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Cloud Changelog
AWS Lambda changelog
61 announcements since February 2025 · 5 GA · 2 previews · 1 deprecation · 6 Region expansions
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October 20267
SOCI lazy loading for OCI images cuts container startup times by up to 70%
Telemetry Exporter plugin sends execution history to 13 destinations, plus an MCP server
Added in Hong Kong, Malaysia, Thailand and Spain, for 14 Regions in totalRegion
Available in AWS GovCloud (US-West) and AWS GovCloud (US-East) RegionsRegion
Go SDK for building long-running workflows with Lambda durable functionsGA
Detects and stops recursive loops with EventBridge Custom event buses
Operations per execution raised from 3,000 to 30,000; checkpoint payload from 256 KB to 1 MB
September 20264
August 20266
Supports AWS PrivateLink endpoints for MicroVM APIs and each MicroVM's HTTP endpoint
Managed runtimes can be tried before GA, starting with Node.js 26 and Python 3.15Preview
Functions support full IAM resource-based policies with multiple principals and all condition keys
Added in Mumbai, Singapore, Sydney, Frankfurt and Stockholm, for 10 Regions in totalRegion
Bandwidth scales from 625 Mbps at 2 GB to 3,000 Mbps at 10 GB for non-VPC functions
July 20265
Java 8, 11 and 17 on Amazon Linux 2023 as managed runtimes and container imagesDeprecation
Supports custom Durable Execution SDKs, with open-source conformance tests for validation
C# SDK for building long-running workflows with Lambda durable functions, with local emulatorGA
Supports AWS KMS customer managed keys for encrypting durable execution data
May 20262
April 20265
Ruby 4.0 supported as managed runtime and container base image in all RegionsGA
Expanded to 16 more Regions, including Cape Town, London, Seoul and São PauloRegion
Functions can mount S3 buckets as file systems and share data across functions
SDK for building durable functions in Java 17+, with local testing emulatorGA
Available in all commercial Regions, with payloads up to 200 MB by default
March 20264
Supports up to 32 GB memory, 16 vCPUs and 2:1, 4:1 or 8:1 memory-to-vCPU ratios
Metadata endpoint returns the AZ ID a function runs in, at no extra costGA
Adds Rust support, including parallel request processing within each execution environment
Gives Kiro's AI agent guidance for building durable functions locally