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Dev · Saturday, 15 August 2026 · Issue 77 · 13 stories

CSS gets diagonal scrolling, Google open-sources C2PA validator

Languages & Frameworks

Custom Highlight API, Text‑Stroke Fix, and Diagonal Scrolling Land in CSS

Chrome, Firefox, and Safari now support the CSS Custom Highlight API, letting you define reusable highlight styles via ::highlight(). The roundup also shows a paint‑order hack to correct text‑stroke bleed, and a new scroll‑axis‑lock property that finally enables true diagonal scrolling. These additions tighten the gap between design intent and native CSS capabilities.

css-tricks.com ↗3 min read at source

Tools & Platforms

GitHub Agent Apps Let You Scope, Secure, and Deploy Features Inside PRs

GitHub’s blog walks through a pull‑request‑centric workflow that uses four agent apps, Amplitude, Endor Labs, LaunchDarkly and PagerDuty, to answer scope, security, rollout and deployment questions without leaving GitHub. By bringing product analytics, vulnerability scanning, feature‑flag control and incident response into the PR, teams cut context‑switching and ship safer code faster.

github.blog ↗5 min read at source

AI-Assisted Development

Recall, Not Knowledge Gaps, Causes Most Fact Errors in Cutting-Edge LLMs

Google’s new knowledge‑profiling framework shows that Gemini 3, GPT‑5 and similar frontier models store the vast majority of facts but fail to retrieve them, turning factual errors into ‘lost‑key’ problems. By classifying facts into encoding, recall and reasoning categories, the study points to post‑training retrieval tricks as the next lever for improving LLM reliability.

research.google ↗6 min read at source

Codex‑driven auto‑research slashes QR kernel time 232×

In GPU Mode’s auto‑research contest, I used OpenAI Codex to generate a batched Householder QR factorization kernel that outperformed the baseline by 232×. The workflow combined automated code synthesis, iterative prompting, and targeted profiling, turning what was a research‑grade bottleneck into a production‑ready speedup.

sankalp.bearblog.dev ↗12 min read at source

Engineering Practice

Why Writing a Blog Makes You Learn Faster (and Think Clearer)

The author treats every post as a research experiment: if writing doesn’t teach him something new, he discards it. By insisting each article defends a controversial stance, he forces deep research and clearer thinking, turning blogging into a powerful learning tool for engineers and anyone who wants to sharpen their understanding.

seangoedecke.com ↗7 min read at source

You’re caught up.

That was all 13 stories in the 15 August issue.