"Deno has allowed us to transition services faster without sacrificing reliability," says Plaid architecture lead Zander Hill.

Here's how they did it

https://deno.com/blog/how-plaid-migrated-critical-services-with-deno

How to automatically associate console logs by request with @opentelemetry and Hyperdx

https://docs.deno.com/examples/hyperdx_tutorial/

How send @opentelemetry data from your #Deno (or #NodeJS) app to @honeycombio
https://docs.deno.com/examples/honeycomb_tutorial/

Deno v2.2.10 is out
Faster deno install with npm
improved node:test
stream and querystring fixes
virtio VSOCK on Linux
and more!

https://github.com/denoland/deno/releases/tag/v2.2.10

Traces can show:
- which code triggered an operation
- what happened
- when it happened, and
- how long it took

Here's how you can make your traces include all child operations to simplify debugging

Simplify debugging with Deno and @opentelemetry
logs associated with requests
immediate traces and metrics
works on Node.js backends
without any additional code or config

https://deno.com/blog/zero-config-debugging-deno-opentelemetry

Node Just Added TypeScript Support. What Does That Mean for Deno?, by @tinyclouds.org (@deno_land):

https://deno.com/blog/typescript-in-node-vs-deno

Data analysis in Jupyter notebooks with... TypeScript?!
using `fetch` and other web standards
fast dataframes with nodejs-polars
easy charts with @observablehq
rich interactive UIs with JavaScript

Learn more in this detailed walkthrough
https://deno.com/blog/exploring-art-with-typescript-and-jupyter

Just landed a new manual page on Deno's FFI

https://docs.deno.com/runtime/fundamentals/ffi/

Want your own custom AI thats trained on confidential material?

Here's how you can build a custom RAG AI agent

https://deno.com/blog/build-custom-rag-ai-agent

Deno v2.2.4 is released:

- Built-in OpenTelemetry support for span context propagators (tracecontext, baggage)
- Built-in OTel tracing for node:http.request
- LSP now starts the TypeScript server lazily

other improvements in the release notes:
https://github.com/denoland/deno/releases/tag/v2.2.4

Here's how Deno's built-in OTel support can immediately add logs and traces to any Node.js backend

https://deno.com/blog/otel-tracing-in-node-and-deno

#FreeJavaScript update: We just responded to Oracle's Motion to Dismiss our fraud claim in the JavaScript trademark cancellation.

Oracle argues submitting one valid specimen excuses submitting a fraudulent one. Our position: one legitimate submission doesn't erase another fraudulent act.

https://deno.com/blog/deno-v-oracle/20250307-oppostition-to-motion-to-dismiss.pdf

Big shoutout to Node.js for adding TypeScript

But how is it different than Deno's "first class" TypeScript support?

Here's an overview of what you can (and can't) do with TypeScript in Node and Deno.

https://deno.com/blog/typescript-in-node-vs-deno

Want to play around with LLMs in 5 minutes?

Check out this quickstart with Deno Jupyter, Ollama , and Deepseek

https://deno.com/blog/the-dino-llama-and-whale

Is there a lint rule that you've always felt was missing?

With Deno 2.2's new lint plugin system, you can write and publish your own!

For the next week, if you publish a lint rule, you'll get a free prize.

https://deno.com/blog/lint-rules-contest

Deno Tanstack
simpler state management
easier data fetching
less boilerplate

https://docs.deno.com/examples/tanstack_tutorial/

Deno 2.2 is released!
OTEL, node:sqlite, linter plugins, and much more

https://deno.com/blog/v2.2

Heard of Deno but haven't had the time to try it out?

Join Jo Frank at TheJam.dev
where she'll give an introduction to the runtime and its built in tooling to make your developer experience delightful.

Tickets are free, so what are you waiting for?

https://cfe.dev/events/the-jam-2025/