Apple Ships iOS 26.5 RC With RCS Encryption Test

Apple has released the iOS / iPadOS 26.5 Release Candidate (build 23F75) to developers and public beta testers, bringing back a closely watched security feature: end-to-end encryption for RCS messages. The update, which arrived on May 5 and follows the previous beta by exactly 7 days, also introduces advertising changes to Apple Maps and the company's annual rainbow-themed Pride wallpaper for 2026.

The revival of RCS encryption testing is the headline feature, signaling Apple's renewed push to secure cross-platform messaging between iPhone and Android devices — a move that could reshape how billions of users communicate.

Key Takeaways at a Glance

• RCS end-to-end encryption returns after being pulled from iOS 26.4 beta
• Apple Maps gains a new 'Suggested Places' feature powered by trends and search history
• Maps ad placements arrive for the U.S. market through a bidding mechanism
• 2026 Pride wallpaper is included as part of Apple's annual tradition
• The RC build (23F75) typically signals a near-final public release within days
• Available through both the Apple Developer Program and Apple Beta Software Program

RCS Encryption Makes a Comeback After Mysterious Removal

The most significant development in iOS 26.5 RC is the return of RCS message end-to-end encryption testing. This feature first appeared in the iOS 26.4 beta cycle but was quietly removed before that version shipped to the public. Its reappearance suggests Apple has resolved whatever technical or policy issues prompted the initial pullback.

Rich Communication Services (RCS) replaced the aging SMS standard as the default fallback protocol for messaging between iPhone and Android devices starting with iOS 18. However, one critical gap remained: messages exchanged via RCS between Apple and Google devices lacked the end-to-end encryption that iMessage provides natively between Apple devices.

This gap meant that while iPhone-to-iPhone conversations remained fully encrypted through iMessage, any text sent to an Android user — even over the newer RCS protocol — could theoretically be intercepted. For privacy-conscious users and enterprise customers, this was a dealbreaker.

The encryption implementation Apple is testing would align with the GSMA's Universal Profile 3.0 specification, which both Apple and Google have publicly committed to supporting. Google has offered end-to-end encryption in its Messages app for RCS conversations since 2021, but the feature requires both parties to support the standard.

Why Cross-Platform Encrypted Messaging Matters Now

The timing of this feature's return is not coincidental. Regulatory pressure in both the European Union and the United States has intensified around messaging security. The EU's Digital Markets Act (DMA) has already forced Apple to open up iMessage interoperability, and encrypted RCS support would help the company demonstrate compliance while maintaining its privacy-first brand positioning.

From a competitive standpoint, apps like Signal, WhatsApp, and Telegram have long offered cross-platform encrypted messaging. Apple's lack of encrypted communication with Android users has been a persistent criticism, one that even the FBI highlighted in late 2024 when it recommended Americans use encrypted messaging apps over standard SMS and RCS.

Key implications of encrypted RCS messaging include:

• Consumer privacy: Billions of cross-platform messages would gain protection against interception
• Enterprise adoption: Businesses could rely on native messaging without third-party encryption tools
• Regulatory compliance: Helps Apple meet evolving EU and U.S. digital communication standards
• Competitive positioning: Reduces the advantage held by third-party encrypted messengers
• Carrier relations: May require cooperation from mobile operators supporting RCS infrastructure

If Apple ships this feature in the final iOS 26.5 release, it would mark one of the most consequential changes to mobile messaging security since iMessage launched in 2011.

Apple Maps Gets Ads and Smarter Suggestions

Beyond messaging, iOS 26.5 RC introduces notable changes to Apple Maps. A new 'Suggested Places' feature uses trending data and a user's search history to recommend nearby locations. This is a clear move to compete with Google Maps, which has offered personalized recommendations for years through its 'Explore' tab.

More controversially, Apple is rolling out a Maps ad bidding system for the U.S. market. This mechanism allows businesses to pay for promoted placement in Maps search results — similar to how Apple Search Ads works in the App Store. The introduction of advertising into Maps represents a significant expansion of Apple's growing Services revenue segment, which generated $26.3 billion in Q1 2025 alone.

For businesses, the Maps ad platform could offer:

• Local visibility: Small businesses can bid for prominent placement near competitors
• Intent-based targeting: Ads appear when users are actively searching for relevant categories
• Measurable ROI: Integration with Apple's ad attribution framework
• Privacy-preserving delivery: Ads served using on-device intelligence rather than cloud-based tracking

Critics will likely argue that injecting paid placements into Maps compromises the objectivity of search results. Apple will need to clearly distinguish organic results from sponsored listings to maintain user trust — a challenge Google has navigated with varying success in its own Maps product over the past decade.

Annual Pride Wallpaper Continues Apple's Tradition

In a lighter addition, iOS 26.5 RC includes Apple's 2026 Pride wallpaper, continuing a tradition the company has maintained since 2018. Each year, Apple releases a new rainbow-themed wallpaper and often pairs it with a limited-edition Apple Watch Pride band and watch face.

While a cosmetic feature, the annual Pride wallpaper has become a cultural touchstone for Apple's user base and reinforces the company's public commitment to LGBTQ+ inclusion. The wallpaper is typically made available to all users when the final software version ships, usually timed to coincide with Pride Month in June.

What This Means for Developers and Users

The Release Candidate designation is significant. In Apple's development cycle, an RC build is typically identical — or nearly identical — to the version that ships to the general public. Developers and public beta testers can install iOS 26.5 RC now through their device's Settings > General > Software Update > Beta Updates menu.

For developers, the key action items are:

• Test RCS encryption behavior in messaging apps that interact with the Messages framework
• Review Maps API changes for any apps integrating MapKit or location-based services
• Verify ad placement rendering if building apps that display Maps content
• Update wallpaper-related features if apps interact with the device's personalization settings

For everyday users, the public release of iOS 26.5 will likely arrive within 1 to 2 weeks of this RC build. Those enrolled in the public beta program can install the RC now, while others should wait for the stable release through the standard Software Update channel.

Looking Ahead: The Road to Full RCS Encryption

The reappearance of RCS encryption in a Release Candidate — rather than an early beta — suggests Apple is closer to shipping this feature than many analysts expected. If the RC testing goes smoothly, encrypted RCS messaging could arrive in the final iOS 26.5 update, potentially reaching hundreds of millions of iPhones worldwide.

However, full deployment depends on more than just Apple. Google must ensure its Messages app supports the same encryption protocol version. Mobile carriers need to maintain RCS infrastructure that supports encrypted message relay. And the GSMA must finalize any remaining aspects of the Universal Profile 3.0 specification.

The broader trajectory is clear: the era of unencrypted cross-platform text messaging is ending. Between regulatory mandates, competitive pressure from encrypted messaging apps, and growing consumer awareness of digital privacy, both Apple and Google are moving toward a future where every text message — regardless of the sender's device — is protected by default.

Apple's iOS 26.5 RC may not be the final chapter in that story, but it is an important one. Users and developers alike should pay close attention to how RCS encryption behaves in this build, as it will likely define the standard for secure cross-platform messaging for years to come.