System Features - Blog | macOS Tahoe

Explore macOS system features, updates, and capabilities. Learn about new functions, settings, and built-in tools in the latest macOS versions.

• macOS 27 Took 30 GB of Disk Space: Where It Went, What Comes Back
  After a macOS 27 upgrade, free space can drop 150 GB, then settle about 30 GB lower. What Apple Intelligence stores, what is purgeable, what to reclaim.
• macOS 27 for Mac Admins: MDM Update Commands Gone, Stricter TLS
  macOS 27 drops legacy MDM software update commands and blocks management servers that fail new TLS rules. What breaks, how to audit, what replaces it.
• Your Mac's Disk Is Full of Snapshots, Not Files. Here Is How to Prove It
  Before upgrading to macOS 27, find the space macOS is hiding: APFS snapshots, purgeable content, Preboot and swap. With the commands and what never to delete.
• Mac Keeps Asking for Screen Recording Permission: Real Fixes
  Your Mac keeps asking for Screen Recording permission, or a granted permission stops working. Learn how macOS TCC really works and how to fix both.
• How to Adjust Liquid Glass Transparency in macOS 27
  macOS 27 Golden Gate adds a real Liquid Glass transparency slider. Learn how to adjust opacity, fix menu bar legibility, and tune the look on your Mac.
• Spotlight Reindexing After macOS 27: Battery Drain & Stuck Fix
  Spotlight reindexes everything after a macOS 27 upgrade, draining battery and returning no search results. Tell normal from stuck, monitor it, and fix it.
• Should You Install the macOS 27 Beta? Golden Gate Known Issues
  The complete known-issues list for the macOS 27 Golden Gate Beta, plus a per-persona decision guide and how to install it safely on a separate volume.
• macOS Tahoe 26.5.1 M5 Mac Shutdown Fix: Network Extensions
  macOS Tahoe 26.5.1 fixes unexpected shutdowns on M5 Macs running content-filtering network extensions. Here's what changed, who's affected, and how to roll it out.
• macOS Tahoe 26.5 Released: Complete Update Guide, 79 CVE Security Roundup, and Hidden Changes
  macOS Tahoe 26.5 is here — full breakdown of new features, 79 patched CVEs, Apple Maps ads groundwork, the new App Store monthly subscription model, and what to install today.
• How to Prepare Your Mac for macOS 27: Complete Pre-WWDC 2026 Checklist
  Get your Mac ready for macOS 27 before WWDC 2026. Complete checklist covering Intel app audit, Rosetta 2 migration, backup strategy, and compatibility check.
• macOS Tahoe Window Resizing Bug: Why Apple Pulled the Fix and How to Work Around Liquid Glass Issues
  The macOS Tahoe Liquid Glass window resizing bug makes windows nearly impossible to resize. Learn why Apple reverted the 26.3 fix, workarounds using Rectangle and BetterSnapTool, and what's next.
• macOS Tahoe 26.4 Beta 2: Safari Compact Tabs Return, Rosetta 2 Warnings & Complete Guide to What's New
  Complete guide to macOS Tahoe 26.4 Beta 2 released February 23, 2026. Safari Compact Tab Bar returns, Rosetta 2 end-of-life warnings, charge limit tweaks, and all bug fixes.