Reverting to an older version of Safari Technology Preview

Apple try to make it impossible to revert to a prior version of Safari Technology Preview (STP) – and they also try to force updates to the latest version immediately, without user consent. This is bafflingly hostile behaviour for what is supposed to be a beta version of the browser that users voluntarily, out of… Read more

Apple Mail crashes on launch if connection logging is enabled

This was a fun one.  Mail started crashing on launch for absolutely no apparent reason – nothing had changed to its config or similar in a long time.  The crash logs were all fingering an identical culprit – -[IMAPTaskManager secondaryIdleMailboxName] called on the wrong GCD queue: Process: Mail [19884] Path: /Applications/Mail.app/Contents/MacOS/Mail Identifier: com.apple.mail Version: 11.3… Read more

macOS 10.12.2 appears to have brought with it some GPU issues

I run Einstein@Home, using both CPU cores & my GPU.  Other than a few month period where Einstein@Home was issuing broken GPU work units, I’ve been successfully doing this for years, I think.  Longer than I can really remember, in any case. It appears, however, that 10.12.2 has introduced some serious issues impacting those GPU… Read more

Quality control of current Mac games

The age-old sore point of Mac gaming has been performance.  Ports from Windows versions would often run significantly slower for no apparent reason.  Interestingly, this seems to be less of an issue as of the last couple of years – whether because the games are being optimised better or Mac hardware is just better able… Read more