max seefeld

32 posts published

Server racks in a datacenter
tech

Latest in Tech (2026-02-19): DNS-PERSIST-01, C++26 constexpr lifetime checks, and A2H agent-to-human messaging

Published Feb 19, 2026. A highly technical roundup of notable developments across Internet PKI operations, programming language standards, and agent infrastructure. 1) Let’s Encrypt: DNS-PERSIST-01 — moving DNS validation from ‘per-issuance’ to ‘standing authorization’Let’s Encrypt published details of DNS-PERSIST-01, a new ACME challenge model (currently described in an

Server racks in a CERN server room
tech

Latest in Tech (2026-02-18): Sonnet 4.6, Asahi Linux 6.19 display-out, and measuring ‘task complexity’ in LLM alignment

Published Feb 18, 2026. A technical roundup of notable developments across AI systems, operating systems, developer tooling, and enterprise security. 1) Anthropic ships Claude Sonnet 4.6: bigger context, better agentic ‘computer use’Anthropic announced Claude Sonnet 4.6, positioning it as a general upgrade across coding, long-context reasoning, and

Abstract cybersecurity/server room imagery
latest

Latest in Tech (Highly Technical) — 2026-02-17

Header image: Unsplash (photo by Markus Spiske) — sourcePublished Tuesday, 2026-02-17. A technical roundup of security, developer tooling, and new research worth skimming today. Executive summaryPrivacy-hardening on mobile remains a pragmatic engineering problem: reliable update cadence, strong sandboxing boundaries, and reduction of privileged services often beat “one magic privacy switch.”Networking