●PLAY — Google Play's target API level 36 requirement took effect yesterday, August 31. From today, new apps and updates must target Android 16●VISIBILITY — Apps still on API 35 stay listed but disappear for users on newer Android versions. No error is raised; new installs simply fade, which makes the change easy to miss●EXTENSION — If you missed the deadline, an extension through November 1, 2026 can be requested in Play Console — best filed alongside a concrete migration plan●APPLE — On the Apple side, the event lands September 9 and iOS 27 is reported to ship September 14. Testing generated apps on iOS 27 hardware before release week is time well spent●EXPO — Expo released expo-paste-input on August 28, a native module that brings image, GIF, and sticker paste to React Native TextInput●EAS — EAS Observe reached general availability on August 20, putting crash and performance monitoring on the same EAS platform as builds and updates●PLAY — Google Play's target API level 36 requirement took effect yesterday, August 31. From today, new apps and updates must target Android 16●VISIBILITY — Apps still on API 35 stay listed but disappear for users on newer Android versions. No error is raised; new installs simply fade, which makes the change easy to miss●EXTENSION — If you missed the deadline, an extension through November 1, 2026 can be requested in Play Console — best filed alongside a concrete migration plan●APPLE — On the Apple side, the event lands September 9 and iOS 27 is reported to ship September 14. Testing generated apps on iOS 27 hardware before release week is time well spent●EXPO — Expo released expo-paste-input on August 28, a native module that brings image, GIF, and sticker paste to React Native TextInput●EAS — EAS Observe reached general availability on August 20, putting crash and performance monitoring on the same EAS platform as builds and updates

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Expo² asset delivery¹ wallpaper apps¹ operations¹ Rork¹ image formats¹ AVIF¹

◇ App Dev/2026-08-24Advanced

I Moved the Thumbnails Assuming the Shipped Build Would Keep Asking for the Old Path

Reorganizing image directories on the server does not reach the builds already installed on people's phones. Here is the two-way fallback that returns 200 for both the old and new paths, the ordering rule for images versus catalog, and the four checks I run through a CDN before calling a release live.

⬡ Rork Dev/2026-07-15Advanced

Half the Bytes, the Same Wait: What AVIF Actually Cost My Wallpaper Apps

Switching to AVIF cut my transfer bill in half and did nothing for perceived speed. Here is the transfer-versus-decode breakdown, the Accept-negotiation trade-off, per-device fallback tiers, and the staged migration order that finally worked across six apps.