In Season 4, Episode 28, Karl and Jon are joined by AWS Community Builder Mahendran Selvakumar. Together, they dive into topics including Amazon’s development of cooling equipment for NVIDIA GPUs to support AI acceleration, the launch of the new AWS Builder Center for the AWS Builder Community, and Amazon's massive AI supercluster—Project Rainier—built for Anthropic. They also explore the upcoming changes to the AWS Free Tier, which will introduce a new credit-based system. And in true Karl fashion, he deftly steers the conversation away from a tangent on uneven sun tans.

05:23 - AWS Transform for VMware

AWS has shifted its strategy from supporting VMware workloads to encouraging migration off VMware entirely. The new AWS Transform for VMware service helps migrate VMware workloads to native AWS services, potentially reducing licensing costs and manual efforts. It supports various migration tasks like network conversion and instance sizing.

12:08 - Amazon cooling equipment for Nvidia GPUs

As AI workloads increase power demands, Amazon is developing in-row heat exchangers to cool Nvidia GPUs more efficiently. This liquid cooling solution can be retrofitted into existing data centers and is designed to handle the extreme heat generated by high-density GPU racks used for AI applications.

17:50 - Amazon CloudWatch and Application Signals MCP servers for AI-assisted troubleshooting

AWS launched two open-source MCP servers for CloudWatch and Application Signals, enabling AI agents to troubleshoot issues via natural language—accessing metrics, logs, traces, and SLOs for faster root cause analysis.

22:23 - New AWS Builder Center

AWS has launched a new Builder Center to unify various community programs and resources. It provides a centralized platform for learning, building, and connecting within the AWS ecosystem. The center includes features like wishlists for suggesting ideas to AWS and supports multiple languages for broader accessibility.

29:17 - Amazon's AI supercluster for Anthropic (Project Rainier)

Amazon is building a massive AI supercomputer cluster for Anthropic, using custom-designed AI chips instead of traditional GPUs. This project demonstrates significant investment in AI capabilities and includes a custom network fabric for high-bandwidth communication between nodes.

34:39 - Changes to AWS Free Tier

AWS is replacing its traditional free tier with a new credit-based system. New accounts will receive $100 in credits valid for 6 months, with restrictions on certain high-usage services. This change aims to simplify the free tier and prevent unexpected charges for new users.

In Season 4, Episode 27, Karl and Jon are joined by AWS Community Member, Tim Dodd. They discuss Amazon DynamoDB Global Tables with multi-region strong consistency, Amazon ECS-optimized Windows Server 2025 AMIs, AWS Backup support for copying S3 backups across regions/accounts in GovCloud, a Chrome extension using AI to summarize web pages, and building a generative AI landing zone on AWS and then the guys realized they’d spent more time talking about the world’s weather than any of the AWS articles.

03:19 - Amazon DynamoDB Global Tables with multi-region strong consistency

This feature allows for strongly consistent multi-region DynamoDB tables, similar to Aurora DSQL. It's currently limited to major AWS regions but enables applications to have the same consistent data across multiple geographic locations. This is useful for disaster recovery, high availability, and serving users in different regions with the same synchronized dataset.

08:49 -Amazon ECS optimized Windows Server 2025 AMIs

AWS has released new Amazon ECS optimized Windows Server 2025 AMIs. While not groundbreaking, this update ensures Windows container users can run workloads on up-to-date host systems. It highlights the ongoing need to support Windows workloads in containerized environments, despite limitations compared to Linux containers.

13:30 - AWS Backup support for copying S3 backups across regions/accounts in GovCloud

This feature allows GovCloud users to copy S3 backups across regions and accounts, bringing capabilities already available in commercial AWS regions to GovCloud. It's particularly relevant for government agencies adopting cloud-first strategies and implementing best practices for data backup and disaster recovery.

20:12 - Chrome extension using AI to summarize web pages

A developer created a Chrome extension that uses AI to summarize web page content. This tool addresses short attention spans and language barriers by providing quick summaries of long articles or content in unfamiliar languages. It demonstrates a practical application of AI for improving web accessibility and information consumption.

26:59 - Building a generative AI landing zone on AWS

This article discusses how to build a generative AI landing zone on AWS, adapting traditional landing zone concepts to AI workloads. It covers foundational guardrails, development fast lanes, composable building blocks, observability, and governance specific to AI applications. The approach aims to provide a secure, compliant, and efficient foundation for deploying AI workloads on AWS.

In Season 4, Episode 25, Karl and Jon are joined by AWS Community Hero Stephen Sennett. They discuss recent AWS security enhancements and active defense measures, including the introduction of exportable public SSL/TLS certificates from AWS Certificate Manager, the enforcement of 100% MFA for AWS root users, and Amazon Inspector’s new code security feature. The conversation also covers AWS’s $20 billion investment in Australian data center infrastructure. The episode wraps up with a light-hearted segment where the hosts compare their sports tape collections, each trying to outdo the other with increasingly outrageous injury stories.

05:45 - AWS improves active defense to empower customers

This article discusses AWS's internal security tools like Madopt, Mythroat, and Sonaris, which help protect customers at scale. It highlights the decreasing trend in global malicious vulnerability exploit attempts and emphasizes AWS's ability to provide security measures that individual organizations cannot match.

16:40 - AWS Certificate Manager introduces exportable public SSL/TLS certificates

AWS now offers exportable public SSL/TLS certificates at competitive prices ($15 for single domain, $150 for wildcard). This new feature allows for end-to-end encryption within the AWS ecosystem and provides a more cost-effective and manageable solution compared to traditional certificate authorities.

26:14 - AWS enforces 100% MFA for root users

AWS has achieved 100% MFA enforcement for root users, addressing a long-standing security concern. This change alters the login flow for new accounts, requiring MFA setup before access is granted. The guys also discusse the importance of hardware MFA solutions for organizations.

35:48 - Amazon Inspector launches code security feature

Amazon Inspector now includes a code security feature that scans code for vulnerabilities and security issues. While not as comprehensive as some existing tools, it provides a convenient option for AWS customers who want to keep their security tooling within the AWS ecosystem.

42:32 - AWS invests $20 billion in Australian data center infrastructure

AWS is investing $20 billion AUD (about $12.8 billion USD) to expand its data center infrastructure in Australia. This investment aims to strengthen Australia's AI capabilities, improve renewable energy usage, and address data sovereignty concerns. The article also mentions AWS's commitment to training 400,000+ people in Australia in cloud skills since 2017.