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TILens turns technical updates into a focused daily brief: official releases, trusted reporting, and practitioner analysis, deduplicated and organized by topic.

19 Aug 2026 edition
Go GitHub

grpc/grpc-go: Release 1.83.1

Security xds/rbac: Fix a bug where nested Principal or Permission rules with :scheme or grpc- prefixed header matchers were not rejected, which could cause DENY rules to fail open. (#9258) Special Thanks: @nvxbug…

Source: gRPC-Go Releases easwars
FastAPI GitHub Python

encode/uvicorn: Version 0.52.4

Fixed Remove duplicate Date headers from accepted WebSocket handshakes with websockets-sansio (#3078) Full Changelog: 0.52.3...0.52.4

Source: Uvicorn Releases Kludex
Rust GitHub

rust-lang/rust-analyzer: nightly

Merge pull request #23171 from A4-Tacks/skip-iter-no-intoiter minor: skip iter excludes 'into_iter' method

Source: rust-analyzer Releases github-actions[bot]
JavaScript

The Nature of Data: Why Lesan's Relationships Win in the Real World

In the last article we showed the mechanism — Lesan turns a ~2,550,250-document read into a ~25,250-document read by embedding relationships and keeping them in sync. This article answers the obvious objection: "But…

Source: DEV JavaScript feed Syd Amir
JavaScript

I Built a Drag-and-Drop Kanban Board with Vanilla JavaScript

If you've ever wanted to understand how drag-and-drop actually works under the hood — no libraries, no frameworks, just the browser — building a Kanban board is a great way to find out. Here's how I built one using…

Source: DEV JavaScript feed Praise Oluleye
JavaScript

How to benchmark scraping APIs for AI agent workloads

Your agent calls fetch() on a pricing page, gets a 200, passes the HTML to the model, and the answer is wrong. Not because the model hallucinated, but because the HTML was mostly an empty React shell, a bot challenge,…

Source: DEV JavaScript feed Anakin
JavaScript

6 AR Makeup Try-On Failures a React Storefront Hits in Production

AR makeup try-on rarely fails in the demo. It fails on the third page load, on a mid-range Android, in the Instagram in-app browser, or on a skin tone nobody on the team has. Six failure modes account for most of it:…

Source: DEV JavaScript feed Team Banuba
JavaScript

PWAs & Native Apps: How Zyctra AI Delivers Both

PWAs & Native Apps: How Zyctra AI Delivers Both The Problem: Users Want Native Speed, Developers Want Web Simplicity You're building the next generation of productivity tools. Your users demand a seamless experience…

Source: DEV JavaScript feed Zyctra AI
JavaScript

The Easiest Way to Buying Old Gmail Accounts In US

Old Gmail Accounts: Complete Guide to Security, Privacy, Organization & Safe Account Management 🌟💬 24/7 Premium Support — Always Here for You! 🤝✨ 📱💎 WhatsApp: +1 (506) 541-7768 ✈️🚀 Telegram: @usadigitalhub 🎮🔥 Discord:…

Source: DEV JavaScript feed melant
JavaScript

The Complete Guide to Push Notifications in React Native (2026)

TL;DR Use expo-notifications in 2026, even in a bare React Native workflow. CNG makes the managed/bare distinction mostly irrelevant. The token identifies a device plus install, not a user. Plan for rotation from day…

Source: DEV JavaScript feed Angel Rose
JavaScript

Why I Built 5 Developer Tools That Never Talk to a Server

Every JSON formatter, regex tester, and Base64 tool I could find online works the same way: you paste your data in, it gets sent to a server, and you get a result back. For a throwaway public snippet, that's fine. For…

Source: DEV JavaScript feed Format stack
JavaScript

How To Buying Old Gmail Accounts: A Step-by-Step Guide

Gmail is one of the most widely used email services in the world. Individuals, students, freelancers, professionals, businesses, and organizations use Gmail for personal communication, work, education, document sharing,…

Source: DEV JavaScript feed melant
JavaScript

Top 33 Sites To Buy, Old telegram Accounts In This Year

Telegram is a popular messaging platform used by individuals, professionals, creators, businesses, communities, and organizations around the world. Users can communicate through private chats, groups, channels, voice…

Source: DEV JavaScript feed melant
JavaScript

JavaScript getElementById() Function

Definition and Usage The getElementById() function returns the Element object whose HTML id attribute value matches the specified string. If no matching element exists, it returns null. Basic Example <!DOCTYPE html>…

Source: DEV JavaScript feed Youn
JavaScript

04 Steps To Buy Old Telegram Accounts In Bulk

Buy Old Telegram Accounts – Complete Guide to Telegram Security, Privacy & Account Management 🌟💬 24/7 Premium Support — Always Here for You! 🤝✨ 📱💎 WhatsApp: +1 (506) 541-7768 ✈️🚀 Telegram: @usadigitalhub 🎮🔥 Discord:…

Source: DEV JavaScript feed melant
JavaScript

Building image & video conversion that never leaves the browser

How VisualRefiner converts HEIC, compresses images, and transcodes video with no server, no upload, and no account — using the Canvas API, WebCodecs, and a little WebAssembly. Most "free online converters" work like…

Source: DEV JavaScript feed Ken Lee