As AI Writes and Reviews Code, the Traditional Pull Request Model Faces Collapse

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The rise of large language models and autonomous coding agents is fundamentally disrupting the pull request (PR) workflow that has long governed software development. Traditionally, PRs served three roles: quality control, knowledge transfer, and establishing team ownership of code. When AI both generates and reviews code, a verification paradox emerges — two models trained on similar data may reinforce each other's blind spots rather than catch meaningful errors. The loss of human narrative in code reviews also threatens institutional memory, as AI agents make probabilistic choices with no documented reasoning behind them. Industry analysts are now calling for a new paradigm based on semantic verification and property-based contract testing to address these gaps.

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Gym Tops Loggd's 2026 Habit List, But Most Users Quit Within Days

A 2026 analysis of over 6,700 habits tracked by more than 3,600 users on the Loggd app reveals that fitness-related habits — including going to the gym, exercising, and walking 10,000 steps — are the most popular, followed by hydration, reading, and meditation. However, high tracking numbers are misleading, as most habits never reach even a two-day streak, with 'go to the gym' holding the top spot alongside one of the shortest average streaks on the platform. Eight of the top ten habits appear as one-tap suggestions in Loggd's onboarding flow, meaning app design heavily influences what users choose to track. The standout exception is GitHub activity, which ranks fifth and auto-logs from a developer's commit history — making it one of the few habits that effectively tracks itself. The data highlights a significant gap between the habits people intend to build and those they actually sustain over time.

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ProgrammingDEV Community ·

Laravel Releases Official Passkeys Stack to Enable Password-Free Authentication

Laravel has launched first-party support for passkeys through two packages: the backend library laravel/passkeys and the frontend companion @laravel/passkeys for browsers. The stack implements the WebAuthn cryptographic standard, allowing users to authenticate via biometrics, PINs, or physical security keys instead of passwords. During registration, a key pair is generated on the user's device, with only the public key stored on the server, meaning passwords and biometric data never leave the device. Developers can integrate the packages via Composer and NPM, with native support available for projects using Laravel Fortify or Jetstream. The release aims to address common password-based attack vectors such as phishing and credential stuffing by eliminating server-side password storage entirely.

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ProgrammingDEV Community ·

How QUIC and HTTP/3 Are Replacing TCP to Fix Web Performance Bottlenecks

TCP, the internet transport protocol in use for over 40 years, suffers from a flaw called Head-of-Line Blocking, where a single lost data packet stalls all subsequent data on a connection. Google began developing QUIC in 2013 as an internal project to address this limitation, and it later became the foundation of the HTTP/3 standard. Unlike TCP, QUIC runs over UDP and implements its own stream-level multiplexing, meaning a lost packet in one stream does not block others. QUIC also embeds TLS 1.3 encryption natively, eliminating a separate handshake step and reducing connection setup time compared to HTTP/2 over TCP. Today all major browsers and web servers support HTTP/3, though many developers and administrators remain unfamiliar with the technical changes and new considerations it introduces.

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ProgrammingDEV Community ·

Missing Level 3 card data cost a B2B marketplace 180bps in extra fees

A B2B marketplace discovered its payment integration was submitting only basic Level 1 card data — cardholder number, amount, and date — instead of the richer Level 2/3 fields required for lower interchange rates on commercial cards. Without fields like tax amount, PO number, and line-item details such as SKU and commodity codes, every affected transaction was automatically downgraded to the standard commercial interchange rate. The gap proved costly: transactions with full Level 3 data settled at roughly 1.8% effective rate, while those without it settled near 3.6% — a difference of about 180 basis points on six-figure monthly volume. The issue was resolved by making tax amount and PO number mandatory before authorization and pulling existing line-item data from the order database. The effective rate on new transactions fell within a single billing cycle after the fix was applied.

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