macOS Sequoia 155 RC Released: What You Need to Know About Apple’s Final Beta Before Launch

Apple has officially released the RC (Release Candidate) version of macOS Sequoia 15.5, signaling that the next major software update for Mac is nearing its public debut. For developers and public beta testers, this update is likely the last preview before it goes live for everyone. Here’s a breakdown of what the RC version includes, how it’s different from earlier betas, and what it tells us about Apple’s release timeline.

macOS Sequoia 15.5 RC: What’s Inside This Beta Update

Apple’s annual software cycle is well-known among developers and tech enthusiasts, and 2025 is no different. macOS Sequoia 15.5 has been in beta testing for months, and Apple has now pushed out the RC version—an internal milestone that essentially serves as the “almost final” edition of the software.

Unlike early beta releases that typically come with new features or UI changes, the RC version is laser-focused on stability. Apple uses this stage to polish up the code, crush lingering bugs, and fine-tune system performance. This version isn’t expected to offer any flashy new features—it’s about making sure everything runs as smoothly as possible.