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AWS Lambda announces self-managed code storage

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AWS·1 day ago · Jul 15, 2026, 07:00 AMFeatureAI-assisted summary

Summary

Introduces self‑managed Amazon S3 bucket storage mode (`S3ObjectStorageMode=REFERENCE`) allowing Lambda to reference code directly without copying.
Removes the copy step, eliminating the 75 GB per‑region code‑storage limit and reducing activation latency; default Lambda‑managed limit raised to 300 GB.
Requires granting `s3:GetObject` and `s3:GetObjectVersion` to the Lambda service principal; no extra Lambda fees, only standard S3 costs.

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