Releases

fmTrace 1.87

1.87 (763)

fmTrace no longer sends your Mac's serial number. Activation and licence checks now use a digest of it, and the check-in moved out of the URL.

A privacy release. Nothing about recording or the viewer changes; what changes is what the plug-in tells us about your machine.

Changed

  • Your Mac’s serial number no longer leaves your machine. Activation and licence checks used to send the raw IOPlatformSerialNumber, and we stored it. They now send a SHA-256 digest of it — the hardware ID — and that is what the licensing database is keyed on. Existing records were migrated to the same form, so nothing was left holding a serial.

    To be precise about what this does and does not buy you: we no longer hold your serial, and a copy of our database is no longer a list of Apple serial numbers. It is not a claim that the value could never be worked back — serials come from a small, structured space. Privacy spells this out.

  • The licence check-in moved out of the URL. It used to be GET /v1/license/<your serial>, which put the identifier in the access log of every hop between your Mac and our database. It is now a POST with the identifier in the request body, where it is not logged along the way.

  • The About tab reports the hardware ID. Copy support info now gives you the same 64-character string our records are keyed on, so a support request identifies your machine without anyone quoting a serial number over email.

Notes for existing installations

  • Your licence keeps working. Licences issued before this build are bound to the raw serial, and this build still accepts them. There is nothing to re-activate and no key to re-enter.

  • If you are extending or renewing a trial, update to 1.87 first. A licence issued by the current server is bound to the hardware ID, and a plug-in older than 1.87 will not accept it.

Fixed

  • Support commands that look a machine up now accept either the hardware ID or a raw serial. Before the fix, a block entered as a serial was recorded but never took effect.

This is the current release.

Download fmTrace 1.87 macOS installer · 6.6 MB · build 763 · 2026-08-24