用 Amazon Nova Forge 设计多轮强化学习的自定义奖励函数
Amazon Nova Forge 支持自定义多轮强化学习奖励函数。通过 BYOO 能力，用户可在自有环境运行奖励逻辑，配合 GRPO 优化多步轨迹累积奖励。对比实验显示 RL 在分布外泛化上优于 SFT。 
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收藏用 SageMaker AI 和 Bedrock AgentCore 构建智能体工作流
AWS 展示了如何在 Bedrock AgentCore 运行时中混合使用自有模型和托管大模型：将 Qwen 3.5 9B 部署在 SageMaker AI 上，与 Bedrock 的 Claude 模型一起组成多智能体系统，由编排器按意图路由到预算分析或金融分析子代理。重点解决了 Strands Agents 默认不提供 token 级可观测性的问题。
Amazon RDS for Oracle 现支持 Oracle APEX 26.1
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Amazon SES click tracking now supports custom URL paths for mobile app deep linking
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AWS Billing and Cost Management introduces Managed Dashboards
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AWS Client VPN now supports CLI, administration controls, and faster connections
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Amazon Redshift adds rg.large and rg.12xlarge instance sizes in AWS GovCloud (US) Regions
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Claude Opus 5 is now available in AWS GovCloud (US)
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Amazon Quick Microsoft 365 extensions are now generally available
Today, Amazon Quick announces the general availability of Microsoft 365 extensions for Excel, PowerPoint, Word, and Outlook. These extensions enable Quick to perform tasks directly within users' M365 ...
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OpenAI Daybreak Red/Blue 两款网络安全模型登陆 Amazon Bedrock
OpenAI 的 Daybreak Red（GPT-5.6 Cyber）和 Daybreak Blue（GPT-5.6 Sol）现已在 Amazon Bedrock 上线，面向通过 OpenAI Daybreak 准入审核的客户。Blue 面向漏洞发现、检测工程、事件响应等防御工作流；Red 面向漏洞研究、漏洞利用复现、缓解方案开发等高级授权任务，拒绝阈值更低但身份验证和访问控制更严格。推理数据不用于模型训练，ZOA（零操作员访问）在芯片层面强制执行。目前仅 US East (N. Virginia) 可用，需通过 OpenAI 或 AWS 账户团队申请准入。
用AgentCore可观测性监控本地和多云AI Agent
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Amazon 发布 Bedrock AgentCore Browser Tool，通过 Playwright 和 WebSocket CDP 连接让 AI Agent 操控基于服务端中间件渲染 HTML 的遗留 Web 界面，解决 RPA 无法规模化处理需要类人交互的场景。
用 Amazon Bedrock AgentCore 加速并购尽职调查
AWS 发布基于 Bedrock AgentCore 的多智能体尽职调查系统参考架构，可自动完成数据收集、分析和合规检查，解决并购团队手动审查目标公司耗时数周的问题。系统结合智能路由、持久化记忆和审计追踪，应对数据分散、重复劳动和治理合规四大痛点。
Amazon Quick 登陆 Microsoft 365：在你工作的地方使用 Agentic AI
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AWS Certificate Manager supports switching from e-mail to DNS validation
AWS Certificate Manager (ACM) now enables you to change the domain validation method on your existing ACM issued public TLS certificates from e-mail to DNS, without reissuing the certificate or changi...
Amazon S3 访问拒绝错误消息新增具体策略 ARN
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AWS Clean Rooms supports minimum aggregation thresholds in custom analysis rules
AWS Clean Rooms now supports minimum aggregation thresholds for the Custom analysis rule type. Minimum aggregation helps protect the privacy of individual data subjects by preventing queries from retu...
Amazon Quick now supports approval policies for sharing
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Amazon Quick now supports per-user resource limits
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