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The latest version of the book is P2.0, released over 1 year ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

By default this page displays the errata for the latest version of the book. If you have a previous version, select it here:

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  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: P2.0 (02-Jul-17)
PDF page: 124

"we call Dispatch.queue" in the text.
queue: .default) in the code--David Lindsay

  • Reported in: P2.0 (03-Jul-17)
PDF page: 127

"(qos: .default)"
Developers should not use the "default" qos, according to the Apple documentation.--David Lindsay