The state of preview deployments
Theo Marchetti · · 1 min read
In nine months teams opened 2.3 million preview URLs. Here is what they reviewed, what they ignored, and what that says about shipping.
September 2026
The Kestrel bug bounty program is now public
Jonas Vehko · · 1 min read
After two years as an invite-only program, anyone can now report vulnerabilities in Kestrel and our open source frameworks.
Workers are the fastest-adopted runtime in Kestrel history
Ines Okafor · · 1 min read
Background workers reached 10,000 projects in six weeks. What people are using them for surprised us.
Reproducing, disclosing and fixing an image-decoder vulnerability with the maintainers
Karim Osei · · 1 min read
A remote code execution bug in an upstream image decoder was reachable through image optimization. Here's the timeline of how we fixed it with the maintainers.
How Delphine ships 100 times a day with a Python backend
Priya Raman · · 1 min read
Delphine moved a Django monolith onto Kestrel functions without rewriting it.
How Meshwork built a customer-facing model router on the gateway
Jonas Vehko · · 1 min read
Meshwork routes each request to the cheapest model that meets its quality bar.
How Pressroom's users send 100K media pitches a month
Theo Marchetti · · 1 min read
A two-person team scaled a PR tool to 100,000 pitches a month on queues and cron.