Description Language for configurable agents
• Health Monitoring: Integrated health checks and metrics collection

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Memory Clipboard System

• Persistent Key-Value Storage: Named and indexed access patterns
• Stack Operations: Push/pop for sequential processing
• TTL Expiration: Automatic cleanup with configurable TTL
• Source Tracking: Track whether entries came from UI, SDK, or MCP

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MCP Proxy Enhancements

• Streamable HTTP Transport: Modern HTTP streaming for remote MCP servers
• OAuth 2.1 Integration: Automatic token refresh with 15-minute pre-expiry rotation
• Sandbox Isolation: bubblewrap/firejail for STDIO server sandboxing
• 13 Built-in Static Tools: Discover, search, clipboard, documents, notifications

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Official SDKs

• JavaScript/TypeScript SDK (v1.0.1): Full-featured with TypeScript types
• Python SDK (v1.0.1): Sync and async clients with Pydantic models
• Go SDK (v1.0.1): Full type safety with Go 1.24+

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Technical Details

• 50+ Database Tables: Comprehensive schema with 3000+ line Drizzle ORM definition
• 6 Languages: English, Turkish, Chinese, Hindi, Japanese, Dutch
• Rate Limiting: Tiered Redis-backed with in-memory fallback
• AES-256-GCM Encryption: For all sensitive configuration fields

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Migration Notes

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From v2.x

1. Pull latest changes and install dependencies
2. Run database migrations: pnpm db:generate && pnpm db:migrate
3. Configure new environment variables for agent features (optional)
4. No breaking changes to existing MCP server configurations

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New Environment Variables

# Model Router (required for agents)
MODEL_ROUTER_JWT_SECRET=<secret>

# Feature Flags (optional)
ENABLE_RAG=true
ENABLE_NOTIFICATIONS=true

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Upgrade Steps

# Pull latest changes
git pull origin main

# Install dependencies
pnpm install

# Generate and apply database migrations
pnpm db:generate
pnpm db:migrate

# Build and restart
pnpm build
pnpm start

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What’s Next

• Collective Best Practices system (v3.1.0)
• Long-term memory with intelligent forgetting
• Claude Code native plugin