AWS Weekly Roundup: AWS RTB Fabric, AWS Customer Carbon Footprint Tool, AWS Secret-West Region, and more (October 27, 2025)

This week started with challenges for many using services in the the North Virginia (us-east-1) Region. On Monday, we experienced a service disruption affecting DynamoDB and several other services due to a DNS configuration problem. The issue has been fully resolved, and you can read the full details in our official summary. As someone who works closely with developers, I know how disruptive these incidents can be to your applications and your users. The teams are learning valuable lessons from this event that will help improve our services going forward.

Last week’s launches

On a brighter note, I’m excited to share some launches and updates from this past week that I think you’ll find interesting.

AWS RTB Fabric is now generally available — If you’re working in advertising technology, you’ll be interested in AWS RTB Fabric, a fully managed service for real-time bidding workloads. It connects AdTech partners like SSPs, DSPs, and publishers through a private, high-performance network that delivers single-digit millisecond latency—critical for those split-second ad auctions. The service reduces networking costs by up to 80% compared to standard cloud solutions with no upfront commitments, and includes three built-in modules to optimize traffic, improve bid efficiency, and increase bid response rates. AWS RTB Fabric is available in US East (N. Virginia), US West (Oregon), Asia Pacific (Singapore and Tokyo), and Europe (Frankfurt and Ireland).

Customer Carbon Footprint Tool now includes Scope 3 emissions data — Understanding the full environmental impact of your cloud usage just got more comprehensive. The AWS Customer Carbon Footprint Tool (CCFT) now covers all three industry-standard emission scopes as defined by the Greenhouse Gas Protocol. This update adds Scope 3 emissions—covering the lifecycle carbon impact from manufacturing servers, powering AWS facilities, and transporting equipment to data centers—plus Scope 1 natural gas and refrigerants. With historical data available back to January 2022, you can track your progress over time and make informed decisions about your cloud strategy to meet sustainability goals. Access the data through the CCFT dashboard or AWS Billing and Cost Management Data Exports.

Additional updates

I thought these projects, blog posts, and news items were also interesting:

AWS Secret-West Region is now available — AWS launched its second Secret Region in the western United States, capable of handling mission-critical workloads at the Secret U.S. security classification level. This new region provides enhanced performance for latency-sensitive workloads and offers multi-region resiliency with geographic separation for Intelligence Community and Department of Defense missions. The infrastructure features data centers and network architecture designed, built, accredited, and operated for security compliance with Intelligence Community Directive requirements.

Amazon CloudWatch now generates incident reports — CloudWatch investigations can now automatically generate comprehensive incident reports that include executive summaries, timeline of events, impact assessments, and actionable recommendations. The feature collects and correlates telemetry data along with investigation actions to help teams identify patterns and implement preventive measures through structured post-incident analysis.

Amazon Connect introduces threaded email views — Amazon Connect email now displays exchanges in a threaded format and automatically includes prior conversation context when agents compose responses. These enhancements make it easier for both agents and customers to maintain context and continuity across interactions, delivering a more natural and familiar email experience.

Amazon EC2 I8g instances expand to additional regions — Storage Optimized I8g instances are now available in Europe (London), Asia Pacific (Singapore), and Asia Pacific (Tokyo). Powered by AWS Graviton4 processors and third-generation AWS Nitro SSDs, these instances deliver up to 60% better compute performance and 65% better real-time storage performance per TB compared to previous generation I4g instances, with storage I/O latency reduced by up to 50%.

AWS Location Service adds enhanced map styling — Developers can now incorporate terrain visualization, contour lines, real-time traffic overlays, and transportation-specific routing details through the GetStyleDescriptor API. The new styling parameters enable tailored maps for specific applications—from outdoor navigation to logistics planning.

CloudWatch Synthetics introduces multi-check canaries — You can now bundle up to 10 different monitoring steps in a single canary using JSON configuration without custom scripts. The multi-check blueprints support HTTP endpoints with authentication, DNS validation, SSL certificate monitoring, and TCP port checks, making API monitoring more cost-effective.

Amazon S3 Tables now generates CloudTrail events — S3 Tables now logs AWS CloudTrail events for automatic maintenance operations, including compaction and snapshot expiration. This enables organizations to audit the maintenance activities that S3 Tables automatically performs to enhance query performance and reduce operational costs.

AWS Lambda increases asynchronous invocation payload size to 1 MB — Lambda has quadrupled the maximum payload size for asynchronous invocations from 256 KB to 1 MB across all AWS Commercial and GovCloud (US) Regions. This expansion streamlines architectures by allowing comprehensive data to be included in a single event, eliminating the need for complex data chunking or external storage solutions. Use cases now better supported include large language model prompts, detailed telemetry signals, complex ML output structures, and complete user profiles. The update applies to asynchronous invocations through the Lambda API or push-based events from services like S3, CloudWatch, SNS, EventBridge, and Step Functions. Pricing remains at 1 request charge for the first 256 KB, with 1 additional charge per 64 KB chunk thereafter.

Upcoming AWS events

Keep a look out and be sure to sign up for these upcoming events:

AWS re:Invent 2025 (December 1-5, 2025, Las Vegas) — AWS flagship annual conference offering collaborative innovation through peer-to-peer learning, expert-led discussions, and invaluable networking opportunities. Registration is now open.

Join the AWS Builder Center to learn, build, and connect with builders in the AWS community. Browse for upcoming in-person and virtual developer-focused events in your area.

That’s all for this week. Check back next Monday for another Weekly Roundup!

~ micah