AWS Weekly Roundup: AWS FinOps Agent in preview, Gemma 4 on Bedrock, Kiro Pro Max, and more (June 15, 2026)

This article summarizes AWS announcements from June 15, 2026, including new AI-native development practices, FinOps capabilities, and infrastructure updates.

• AWS FinOps Agent in preview answers cost questions and surfaces optimization opportunities
• Amazon EC2 M9g/M9gd instances with Graviton5 processors deliver 25% better compute performance
• Nitro Isolation Engine provides mathematically proven VM isolation using formal verification
• Gemma 4 models available on Bedrock with three variants for different workload needs
• Claude Fable 5 on Bedrock revoked June 12 due to US export control compliance
• OpenSearch Service launches MCP Apps for agentic observability in IDEs
• AWS CLI v1 enters maintenance mode; migration to v2 recommended
• Workload Credentials Provider enables short-term credentials for external workloads
• Kiro Pro Max tier adds higher limits and frontier model access
• Frontier teams achieve 4.5x median productivity gains with AI-native development practices

Key takeaway: AWS emphasizes AI-native development, cost optimization, and infrastructure improvements across compute, observability, and credential management services.