CHANGELOG.md

Changelog

All notable changes to the Three Horizons Accelerator will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

• Environment configuration files (dev, staging, prod tfvars)
• Helm values for ArgoCD and monitoring stack
• CHANGELOG.md for release tracking
• README files for all Terraform modules

Changed

• Updated agent-router.yml with all 17 Copilot Chat Agents mapped
• Fixed soft_fail settings in CI workflow
• Updated documentation counts to reflect current state

Fixed

• Security scans now properly block pipeline on vulnerabilities
• Missing outputs.tf for naming module

4.0.0 - 2025-12-15

Added

Infrastructure (H1 Foundation)

• 15 Terraform modules for Azure infrastructure
  • aks-cluster: Azure Kubernetes Service with Workload Identity
  • ai-foundry: Microsoft Foundry (OpenAI, AI Search)
  • argocd: ArgoCD GitOps controller
  • container-registry: Azure Container Registry with geo-replication
  • cost-management: Cost analysis and budgets
  • databases: PostgreSQL, Redis, Cosmos DB
  • defender: Microsoft Defender for Cloud
  • disaster-recovery: Velero backup configuration
  • external-secrets: External Secrets Operator
  • github-runners: Self-hosted GitHub Actions runners
  • naming: Azure CAF naming conventions
  • networking: VNet, subnets, NSGs, private DNS
  • observability: Prometheus, Grafana, Loki, Alertmanager
  • purview: Microsoft Purview governance
  • security: Key Vault, managed identities, RBAC

AI Agents (23 total)

• H1 Foundation (8 agents)

  • infrastructure-agent
  • networking-agent
  • security-agent
  • container-registry-agent
  • database-agent
  • defender-cloud-agent
  • purview-governance-agent

• H2 Enhancement (5 agents)

  • gitops-agent
  • golden-paths-agent
  • observability-agent
  • rhdh-portal-agent
  • github-runners-agent

• H3 Innovation (4 agents)

  • ai-foundry-agent
  • mlops-pipeline-agent
  • sre-agent-setup
  • multi-agent-setup

• Cross-Cutting (6 agents)

  • migration-agent (v2.0.0 with Microsoft Playbook)
  • validation-agent
  • rollback-agent
  • cost-optimization-agent
  • github-app-agent
  • identity-federation-agent

Golden Path Templates (22 total)

• H1 Foundation (6 templates)

  • basic-cicd
  • documentation-site
  • infrastructure-provisioning
  • new-microservice
  • security-baseline
  • web-application

• H2 Enhancement (9 templates)

  • ado-to-github-migration (NEW - Microsoft Playbook aligned)
  • api-gateway
  • api-microservice
  • batch-job
  • data-pipeline
  • event-driven-microservice
  • gitops-deployment
  • microservice
  • reusable-workflows

• H3 Innovation (7 templates)

  • ai-evaluation-pipeline
  • copilot-extension
  • foundry-agent
  • mlops-pipeline
  • multi-agent-system
  • rag-application
  • sre-agent-integration

GitHub Configuration

• 26 Issue templates with T-shirt sizing
• 6 CI/CD workflows
• 3 Copilot chat modes (architect, reviewer, sre)
• 17 Copilot agents (onboarding, architect, platform, terraform, reviewer, devops, security, sre, test, docs, deploy, azure-portal-deploy, github-integration, ado-integration, hybrid-scenarios, template-engineer, context-architect)
• 15 skills (azure-cli, azure-infrastructure, terraform-cli, kubectl-cli, helm-cli, argocd-cli, github-cli, mcp-cli, database-management, observability-stack, ai-foundry-operations, validation-scripts, deploy-orchestration, prerequisites, codespaces-golden-paths)
• 3 instruction files (terraform, kubernetes, python)
• 7 prompts (create-service, review-code, generate-tests, deploy-service, deploy-platform, troubleshoot-incident, generate-docs)
• Branch protection workflow
• Dependabot configuration

Observability

• 3 Grafana dashboards
  • Platform overview
  • Golden path applications
  • Cost management
• 30+ Prometheus alerting rules
• Recording rules for SLO tracking

Documentation

• Comprehensive README
• Architecture Guide
• Deployment Guide
• Administrator Guide
• Troubleshooting Guide
• Module Reference
• Performance Tuning Guide
• 6 Operational Runbooks

Configuration

• 4 sizing profiles (small, medium, large, xlarge)
• LATAM region availability matrix
• 15 MCP server configurations

Security

• OPA Gatekeeper policies
• Kubernetes constraints
• Terraform policy as code (Rego)
• Security scanning in CI/CD
• Workload Identity configuration

3.0.0 - 2025-06-01

Added

• Initial Three Horizons architecture
• Basic Terraform modules
• ArgoCD integration
• RHDH portal setup

Changed

• Migrated from Azure DevOps to GitHub

2.0.0 - 2025-01-15

Added

• Azure infrastructure modules
• Basic CI/CD pipelines

1.0.0 - 2024-09-01

Added

• Initial release
• Basic project structure

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