Digging Into WordPress

Errata

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Changelog

Displaying in reverse chronological order.

Version 6.9 – January 2026

• Updated metadata for PDF version
• Updated credits and copyright info
• Updated intro page with 6.9 infos
• Adds and updates numerous side blurbs
• Updates many links and references
• Page 24: updates side blurb information
• Page 46-47: updates recommended plugin list
• Page 150: removes caption in popout box
• Page 151-152: removes sidebar blurbs
• Page 157: updates sidebar information
• Page 158: removes sidebar information
• Page 160: updates sidebar information
• Page 177: adds and updates sidebar blurbs
• Page 183: updates sidebar information
• Page 317: updates 7G to 8G Firewall
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 6.7 – January 2025

• Updated metadata for PDF version
• Updated credits and copyright info
• Updated intro page with 6.7 infos
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 6.2 – April 2023

• Updated metadata for PDF version
• Updated credits and copyright info
• Updated intro page with 6.2 infos
• Updated numerous links and resources
• Page 46: removes sidebar information
• Page 142: removes sidebar information
• Page 236: adds Wizard's SQL sidebar item
• Page 35, 65, 83, 142, 187, 250: adds custom code sidebar
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 5.8 – August 2021

• Updated metadata for PDF version
• Updated credits and copyright info
• Updated intro page with 5.8 infos
• Updated numerous links and resources
• Page 28: updates WP .htaccess rules
• Page 35: removes needless sidebar info
• Page 40: updates free theme resources
• Page 204: updates rss feed validators
• Page 243: removes Twitter Avatar blurb
• Page 252: updates quicktag plugin list
• Page 288: adds infos about WP Sitemaps
• Page 297: removes sidebar information
• Page 317: updates list of security plugins
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 5.5 – July 2020

• Updated metadata for PDF version
• Updated credits and copyright info
• Updated intro page with 5.5 infos
• Updated numerous links and resources
• Replaces domain.tld with example.com
• Replaces all http: URLs with https:
• Replaces all /> with >
• Page 24: updates default theme infos
• Page 48: adds sidebar info about plugins
• Page 58: updates HTML element infos
• Page 59: updates meta tags and sidebar
• Page 71: updates sidebar adds link
• Page 114: updates sidebar information
• Page 114: updates jQuery library URL
• Page 166: updates sidebar information
• Page 272: adds sidebar resource for robots.txt
• Page 272: adds resource to sidebar
• Page 273: updates robots info with link to sidebar
• Page 289: replaces SEO Ultimate with Rank Math
• Page 291: updated tracking code and infos
• Page 310: updates list of password generators
• Page 314: adds sidebar resource
• Page 318: updates list of security plugins
• Page 327: updates file monitor list
• Page 329: updates Backup plugin resource
• Page 330: updates list of cache plugins
• Page 332: updates sidebar resource
• New PDF format for all books: Acrobat 8/9 (PDF 1.7)
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 5.0 – December 2018

