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The latest version of the book is B6.0, released about 1 month 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:

If you've found a new error, please submit it.

  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: B6.0 (12-Jan-20)
PDF page: 29
Paper page: 15
The code sample in "Connecting the Home Page Application" for the config.js is incorrect code sample lists creating the database requiring the wron...more...
  • Reported in: B5.0 (03-Dec-19)
PDF page: 31

The list entry for item 3. metadata has a typo in the formatting code (be it html, latex, markdown, or whatever). --Myrddin Emrys

  • Reported in: B5.0 (04-Dec-19)
PDF page: 44
The Eventide message store is Just PostgreSQL(tm). I suspect the word 'just' need not be capitalized, unless this is a meme or marketing phrase tha...more...
  • Reported in: B5.0 (05-Dec-19)
PDF page: 52
The text '(<xref linkend=”header.projectingDataIntoUsefulShapes. beholdingThePower”/ >).' appears to be unfinished. It might be intended as a joke, b...more...
  • Reported in: B5.0 (12-Dec-19)
PDF page: 152
Title "Why Are We Only Simulating an Upload to S3?" At first I took this to mean 'Why are we only looking at Amazon's offering and not Google's or ...more...