# Shipping Safer Container Runtimes in 2026

URL: https://edu.chainguard.dev/software-security/learning-labs/ll202512.md
Last Modified: December 17, 2025
Tags: Learning Labs, Chainguard Containers

Learning Lab for December 2025 on strategies to secure your software supply chain and ship safer containerized runtimes in 2026

The December 2025 Learning Lab with Erika Heidi focuses on strategies to improve the security of your software supply chain and ship safer container runtimes in 2026.
Sections 00:00 Intro 02:52 Why Devs need to care 04:48 XZ Utils incident 09:43 tj-actions/changed-files incident 12:42 Sha1-Hulud Second Coming 17:11 Trending threat models 32:42 Mitigating risks 45:02 Concrete Dev actions this sprint 50:47 Chainguard Containers: CVE Comparisons Resources Slide deck Chainguard Containers Overview Chainguard Libraries Overview Migrating to Chainguard Containers How to Use Container Image Digests to Improve Reproducibility Keep your Chainguard Containers Up to Date with digestabot Using Renovate with Chainguard Containers Images Directory