• Updated intro page with 5.0 info
• Updated last couple of pages in the ToC
• Page 11, 341: removed meta-ish sidebar box
• Page 19: updates software/app resource infos
• Page 24: updates default WP theme information
• Page 24: updates "first things" side box
• Page 25: adds sidebar Gutenberg resources
• Page 39: adds sidebar information
• Page 42: adds sidebar information for shapeSpace theme
• Page 45: updates text infos in third paragraph
• Page 46, 142: adds sidebar info about WP plugin dev
• Page 46: updates recommended plugins section 2.7.4
• Page 80: removes side box about outdated plugin
• Page 85: updates link for Quotes on Design
• Page 87: renames title of side box
• Page 91: tweaks side box for clarity
• Page 100: adds side box for more loop infos
• Page 109: updates better recent comments
• Page 110: updates first paragraph for clarity
• Page 116: updates information about Delicious
• Page 117: removes outdated info for old WP versions
• Page 125, 126: updates theme switch plugin option
• Page 127: updates Mobify popout information
• Page 127: removes outdated side box information
• Page 134: updates popout information on Useful Plugins
• Page 141: updates sidebar info about disabling plugins
• Page 146: Updates sidebar information about Shortcode API
• Page 158: updates sidebar information for clarity
• Page 184: updates Feedburner alternatives
• Page 189: removes 404 URL in last paragraph
• Page 227: removes outdated threaded-comments plugin
• Page 230: removes outdated feature/bury plugin
• Page 252: removes outdated side information
• Page 256: updates anti-spam plugin list
• Page 259: updates Twitter plugin list
• Page 271: removes 404 link
• Page 275: updates 2nd paragraph
• Page 285: updates information in 8.4.6
• Page 286: updates section 8.4.7
• Page 289: removes outdated plugin
• Page 289: updates information in 8.5.1
• Page 290: adds side box information about Mint
• Page 291: fixes incorrect link in the side box
• Page 292: updates section 8.5.5 information
• Page 318: updates section 9.2.1 information
• Page 320: adds side box info about custom blacklists
• Page 323: updates plugin information in 9.3.2
• Page 324: updates section 9.3.4 error logging infos
• Page 325: updates side box monitoring link
• Page 328: replaces WP-DBManager with UpdraftPlus
• Page 330: removes outdated plugins side box
• Page 333: removes DOA sidebar info on sprites
• Page 335: removes 404 resource from CDN list
• Page 339: removes 404 side box for cache database
• Page 340: removes 404 resources for cache busting
• Page 341: tweaks callout for WP Themes In Depth
• Page 321: adds side info for new security plugin
• Page 335: adds CDN side box information
• Generated new PDF Demo
• View complete changelog

Version 4.8 – June 2017

• Updated intro page with 4.8 info
• Page 42: adds aside info about starter theme
• Page 291: adds info about Mint retiring
• Page 297: updates link in aside box
• Generated new PDF Demo
• View complete changelog

Version 4.7 – December 2016

• Updated intro page with 4.7 info
• Page 24: updated aside information
• Page 43: updated theme information
• Page 60: added aside on title tag
• Page 99: updated aside information
• Page 284: added aside on title tag
• Page 297: added aside information
• Page 323: updated plugin information
• Generated new PDF Demo
• View complete changelog

Version 4.6 – August 2016

• Updated metadata for PDF versions
• Updated credits and copyright infos
• Updated intro page with 4.5 info
• Updated URL of DigWP Facebook page
• New version in multiple PDF formats
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 4.5 – May 2016

• Updated metadata for PDF versions
• Updated credits and copyright infos
• Updated intro page with 4.5 info
• Replaced Facebook icon on intro page
• Refined layout of copyright page
• Updated ad graphic w/ hi-rez version
• Page 25: added aside information
• Page 54: added aside information
• Page 121: added aside information
• Page 328: added aside information
• Page 297: added aside information
• Page 317: added aside information
• Page 317: removed WP Security Scan
• Page 317: added Blackhole Bad Bots
• Page 318: edited aside information
• Page 318: added aside information
• New version in multiple PDF formats
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Generated new PDF Demo
• View complete changelog

Version 4.4 – January 2016

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 4.4 info
• Page 19: removed FileZilla from list
• Page 24: updated require() statement
• Page 24: updated default WordPress theme
• Page 48, 139: added aside info on troubleshooting
• Page 129: updated widget headings from h4 to h2
• Page 314: corrected text in aside info
• Page 317: corrected pop quiz answer in aside info
• Page 341: updated link text in WP Themes box
• New version in multiple PDF formats
• Fine-tuned styles, layout, details
• General cleanup, fine-tuning and maintenance
• Created new Demo version of the PDF
• Updated Bonus Content PDF
• View complete changelog

Version 4.3 – September 2015

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 4.3 info
• Added blurb about new singular template
• Page 53: edited sidebar info for clarity
• New version in multiple PDF formats
• Fine-tuned styles, layout, details
• General cleanup, fine-tuning and maintenance
• Created new Demo version of the PDF
• Updated Bonus Content PDF
• View complete changelog

