Advisories
Apple Unveils iOS 26.5 RC 2 (23F77) – New Features, Bug Fixes, and Security Enhancements for Developers
Apple has released the second release candidate of iOS 26.5 (code‑named 23F77) to the developer community. The update delivers performance tweaks, battery‑life improvements, and a suite of security patches, along with new APIs and bug fixes for app developers. Still in the RC phase, the build is available via TestFlight and Xcode, giving developers early access to the next generation of iOS before the final public rollout.
Apple’s latest iOS 26.5 RC 2 (23F77) is now available to developers through the Apple Developer portal. This second release candidate brings a range of refinements that set the stage for the upcoming public release.
Key Highlights
- Performance & Battery Optimizations – Targeted improvements to app launch times and background task handling that reduce power draw.
- Security Enhancements – Updated kernel modules and tightened sandboxing rules to close recent CVEs.
- Developer‑Facing API Updates – New SwiftUI components and updated VisionOS frameworks for richer user experiences.
- Bug Fixes – Resolved crashes in Safari, Apple Maps, and several high‑profile third‑party apps.
- TestFlight Ready – Full OTA build available for beta testing, enabling early feedback on new features.
"We’re excited to share iOS 26.5 RC 2 with the developer community. It’s packed with improvements that will help apps run smoother, stay secure, and take advantage of the latest hardware capabilities," said an Apple engineering lead.
Developers can download the RC via Xcode’s “Download Additional Simulators” or through the dedicated TestFlight link on the developer site. Apple encourages feedback on any regressions or new issues discovered during beta testing, as these insights will shape the final release.
With RC 2 now out, the final iOS 26.5 build is slated for a public release later this quarter, promising a polished, secure, and feature‑rich experience for all iOS users.
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