Kaizen (Legacy) Changelog

This document tracks major changes, feature additions, and improvements in the Kaizen agent platform.

Kaizen v3 and Kaizen v4

This changelog covers Kaizen v3, listed in the App Garden on Kamiwaza 1.3 as Kaizen (Legacy) (catalog name kaizen-legacy). Kaizen v4, listed as Kaizen (catalog name kaizen), is a separate product; its changes are in the Kamiwaza release notes.

Kamiwaza 1.4 refuses new Kaizen v3 deployments and keeps existing ones, which their owner or an administrator can restore in place. Kaizen v4 installs as a separate deployment and does not inherit Kaizen v3 data or configuration. See Kaizen v3 on Kamiwaza 1.4.

Version 1.4.0

Major Features

1. Skills-First Agent Workflows

• Reusable skills: Expanded Kaizen's built-in skill system with richer prebuilt capabilities, including chart, map, PDF, PPTX, and skill-builder workflows.
• Skills over bundles: Continued the shift away from older bundle-centric behavior toward reusable, agent-native skills and defaults.
• Skill visibility: Improved agent creation and conversation UX so active skills and skill configuration are easier to inspect and manage.

2. Context-Aware Document Processing

• Context Service integration: Added first-class support for collections, pipeline jobs, retrieval, and semantic search through Kamiwaza Context Service.
• Ingestion workflows: Agents can submit files for processing, monitor progress, and use retrieved context in downstream work.
• Operational guardrails: Automatic context-search tool injection was temporarily removed while internal authentication issues are stabilized.

3. Better Model, Tool, and Enterprise Integrations

• Kamiwaza model access: Kaizen now centers on Kamiwaza-managed model deployments and custom endpoints instead of direct Anthropic or Claude-specific setup.
• Tool Garden and MCP improvements: Improved Tool Garden MCP discovery, authentication, PAT fallback, host resolution, and error handling.
• Microsoft 365 and SharePoint: Expanded M365 and SharePoint browsing, download handling, schemas, and timeout behavior for more reliable enterprise file access.

4. Workroom-Aware and App Garden-Ready Deployment

• Workroom preservation: Kaizen now preserves workroom context across deployments and related API calls.
• App Garden compatibility: Improved App Garden deployment compatibility, runtime defaults, and route/base-path behavior in packaged deployments.
• Release metadata: Updated extension metadata, preview image handling, and compatibility to target Kamiwaza >=0.10.0.

5. Sandbox and Runtime Controls

• LLM tuning controls: Added configurable timeout, retry, and consumer-hardware defaults for agent model calls.
• Sandbox storage options: Added configurable sandbox storage sizing and persistence controls for workspace durability.
• Runtime hardening: Improved Kubernetes sandbox/runtime support, health checks, and container security context handling.

6. UX and Reliability Improvements

• Conversation experience: Improved approval cards, error toasts, file previews, citations, and conversation reliability under failure conditions.
• File handling: Added support for image attachments and larger uploads, with frontend middleware updates for bigger payloads.
• Workspace polish: Improved agent creation wizard layout, workspace panels, and context-processing progress surfaces.

Technical Improvements

• Security: Hardened error sanitization, upstream error handling, TLS/SSL behavior, and container/runtime defaults.
• Platform resilience: Added platform event logging, HTTP pool improvements, better health endpoints, and more robust SSE/conversation handling.
• Dependency maintenance: Upgraded vulnerable dependencies, refreshed SDK patches, and improved test coverage across context, MCP, runtime-default, and sandbox flows.

---

Version 1.3.2 vs 0.9.0

🚀 Major Features

1. App Garden Integration

• Deployment: Now fully deployable as a Kamiwaza App Garden extension.
• Configuration: Auto-generated docker-compose and metadata for seamless platform integration.
• Streaming: Migrated from WebSockets to Server-Sent Events (SSE) for better compatibility with corporate proxies and HTTP-only environments.

2. Advanced Skills System

• Custom Knowledge: Inject domain expertise into agents.
• Skill Types:
  • Repository Skills: Always-active context (policies, business rules).
  • Knowledge Skills: Triggered by specific keywords.
  • Task Skills: Pre-defined workflows with inputs.

3. MCP (Model Context Protocol) Integration

• External Tools: Connect agents to external APIs and services (Zapier, Google Workspace, Slack).
• Security: Encrypted storage for authentication headers and keys.
• Management: UI for configuring and testing MCP server connections.

4. Enterprise Security & Governance

• Action Confirmation: Configurable policies for tool execution:
  • Never Confirm: Autonomous execution.
  • Confirm Risky: Pauses for high-risk actions (file deletion, network calls).
  • Always Confirm: Manual approval for every step.
• Sandbox Controller: Optional secure mode for strict Docker isolation (Phase 8.5).

5. Enhanced Workspace & File Management

• File Uploads: "Paperclip" button to inject files directly into the agent's workspace.
• File Downloads: Browse and download generated files (reports, code) from the side panel.
• Activity Stream: Real-time "Thinking", "Tool Usage", and "Result" blocks for full visibility into agent logic.

6. UX Improvements

• ChatGPT-Style Sidebar: Time-grouped conversation history (Today, Yesterday, Last 7 Days).
• Inline Confirmation: Approve or reject agent actions directly within the chat stream.
• Stuck Detection: If an agent gets stuck in a loop or repetitive behavior, Kaizen automatically detects this and can help recover, ensuring your agent continues making progress on your tasks.

7. Microsoft 365 Integration

• Cloud Connectors: Connect directly to SharePoint and OneDrive to import documents into the workspace.
• User-Delegated Auth: Secure OAuth flow ensures users only access files they have permission to see.

🛠 Technical Improvements

• Backend: Migrated to FastAPI + Python 3.12.
• Frontend: Upgraded to Next.js 15.
• Database: Robust PostgreSQL storage with Alembic migrations for agents, secrets, and conversation history.
• SDK: Updated to OpenHands SDK 1.8.2 with custom SSL patching for internal service communication.

---

Historical Version Summary

Version	Status	Key Focus
1.4.0	Production	Skills-first workflows, context pipelines, runtime hardening.
1.3.2	Production	App Garden deployment, SSE streaming, Polish.
1.2.0	Feature Complete	Sandbox Controller, File Uploads.
1.1.0	Security	Security Policies, MCP Integration.
1.0.0	Core Features	Skills System, Workspace Visibility.
0.9.0	MVP	Basic Chat, Docker Execution, Simple CRUD.