Rough week at GitHub:

• GitHub publishes RSA SSH host keys by mistake, issues update
• GitHub's User Content certificate has expired

AWS:

• Amazon GuardDuty simplified "one-click" enforcement of threat detection across all accounts in an Organization
• Application Load Balancer now supports TLS 1.3
• AWS Copilot adds support for full customization with AWS CDK or YAML overrides

• Announcing the end of support for Node.js 12.x in the AWS SDK for JavaScript (v3)
• Amazon Linux 2023 (AL2023)
• Use Amazon S3 Object Lambda to modify S3 GET, HEAD, LIST