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<h2>Must know</h2>
<ul>
<li><strong>ESLint v10 kills the legacy config system</strong>: ESLint v10 has officially arrived, finalizing the transition to the flat configuration system and completely removing the legacy eslintrc format. According to InfoQ, this release also improves JSX tracking to eliminate false positives for unused variables and narrows Node.js support to versions 20.19, 22.13, or 24 and higher. Developers can use the provided migration tool, but should be aware of ongoing compatibility issues with the Next.js and React plugins. <a href="https://app.daily.dev/feed-by-ids?id=mUQYDCCwu&amp;id=0nMeO5aZx" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>GitHub slashes React diff lag by 78 percent</strong>: GitHub’s engineering team successfully optimized the Files Changed tab by refactoring React diff-line components, reducing the component count per line from eight down to two. By adopting O(1) data lookups and window virtualization via TanStack Virtual, they achieved a 78% improvement in Interaction to Next Paint (INP) for large pull requests. The GitHub Blog reports that these changes also slashed memory usage by 50%, preventing the 1GB heap spikes previously seen on 10,000-line diffs. <a href="https://app.daily.dev/posts/DMKgp6Vib" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Chrome enables concurrent and nested view transitions</strong>: Chrome 147 has introduced element-scoped view transitions, allowing developers to trigger animations on specific DOM subtrees rather than the entire document. This update enables multiple transitions to run concurrently and supports nesting, which fixes long-standing layering issues with fixed-position content. Chrome Developers noted that the feature also includes automatic containment for nested pseudo-elements to keep the rest of the page interactive during transitions. <a href="https://app.daily.dev/posts/upDe1yfse" target="_blank" rel="noopener nofollow">Read more</a></li>
</ul>
<h2>Good to know</h2>
<ul>
<li><strong>Clerk auth expands free tier to 50k users</strong>: Clerk Core 3 introduces a new interactive theme editor and unlimited applications across all paid plans. <a href="https://app.daily.dev/posts/B73gISWRG" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Vaadin CSS optimizations yield 7x faster rendering</strong>: Vaadin 25.1 reduces initial grid render times from 7 seconds to 1 second by replacing box shadows with borders and using the Houdini API. <a href="https://app.daily.dev/posts/pdzzSgLnD" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>WebGPU standard arrives for React Native</strong>: React Native WebGPU now enables direct GPU access via Metal and Vulkan for high-performance on-device ML and 3D physics. <a href="https://app.daily.dev/posts/PszBtntIw" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Docusaurus moves to Rspack for stable builds</strong>: Docusaurus 3.10 stabilizes its ‘Faster’ infrastructure using Rspack and LightningCSS, which will be the default in version 4. <a href="https://app.daily.dev/posts/jJ6FZ3fB4" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Avalonia mobile support enters preview</strong>: Avalonia UI has expanded its cross-platform reach with early preview support for iOS, Android, and mobile browsers. <a href="https://app.daily.dev/posts/LUfOXji6m" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Node.js 25.9 updates test runner and crypto</strong>: Node.js 25.9.0 consolidates the test runner’s module mocking API and adds support for TurboSHAKE cryptography. <a href="https://app.daily.dev/posts/kSjKYf85g" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Safari 26.4 ships native component scoping</strong>: The new CSS name-only containers in Safari 26.4 allow for native component-level style isolation without BEM or build tools. <a href="https://app.daily.dev/posts/TgjSCvCtK" target="_blank" rel="noopener nofollow">Read more</a></li>
</ul>
<h2>Bullshit police</h2>
<ul>
<li><strong>Nvidia DLSS 5 is just generative aesthetic slop</strong>: Nvidia is pitching DLSS 5 as a ‘generative AI pass’ that essentially overlays an uncanny AI filter on top of your game instead of actually improving performance. Critics at various outlets have already labeled it ‘AI slop’ because it requires two RTX 5090s just to run the tech demo while flattening the original art direction. It’s a bold move to solve a performance problem by requiring $4,000 worth of GPUs to generate a generic aesthetic. <a href="https://app.daily.dev/posts/DEi4SGu0w" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>Microsoft Copilot is legally just a toy</strong>: Microsoft’s Copilot terms of use still include a disclaimer stating the tool is ‘for entertainment purposes only,’ despite the company spending billions to market it as a critical enterprise workmate. As noted by Ask Hackaday, this creates a massive gap between the ‘AI will do your job’ marketing hype and the ‘don’t sue us when it fails’ legal reality. It’s essentially a high-priced Magic 8 Ball that occasionally writes Python. <a href="https://app.daily.dev/feed-by-ids?id=QPAxbn9Aj&amp;id=chPbgLDu0" target="_blank" rel="noopener nofollow">Read more</a></li>
<li><strong>The vibe coding productivity illusion</strong>: The ‘vibe coding’ trend—where developers blindly commit AI-generated code without review—is hitting a wall as teams realize they are just ‘DDoS-ing’ their own brains with technical debt. Opinion pieces are finally calling out the ‘illusion’ of productivity, noting that while you might ship 10x more code, you’re spending 11x more time as a ‘hyper-vigilant proofreader’ for machine-generated bugs. We’ve traded the joy of building for the misery of auditing spaghetti code. <a href="https://app.daily.dev/feed-by-ids?id=0NLiScdCr&amp;id=PZTz90uCk" target="_blank" rel="noopener nofollow">Read more</a></li>
</ul>
