Lambda's update block, EKS versions, RDS Extended Support price steps, Bedrock model retirements, the end of Python 3.11, Node.js 22 and PHP 8.3, and the EU's Cyber Resilience Act and AI Act dates: every 2027 deadline we could verify, month by month, with what each costs if missed.
Almost every expensive surprise on AWS is a date someone published a year in advance: a runtime deprecation, a database version leaving standard support, a model retirement. The dates for 2027 are mostly known already. Here they are in one place, from the AWS documentation and the projects themselves, as of October 2026. Dates can move: check the linked service pages before planning around a specific day.
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.
From the Lambda, EKS, RDS and Bedrock lifecycle pages, the Node.js, Python and PHP release schedules, Microsoft and Canonical lifecycle pages and the European Commission, October 2026.
For most deprecated runtimes — Node.js 16 to 20, Python 3.8 and 3.9, .NET 6 and others — Lambda blocks function creation from July 29 and updates from August 31, 2027. After that, a function on an old runtime cannot receive even a one-line hotfix without a runtime upgrade in the same change. Upgrade in the first half of the year, while it is a project rather than an incident.
Six EKS versions cross a support boundary in 2027. A team that upgrades once a year will pay extended-support pricing for months of it; a team that upgrades every four months will not.
Claude Sonnet 5.5 — the model many teams are standardising on now — is only guaranteed on Bedrock until September 28, 2027. That is not a retirement date, but it is the earliest one. Build the evaluation set that makes a model switch an afternoon before you need it.
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As of October 26, 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.