AWS’s JavaScript SDK v3.1146.0 adds step-up authentication support for Cognito and expands its live-video tools, including multiview channels that can combine up to 50 streams. The release also gives developers finer controls for automatic code reviews and authentication claims.
Watch Desk analysis
What happened
The update, published on 2 October, covers several AWS services. Its MediaPackage V2 client adds Dynamic Multiview, static filter configuration that does not rely on query parameters, and support for as many as 50 sources in a multiview channel.
Cognito User Pools now support step-up authentication through existing authentication APIs, along with OIDC-standard ACR and AMR claims in issued access and ID tokens. The Security Agent client adds filters to control which pull-request events, target branches and labels trigger an automatic code review. AWS lists these changes in the JavaScript SDK v3.1146.0 release notes.
Our top picks
- Cognito step-up authentication
Applications can ask users for stronger authentication when a situation calls for it, using existing authentication APIs. - More context in Cognito tokens
ACR and AMR claims provide standardised authentication context and method details in issued tokens. - Multiview for up to 50 sources
MediaPackage V2 can combine more live streams into one multiview output. - Static endpoint filters
Developers can configure endpoint layouts and sources without passing them as query parameters. - More selective automatic code reviews
Security Agent trigger filters let teams specify pull-request events, target branches and labels.
Why it matters
These changes touch separate jobs, but each gives developers a practical new lever: more control over when code review runs, how authentication is stepped up, and how live streams are assembled. They are SDK capabilities, not evidence that every service or application will use them automatically.
Our read
This is a useful cross-section of developer-facing changes rather than a sweeping platform overhaul. The standout is the combination of step-up authentication and richer token context; the video additions are handy for teams building multi-feed viewing experiences. If you use these clients, check the relevant service documentation before changing a production flow. SDK notes are a map of what is available, not a substitute for testing the route.
What to watch
- How the Cognito step-up flow is configured in practice.
- Which limits and layouts apply to 50-source multiview channels.
- Whether Security Agent filters fit teams’ existing review rules.
Discussion spark: Would you prioritise stronger, more contextual authentication in Cognito, or tighter control over when automatic code reviews run?
Sources and evidence
- v3.1146.0 (2 October 2026, 18:54 UTC)
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