5 PM Technology News Recap: Pentagon Freezers, Mistral Large 4, OpenAI Model Spec, GitHub Webhooks, and Mendix SAML (October 29, 2026)

Thursday’s five-story technology recap covers a suspected cyber incident involving military-base freezers, Mistral Large 4 weights, OpenAI’s updated Model Spec, GitHub webhook IP ranges, and a Mendix SAML replay flaw.









