The answer at the top

At the top of the Overview, under After macOS 27, Vernacular gives its answer in one sentence. For example:

• “37 of your 40 apps will keep working. Three things need you.”
• “All 40 of your apps will keep working after macOS 27. Nothing to do.”
• “All 40 of your apps will keep working after macOS 27. One thing needs you.” when every app runs natively but an add-on, such as a printer driver, doesn’t.

What the numbers count

• Your apps: each app once, however many copies you have. Copies
• Will keep working: apps that run natively, made for your Mac’s Apple silicon chip.
• Things that need you: apps and add-ons that stop after macOS 27, apps with parts that stop, and games made only for Intel processors. What each verdict means

Apps that already can’t open (made for 32-bit Macs) don’t count as needing you: nothing changes for them in macOS 28. They still get a lane on the crossing and a card in the checklist, so you can decide whether to keep them. Ones Vernacular couldn’t read don’t count either. When Vernacular can’t tell

Under the answer

• If Rosetta isn’t installed: “Rosetta isn’t installed on this Mac, so an Intel app asks to install it before it opens.”
• On a Mac with an Intel processor, the answer is different. On a Mac with an Intel processor
• With the unlock, SINCE THE LAST READ lists what changed. What changed since the last read
• Without it, Keep track of these in the checklist. opens the unlock. The checklist

The answer is only what the files on your Mac say. If there’s a newer version of an app, Vernacular can’t know until it’s on your Mac: it never connects to the internet. Every sentence it can give: Every answer Vernacular can give.