Your Guide to iOS 26.5 and iPadOS 26.5 Release Candidate 2: What’s New and How to Install

Overview

Apple has recently seeded a second round of release candidate (RC) builds for iOS 26.5 and iPadOS 26.5. These RC builds, designated as build number 23F77, replace the earlier RC build (23F75) released on May 4. Release candidates are typically the final versions Apple ships publicly unless major bugs force additional last-minute revisions. This second RC arrives one week after the fourth beta and includes a smaller round of fixes and feature additions, signaling that the public release is imminent. The new builds tighten the final release, ensuring stability and performance before the official rollout. For developers and testers, installing the RC build helps verify app compatibility and provides a preview of what’s coming.

Prerequisites

Before you begin the installation process, ensure you have the following:

• Apple Developer Account: You must be enrolled in the Apple Developer Program (paid or free for beta access). Visit developer.apple.com to sign up if needed.
• Compatible Device: Check that your iPhone, iPad, or iPod touch supports iOS 26.5 or iPadOS 26.5. Typically, devices that ran the previous betas are compatible.
• Backup: Always perform a full backup of your device via iCloud or your computer before installing any beta or RC software. This protects your data in case you need to revert.
• Sufficient Battery and Storage: Ensure your device has at least 50% battery charge and enough free storage space (at least 2–3 GB) for the update.
• Stable Internet Connection: A reliable Wi-Fi connection is recommended to download the update files.

Step-by-Step Installation Instructions

Follow these steps to install the iOS 26.5 / iPadOS 26.5 RC 2 build on your developer‑enrolled device. If you’re already on a previous beta, you can update directly.

Step 1: Enroll in the Apple Developer Program

If you haven’t already, go to developer.apple.com/programs/ and enroll. You’ll need to agree to the license agreements and pay the annual fee (if applicable). Once enrolled, you can access beta software.

Step 2: Log in to the Developer Portal and Download the Configuration Profile

Open Safari on your iOS/iPadOS device (or use your computer to download the profile and transfer it). Navigate to developer.apple.com/download/ and log in with your Apple ID. Find the iOS 26.5 beta or iPadOS 26.5 beta section and download the configuration profile for the RC build. The profile enables your device to receive OTA (Over‑the‑Air) updates.

Step 3: Install the Configuration Profile

After downloading, go to Settings > General > VPN & Device Management (or Profiles on older iOS versions). Tap the newly downloaded profile and tap Install. Follow the on‑screen prompts, entering your passcode if required. You may need to restart your device.

Step 4: Check for the Update via Settings

Once the profile is installed and your device is restarted, go to Settings > General > Software Update. The iOS 26.5 RC 2 build (23F77) should appear. Tap Download and Install.

Step 5: Back Up Your Data (Crucial)

Before the installation begins, take a moment to back up your device. Use iCloud Backup (Settings > [Your Name] > iCloud > iCloud Backup > Back Up Now) or connect to your computer and back up via Finder (macOS Catalina or later) or iTunes (Windows or older macOS). This ensures you can restore your data if something goes wrong.

Step 6: Install the RC Build

After backing up, proceed with the OTA update. The download size is typically around 300–500 MB depending on your device. Ensure your device is plugged into power and connected to Wi‑Fi. Once downloaded, tap Install Now. Your device will restart and apply the update. Wait for the Apple logo and progress bar to complete; this may take 10–20 minutes. After the update, you’ll see the “Hello” screen and can set up your device normally.

Common Mistakes and How to Avoid Them

• Skipping the Backup: Not backing up is the most frequent error. Always create a fresh backup before installing an RC build. If you need to downgrade later, you’ll lose unsaved data.
• Using the Wrong Profile: Ensure you download the profile for the correct RC build (23F77) and not an older beta profile. An outdated profile may not show the update.
• Ignoring Battery and Storage: A low battery or full storage can cause the update to fail. Verify you have at least 50% charge and 2–3 GB free space.
• Installing on a Primary Device Unnecessarily: RC builds are stable, but they may still have bugs. Install on a secondary device if possible, or be prepared to restore.
• Forgetting to Remove Old Beta Profiles: If you had a previous beta profile, remove it before installing the RC profile? Actually, you need the proper profile. Remove any outdated profiles to avoid conflicts.
• Overlooking the Build Number: The RC 2 build is 23F77, not 23F75. Double‑check that you’re installing the correct version.

Summary

The second release candidate of iOS 26.5 and iPadOS 26.5 (build 23F77) marks a near‑final iteration of Apple’s upcoming software updates. With a smaller set of fixes and feature refinements, this RC is likely the final version before public release. By following the step‑by‑step installation guide above, developers and testers can safely install the update on enrolled devices. Remember the prerequisites, always back up, and avoid common pitfalls like skipping backups or using incorrect profiles. For the latest information, continue reading on AppleInsider or discuss on our forums.