Apple issued Release Candidate builds for macOS Sonoma and macOS Sequoia on Monday. These builds represent the final stage of developer testing before the software is released to the general public. This update cycle arrived alongside the second developer beta for macOS Tahoe 26.6.
Key details
- Software versions: Release Candidates for macOS Sonoma and macOS Sequoia updates.
- Primary release: The seeds launched simultaneously with macOS Tahoe 26.6 developer beta 2.
- Release date: Apple rolled out these specific builds on June 15, 2026.
- Availability: The software is currently provided to developers for a final round of verification.
Why it matters
Issuing maintenance updates for two previous operating systems at once signals Apple’s commitment to supporting hardware that may not be compatible with macOS Tahoe. Many professional and enterprise users delay major OS upgrades to maintain software compatibility and system stability. These Release Candidates ensure that those users receive necessary security patches and bug fixes without being forced to adopt the newest operating system features. For individuals managing a variety of tools on older machines with services like Setapp, these builds provide the reliability needed to keep existing software workflows functional on mature platforms.
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