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AWS Introduces CDK Mixins for Composable Infrastructure Abstractions

Renato Losio — Sat, 13 Jun 2026 05:38:00 GMT

AWS recently announced CDK Mixins, a new AWS CDK feature that lets developers add reusable capabilities like security, monitoring, and configuration to AWS resources. Mixins work across different construct types, making infrastructure code more flexible and reusable.

By Renato Losio

OpenAI's GPT-5.5 and Codex Reach General Availability on Amazon Bedrock

Steef-Jan Wiggers — Thu, 11 Jun 2026 09:24:00 GMT

OpenAI's GPT-5.5, GPT-5.4, and Codex are now generally available on Amazon Bedrock, one month after OpenAI revised its exclusive Azure arrangement. Pricing matches OpenAI's direct rates with usage counting toward AWS commitments. Codex shifts to pay-per-token billing with no seat fees. GPT-5.4 is the first OpenAI model available in AWS GovCloud.

By Steef-Jan Wiggers

AWS Releases Next Generation of Amazon OpenSearch Serverless

Gianmarco Nalin — Mon, 08 Jun 2026 17:00:00 GMT

Amazon Web Services has recently announced the general availability of the next generation of Amazon OpenSearch Serverless, with a redesigned architecture that enables 20 times faster resource provisioning than the previous serverless architecture, true scale-to-zero capability, and up to 60% lower cost than a provisioned cluster for peak loads.

By Gianmarco Nalin

ExtendDB: Open Source Amazon DynamoDB Compatible Adapter with Pluggable Storage Backends

Renato Losio — Sun, 07 Jun 2026 06:25:00 GMT

AWS recently announced ExtendDB, a DynamoDB-compatible adapter that lets developers use the DynamoDB API with different storage backends, starting with PostgreSQL. The project supports existing SDKs and tools without modification, giving teams greater flexibility to run DynamoDB-style workloads outside of native DynamoDB while maintaining compatibility with current applications and workflows.

By Renato Losio

AWS Replaces Fat-Tree Data Center Networks with Random Graph Theory, Cutting Routers by 69%

Steef-Jan Wiggers — Thu, 04 Jun 2026 08:25:00 GMT

AWS disclosed that Resilient Network Graphs, a flat network architecture based on quasi-random graph theory, is now the default for most new data center builds. The design replaces fat-tree hierarchies with direct ToR-to-ToR mesh connections using passive optical ShuffleBoxes, cutting routers by 69%, boosting throughput by 33%, and reducing network power consumption by 40%.

By Steef-Jan Wiggers