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What Changed on AWS in September 2026, and What to Do About It

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October 25, 2026

6 min read

Graviton5 arrived in R9g instances, Lambda SnapStart reached container images, Lambda Managed Instances got 90-minute timeouts, Amazon Linux 2027 entered preview, CloudWatch Omni went GA, Aurora learned to query Iceberg, and Bedrock added Claude Opus 5.5, Claude Fable 5.1 and the GPT-6 family. Filtered for small and mid-sized teams, with an action for each.

AWS News
Graviton
AWS Lambda
Amazon Bedrock
Amazon Linux 2027

Compute

Launch

What it is

What we would do

EC2 R9g and R9gd

Graviton5 memory-optimized instances, up to 35% faster than the previous generation

Benchmark database and cache nodes on them at the next resize

Lambda SnapStart for container images

Snapshot-based fast starts for container-packaged functions

Enable for latency-sensitive container functions, especially ML inference

Lambda Managed Instances: 90-minute timeouts

Asynchronous invocations can now run up to 90 minutes, six times the old limit

Move long batch steps that outgrew 15 minutes back into Lambda

Single-rack AWS Outposts

A 42U rack with up to 2,688 vCPUs and 100 TB of storage

For on-premises footprints too small for a full Outposts deployment

Amazon Linux 2027 preview

Kernel 7.1, SELinux enforcing, post-quantum key exchange by default, DNF5, Python 3.14

Build a test image; keep production on AL2023

Want a second opinion on this for your system?

Book a free 30-minute call. You'll leave knowing what we'd do first and roughly what it costs, whether or not you hire us.

AI and observability

Launch

What it is

What we would do

Claude Opus 5.5 and Claude Fable 5.1 on Bedrock

New Anthropic models for agentic coding and long-running work

Run your eval set before switching; check Region and tier availability

GPT-6 Astra, Sol and Luna on Bedrock

OpenAI's new family; Sol and Luna priced below their GPT-5.6 predecessors

Price high-volume workloads on Luna or Sol against your current model

CloudWatch Omni

OpenTelemetry-based observability with agent tracing and AI investigations

Instrument agents with OpenTelemetry now, whatever the backend

AWS Agent Registry (GA)

Governance for agents, tools and skills, with approvals and audit trails

Useful once more than one team ships agents

AWS Transform .NET CLI (GA)

Command-line .NET modernization, with 50,000 free agent minutes a month

Run it against one .NET Framework app to size a port

Strands harness

Open-source, multi-model agent harness under Apache 2.0

An alternative to building your own loop

Data and platform

Launch

What it is

What we would do

Aurora PostgreSQL queries Iceberg and Parquet

Embedded DuckDB queries the lake alongside live tables, no extra charge

Replace small copy-into-Postgres pipelines; run on readers

Redshift Iceberg v3

Default column values, row lineage and deletion vectors

Keep lake tables on v3 if Redshift reads them

EventBridge custom event buses across accounts

Centralized buses with deduplication and synchronous invocation

Simplify cross-account event routing

EBS volume clones across accounts

Copy volumes between accounts, re-encrypted with the target account's KMS key

Cleaner environment copies and forensics

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As of October 25, 2026. Provided as is, for general information, and accurate to the best of our knowledge on the date shown. Not legal, compliance, tax, financial or other professional advice. Prices, limits and vendor services change; check current vendor documentation before relying on anything here. Terms of use.