- Introduced host kernel selection to choose Amazon Linux 2023 (kernel 6) or Amazon Linux 2 (kernel 4) for on‑demand CodeBuild builds.
- Enables validation on new or non‑production projects while existing production builds continue unchanged.
- Feature available in all CodeBuild regions except GovCloud (US) and China, which only support Amazon Linux 2023.
AWS CodeBuild now supports Amazon Linux 2023 for on-demand build hosts
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