Version 4.2 – May 2015

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 4.2 info
• Fixed various errata
• Fixed all 404 links
• Replaced some http URLs with https
• Updated or removed outdated information
• Refined page layout throughout the book
• Fine-tuned back cover layout
• Fine-tuned styles, layout, details
• General cleanup, fine-tuning and maintenance
• Created new Demo version of the PDF
• View complete changelog

Version 4.0 – September 2014

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 4.0 info
• Fixed various errata
• Added bonus content info in Table of Contents
• Added blurb about themes book in Table of Contents
• General cleanup, fine-tuning and maintenance
• Fine-tuned styles, layout, details
• Created new Demo version of the PDF
• View complete changelog

Version 3.9 – April 2014

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 3.9 info
• Fine-tuned styles, layout, details
• Fixed various errata
• View complete changelog

Version 3.8 – January 2014

• New version in PDF format
• Updated meta information for PDF versions
• Updated credits and copyright infos
• Updated Intro page with 3.8 info
• Fine-tuned styles, layout, details
• Fixed various errata
• View complete changelog

Version 3.7 – October 2013

• New version in PDF and PRINT formats
• New Supplemental Bonus Content in PDF format
• Fine-tuned styles, layout, details
• Updated, removed, and added links
• Updated table of contents
• Fixed additional errata
• Updated meta information for PDF versions
• Updated DEMO PDF (available from the /book/ page)
• Plus much more (view complete changelog)

Version 3.4 – October 2012

• New version in PDF and PRINT formats
• Added new section covering the WordPress 3.4 update
• Fine-tuned styles, layout, details
• Updated, removed, and added links
• Updated table of contents
• Fixed additional errata
• Updated meta information for PDF versions
• Updated DEMO PDF (available from the /book/ page)
• Plus much more (view complete changelog)

Version 3.3 – February 2012

• New version in PDF and PRINT formats
• New section covering WordPress 3.2
• New section covering WordPress 3.3
• Refreshed/updated graphics throughout the book
• New "lite" version of the PDF that's more portable
• Updated "widescreen" PDF for large monitors
• Updated, streamlined existing content for better flow and readability
• Restructured chapter headings and subheadings for better consistency
• Removed and/or excerpted some stuff from later chapters
• Updated content where applicable with WP 3.3 info
• Added “loop.php” to chart in Chapter 3
• Updated, removed, and added links
• Updated/refreshed Table of Contents
• Hyperlinked all chapters and sections throughout PDF
• Fixed numerous spelling/grammatical errors and other errata
• Added meta information to PDF versions (ie, full, wide, & lite)
• Updated DEMO PDF (available from the /book/ page)

Version 3.1 – April 2011

• New in PRINT as well as PDF
• New section covering WordPress 3.1
• Revised entire book ensuring it was all up to date
• Rewritten/removed/edited material in multiple chapters
• Fixed numerous spelling/grammatical errors and other errata

Version 3.0 – September 2010

• New in PRINT as well as PDF
• New section covering WordPress 3.0
• Revised entire book ensuring it was all up to date
• New front and back cover
• New template hierarchy chart
• Removed Index from back of book

Version 2.0 – February 2010

• New in PRINT as well as PDF
• New stuff: free themes and info on them, WP 2.9 information
• New illustration for template heirarchy
• Little changes throughout book, updated text/opinions

Version 1.5 – December 2009

• Final clean version before 2.0
• Various small updates
• Print version launch

Version 1.4 – November 2009

• Fixed more typos
• Fixed a missing apostrophe in a code snippet
• Added missing subchapter to ToC, added missing links

Version 1.3 – October 2009

• Fixed more typos
• Updated & Linked(!) Table of Contents

Version 1.2 – September 2009

• Fixed more typos
• Better section naming

Version 1.1 – September 2009

• Fixed a bunch of typos
• Fixed code snippet: remove_action function missing opening parenthesis
• General fine-tuning after much feedback

Version 1.0 – September 2009

• Launch Version - Premier Edition