Framework
The server-side JavaScript runtime built on V8, and the platform most JavaScript build, test and package tooling executes on.
Cloudflare is acquiring the Deno team, with one year of bug and security fixes committed for the runtime. Anyone building on Deno now has to choose between migrating and backing a community fork.
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AWS Lambda Web Functions let an ordinary Node.js HTTP server run on Lambda, listening on the port in AWS_LAMBDA_HTTP_ENDPOINT, a DEV Community post says. The author says it does not replace event-handler Lambdas and tested it with a streaming agent and simulated high-traffic services.
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Next.js 15 leaves Maintenance LTS on 21 October 2026, ending its scheduled critical bug fixes and security patches. A dev.to upgrade guide lists Next.js 16 defaults that compile cleanly and still change what users see, including image caching and route-change scrolling.
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AWS Lambda Web Functions run a Hono server without an adapter and allow 128 concurrent requests per environment, a dev.to guide says. Billing, concurrency and endpoint auth differ from Event Functions, so fit needs a check before a backend moves.
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AWS Lambda now runs port-listening HTTP servers such as Express and Fastify, with up to 128 concurrent requests per environment. Billing moves to CPU time used, while memory is metered for the life of the environment.
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Deno's entire team is joining Cloudflare and taking celld, its open-source implementation of Workers and Durable Objects, along with it. For teams on Workers, the code they would use to leave now comes from the company they would be leaving.
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CDK grants CloudFront only one of the two permissions a locked-down Lambda function URL needs, according to an October 2026 update to a dev.to tutorial. The update also moves new functions to Node.js 24, as nodejs20.x lost security patches on 30 April 2026.
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Lexical 0.51 ships its npm packages as ESM-only and warns that anything deprecated will be removed soon. The module change mostly hits CommonJS code that loads Lexical without a bundler, while the removal warning gives the remaining migrations a window of a few monthly releases.
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Ink 8, the React library for command-line interfaces, requires React 19.3 or later and adds Box props for building scrollable terminal views. Teams running tools on an older React have to move React first, then recheck how their tools handle input and how they type their output streams.
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Electron Forge 8 flags six breaking changes, including a move to Node 22 and ESM and the removal of global module templates. Its npm trusted publishing entry concerns how maintainers ship Forge, so app teams' work lands in their runtime and config.
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CVE-2026-6951 reopens remote code execution in simple-git, a library downloaded 8.7 million times a week, by respelling the blocked -c flag as --config. The 2022 patch never checked the long form, so the same attack works wherever untrusted input reaches a git call.
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Attackers hid the malware trigger in the indexed-btree npm package inside a library method, sidestepping the install-script block npm 12 shipped in July. Install-time checks, including a look at package.json for hooks, pass a package that runs its payload on first use.
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Vercel Labs' experimental ScriptC compiles TypeScript to native binaries that started in 1.78ms against Node's 61.78ms in one benchmark. The gain holds for short, statically typed programs, while framework code and sustained compute both ran slower than Bun or Node.
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DeepSeek released its open-source Harness agent runtime as a Windows and macOS desktop app on September 30, so users no longer need a command line to run it. The agent edits local files and runs commands, so what each user exposes to it decides what it can touch and which provider sees it.
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Next.js's bundled http-proxy 1.18.1 stamps Content-Length: 0 on chunked DELETE and OPTIONS rewrites, so a hidden second request reaches the backend. Whether it reaches anything sensitive depends on how the next hop frames requests and which internal routes the backend opens to its proxy.
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OpenAI patched two Codex sandbox escapes within eight days of an August 12 report. The Desktop fix is a build number, but the tool the escape targeted stays in config.toml and loads into every session.
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vm2's maintainer patched a CVSS 9.5 flaw in 3.12.2 where the module allowlist matched an approved path as a bare prefix and cleared a neighboring package. With NodeVM's default host context, the unapproved sibling ran with full Node authority.
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Google, Anthropic and OpenAI shipped four model releases in 12 days, and each one's own docs list ways that code written for the earlier version now fails. A swap of the model ID is a dependency upgrade and needs contract tests at the provider boundary before it ships.
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Shane Friedman released version 1.0.0 of Storyteller's EPUB library on October 1, adding browser reads, EPUB 2-to-3 upgrades and a namespace-aware DOM. Teams building EPUB tools can now use code shaped by one product's needs, though adoption beyond Storyteller is unproven.
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SvelteKit 3.0 requires Node 22.17, TypeScript 6 and Svelte 5.56.4 or newer before any app code changes. Teams have a toolchain project to schedule and ship before they reach the config move and the rewrite of every $lib import.
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Security · September 23, 2026 · Confirmed2 publishers
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Security · September 21, 2026 · Confirmed2 publishers