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Plans change - and your on-call schedule should be able to change with them. With SIGNL4, you can quickly arrange shift coverage from your smartphone, so your team stays fully staffed while everyone knows exactly who's on duty. Whether it's a World Cup match, a family event, or any other last-minute plan, SIGNL4 helps you manage stand-ins and shift handovers without phone calls, spreadsheets, or confusion.

I gave myself five prompts each to build the same app in Claude using Opus 4.8, and Codex using GPT 5.5. The results were NOT what I was expecting! See which agent built the better app, which one stumbled massively, and look at the actual numbers behind these coding agents.

Andrea Griffiths is a Senior Developer Advocate at GitHub. She uses Sentry to monitor the Python scripts behind GitHub’s community streams, because when those pipelines fail, nobody knows until users start complaining. GitHub and Sentry built a loop that fixes that. Sentry catches the error, Seer diagnoses it, and Copilot drafts the fix. No one has to be in the middle of it. In this session, Paul Jaffre (Developer Experience at Sentry) breaks down what Seer is, then he and Andrea break a real script live and watch the loop catch it, diagnose it, and open the fix as a pull request.

See what your users see. Don't try and guess what happened, watch it. Session Replay is a feature for Mobile and Web apps on Sentry to record user sessions as reproducible sessions. These are not videos. On web, a session replay contains the entire DOM reconstruction and DevTools. It's exactly like inspecting in Chrome DevTools locally on your machine, but in a real production session.

Cortex co-founder and CTO Ganesh Datta sits down with Dr. Martin Nettling, Senior Director of Engineering and Head of QA at Tealium, to explore the distinction between trusting people and having confidence in tools, and why that difference matters as AI becomes part of every engineering workflow.