Python Workers now feature improved cold start performance, reducing initialization time for new Worker instances. This improvement is particularly noticeable for Workers with larger dependency sets or complex initialization logic. Every time you deploy a Python Worker, a memory snapshot…

We are introducing a brand new tool called Pywrangler, which simplifies package management in Python Workers by automatically installing Workers-compatible Python packages into your project. With Pywrangler, you specify your Worker's Python dependencies in your pyproject.toml file: [project]name = "python-beautifulsoup-worker"version…

We are increasing the maximum request-payload size the WAF inspects to 1 MB across all plans. This enhancement strengthens our detection capabilities for React RCE (CVE-2025-55182) by ensuring the WAF can fully analyse React payloads up to their standard maximum…

Workers applications now use reusable Cloudflare Access policies to reduce duplication and simplify access management across multiple Workers. Previously, enabling Cloudflare Access on a Worker created per-application policies, unique to each application. Now, we create reusable policies that can be…

You can now connect directly to remote databases and databases requiring TLS with wrangler dev. This lets you run your Worker code locally while connecting to remote databases, without needing to use wrangler dev --remote. The localConnectionString field and CLOUDFLARE_HYPERDRIVE_LOCAL_CONNECTION_STRING_<BINDING_NAME>…

The WAF rule deployed yesterday to block unsafe deserialization-based RCE has been updated. The rule description now reads “React – RCE – CVE-2025-55182”, explicitly mapping to the recently disclosed React Server Components vulnerability. Detection logic remains unchanged. Key Findings Rule…