Best of Cloudflare — December 2025

  1. 1
    Article
    Avatar of svelteSvelte Blog·21w

    What’s new in Svelte: January 2026

    Svelte 5.46.0 adds CSP support for hydration, the Vercel adapter now supports Node 24, and the Svelte CLI can fully configure SvelteKit projects for Cloudflare deployment. The Svelte MCP exposes tools as both JS API and CLI, while language-tools received significant performance improvements. The community showcased new apps including GCal Wrapped, Text Processing Studio, and Flumio, alongside learning resources like a complete SvelteKit course and tutorials on AI code generation with Svelte 5.

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    Article
    Avatar of infoqInfoQ·21w

    Cloudflare Open Sources tokio‑quiche, Promising Easier QUIC and HTTP/3 in Rust

    Cloudflare released tokio-quiche, an open-source Rust library that wraps their quiche QUIC/HTTP/3 implementation with Tokio's async runtime. The library simplifies building high-performance QUIC applications by handling UDP I/O, connection management, and event loops automatically. It uses an actor model internally and exposes an ApplicationOverQuic trait for protocol abstraction. Cloudflare uses it in production for edge services, HTTP proxies, and MASQUE-based tunnels in their WARP client, handling millions of requests per second. The library is available on crates.io as a foundational building block, with plans to release higher-level HTTP client/server abstractions.

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    Article
    Avatar of cloudflareCloudflare·24w

    Python Workers redux: fast cold starts, packages, and a uv-first workflow

    Cloudflare Python Workers now support any Pyodide-compatible package with significantly faster cold starts than competitors. Using memory snapshots and WebAssembly architecture, Workers achieve 2.4x faster cold starts than AWS Lambda and 3x faster than Google Cloud Run when loading common packages. The platform integrates with uv for package management through pywrangler tooling, enabling easy deployment of Python applications globally. Technical innovations include memory snapshot restoration, careful entropy handling for randomness, and function pointer table management to eliminate Python initialization overhead during cold starts.

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    Article
    Avatar of cloudflareCloudflare·22w

    Code Orange: Fail Small — Our resilience plan following recent incidents

    Cloudflare declared "Code Orange: Fail Small" following two major outages in November and December 2025. Both incidents were caused by instantaneous global deployment of configuration changes that broke the network. The resilience plan focuses on three areas: implementing controlled rollouts for configuration changes (similar to existing software deployment processes), reviewing and improving failure modes across all systems to handle errors gracefully, and fixing break glass procedures to remove circular dependencies. The goal is to ensure configuration changes pass through testing gates before global deployment, preventing single changes from taking down the entire network.

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    Article
    Avatar of cloudflareCloudflare·25w

    Why Replicate is joining Cloudflare

    Replicate, a platform for running machine learning models as APIs, has been acquired by Cloudflare. Founded in 2019 to make research models accessible to developers through tools like Cog, Replicate became a key infrastructure provider during the Stable Diffusion era. The acquisition enables integration with Cloudflare's network infrastructure, Workers, R2, and other services to build a comprehensive AI stack. The combined platform aims to support edge model execution, instant-booting Workers for model pipelines, and WebRTC streaming for model inputs and outputs.

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    Video
    Avatar of anthonysistilliAnthony Sistilli·24w

    CEO: Cloudflare is down again? lets buy it

    A satirical dialogue depicting non-technical executives misunderstanding the scale and importance of Cloudflare after experiencing downtime. The humor centers on their naive belief that Cloudflare is a small company that could be easily acquired or replicated, despite it serving half the internet's infrastructure needs.

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