Here’s a quick list of what’s new in TypeScript 4.9! The satisfies Operator
- Unlisted Property Narrowing with the in Operator
- Checks For Equality on NaN
- File-Watching Now Uses File System Events
TypeScript is has the most advanced type system for a mainstream language.
Whisper is an automatic speech recognition (ASR) system trained on 680,000 hours of multilingual and multitask supervised data collected from the web. We show that the use of such a large and diverse dataset leads to improved robustness to accents, background noise and technical language. Moreover, it enables transcription in multiple languages, as well as translation from those languages into English. We are open-sourcing models and inference code to serve as a foundation for building useful applications and for further research on robust speech processing.
This looks fantastic.
LiteFS extends the idea of Litestream with fine-grained transactional control. Where Litestream simply copies the raw SQLite WAL file, LiteFS can inspect and ship individual transactions, which span pages, and are the true unit of change in a SQL database.
LiteFS works by interposing a very thin virtual filesystem between your app and your on-disk database file. It's not a file system like ext4, but rather a pass-through. Think of it as a file system proxy. What that proxy does is track SQLite databases to spot transactions and then LiteFS copies out those transactions to be shipped to replicas.
You see where this is going. SQLite's exquisitely documented file format makes it easy for LiteFS to replicate whole databases. Now we've got transaction boundaries. So we roll those transactions up into a simple file format we call LTX. LiteFS replicas can replay those transactions back to recreate the current (or any previous) transaction state of a LiteFS-tracked SQLite database — without touching app code. It seems like magic, but it's a natural consequence of SQLite's strong design.
We really like Fly.IO. It is an interesting company creating open source products and services with a lot of interesting ideas.
In truth, we could have called Wasmtime production-ready more than a year ago. But we didn’t want to release just any WebAssembly engine. We wanted to have a super fast and super safe WebAssembly engine. We wanted to feel really confident when we recommend that people choose Wasmtime.
So to make sure it’s production ready for all of you, a number of us in the Bytecode Alliance have been running Wasmtime in production ourselves for the past year. And Wasmtime has been doing great in these production environments, providing a stable platform while also giving us security and speed wins.
Today we are excited to talk about Pingora, a new HTTP proxy we’ve built in-house using Rust that serves over 1 trillion requests a day, boosts our performance, and enables many new features for Cloudflare customers, all while requiring only a third of the CPU and memory resources of our previous proxy infrastructure.
This thing is fast.