For nearly a decade, executing JVM and .NET serverless architectures inherently required accepting terrifyingly high multi-second cold-start initialization times. By deploying Firecracker MicroVM snapshotting arrays, AWS Lambda SnapStart fundamentally eliminates these bottlenecks instantly restoring memory. Here is a thorough practitioner guide navigating state constraints, securing CRaC hook workflows, and defeating broken deterministic UUIDs.
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The 2026 AWS Serverless Stack: Managed Instances, SQS Provisioned Mode, and the End of 256 KB Limits
Four platform releases from re:Invent 2025 and Q1 2026 complete the enterprise AWS serverless stack: Lambda Managed Instances with GPU support, SQS Provisioned Mode ESM for instant burst scaling, 1 MB async payload expansion, and .NET 10 / Node.js 24 runtimes with Native AOT.
Read more →AWS Lambda Tenant Isolation Mode: Enterprise Multi-Tenant SaaS Security Without Complexity
Lambda Tenant Isolation Mode delivers dedicated Firecracker MicroVM isolation per tenant from a single Lambda function deployment. A complete guide covering implementation, tiered SaaS architecture, cold start management, per-tenant KMS keys, and HIPAA/PCI-DSS/SOC 2 compliance mapping.
Read more →AWS Lambda Durable Functions: Building Reliable Stateful Workflows Without Step Functions
Lambda Durable Functions (re:Invent 2025) introduces checkpoint-and-replay stateful execution directly in Lambda. A deep technical dive into steps, waits, AI agent pipelines, error handling, cost modelling, and when to choose Durable Functions over AWS Step Functions.
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