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Speed Booster Pack ⚡ PageSpeed Optimization Suite · Version history

Speed Booster Pack ⚡ PageSpeed Optimization Suite changelog and version history

Latest version
4.5.9.2
Nov 7, 2026 (2 days ago)
Releases
78
since 2014
In the last year
2
about one every 183 days
Tested up to
WordPress 6.8.12
PHP 5.6 or later

Releases each year

  • 201416 releases
  • 20162 releases
  • 20179 releases
  • 20184 releases
  • 201910 releases
  • 20205 releases
  • 202115 releases
  • 202210 releases
  • 20232 releases
  • 20242 releases
  • 20251 release
  • 20262 releases

20262 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.9.2Latest

    • Release Date: 07 Nov 2026
    • Fixed: Patched security vulnerability “Unauthenticated Stored XSS via comment author name” (CVE-2026-107771) – big thanks to Youcef Hamdani and Wordfence Intelligence!
    • Updated: Bumped instant.page version to 5.2.0.
    • Updated: Bumped instant.page version to 19.1.3.

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.9.1

    • Release Date: 08 May 2026
    • Fixed: The “Function _load_textdomain_just_in_time was called incorrectly” error is now fixed.

20251 release

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.9

    • Release Date: 10 October 2025
    • Improved: Checked and ensured the plugin is compatible with the latest versions of WordPress & PHP and several popular plugins. Contact us if you have ideas to improve the plugin… because we’re working on version 5!

20242 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.8.1

    • Release Date: 13 February 2024
    • Fixed: The update on the cache warmup feature broke things, so it’s reverted.

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.8

    • Release Date: 13 February 2024
    • Improved: Code refactoring, cleanups and readability improvements.
    • Removed: The class-sbp-custom-code-manager.php file is unused and deleted.
    • Fixed: Small update (for newer versions of PHP) in the SimpleHtmlDom library.
    • Fixed: Small update (for newer versions of PHP) in the Codestar Framework.
    • Fixed: Lazy loader’s inlined script is now loading before the lazyload.js file.
    • Fixed: Lazy loader has a placeholder image that doesn’t cause CLS issues.
    • Fixed: Lazy loader doesn’t add a data-srcset attribute as it’s not necessary.
    • Fixed: Cloudflare integration doesn’t cause fatal errors if cURL isn’t installed.
    • Fixed: The cache warmup feature now clears the whole cache before, well, warming up the cache.

20232 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.7

    • Release Date: 20 October 2023
    • Improved: Tested with the latest WordPress version.
    • Removed: Deleted unnecessary HTTP header addition in the advanced-cache.php file.
    • Fixed: A small issue in the “set image dimensions” feature is fixed.

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.6

    • Release Date: 19 January 2023
    • Improved: The introductory text in the SBP dashboard is shorter and less scary now.
    • Removed: Deleted the migrator class and the deactivation survey.
    • Fixed: A small issue in the lazy load feature is fixed.
    • Updated: Updated default .htaccess content based on HTML5 Boilerplate v6.0.0.
    • Updated: Updated Codestar Framework to v2.2.9.

202210 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.5

    • Release Date: 05 June 2022
    • Improved: Refactoring of some old code.
    • Fixed: Various bug fixes.

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.4

    • Release Date: 27 May 2022
    • Improved: Some code refactoring.
    • Improved: Lazy loading should perform even better now.
    • Fixed: Semi-important issue regarding an unintentional redirect.
    • Fixed: Some smaller, less-annoying bugs.

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.3

    • Release Date: 18 May 2022
    • Fixed: JSON outputs had that extra HTML comment which broke more than a few things…
    • Fixed: On rare occasions, the cachefile was saved completely empty.
    • Removed: New users won’t see an introduction popup because it’s not the most pleasant way to greet a new user. Instead, we’re going to update our dashboard text in the next version.

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.2

    • Release Date: 14 May 2022
    • NEW: New option called “Dequeue global styles”.
    • Improved: Lots of refactoring to the class-sbp-tweaks.php file.
    • Improved: Removed unused helper functions.
    • Fixed: Full site editing related bug squashed.
    • Fixed: HTML minifier did a lot more damage than it did good, so we replaced it with an external class from github.com/mrclay/minify.
    • Fixed: Hooked our public-faced features to init instead of template_redirect so it’s more compatible with other plugins.
    • Fixed: Reverted the shutdown hook as it did more damage than good.
    • Fixed: The PHP version warning (shown to PHP 5.x users) is now dismissible.

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.1.1

    • Release Date: 24 April 2022
    • Fixed: One more (tiny) fix to the deactivation survey.

  6. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.1

    • Release Date: 18 April 2022
    • NEW: Simple warning notice about PHP version (when it’s below 7.0).
    • Fixed: Deactivation survey didn’t show the details textarea.
    • Fixed: LiteSpeed cache cached logged-in users even when the setting was turned off.

  7. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.5.0

    • Release Date: 14 April 2022
    • NEW – WooCommerce optimizations: The “Special” tab is replaced with the “WooCommerce” tab with SEVEN WC-related optimizations, four of them brand new!
    • NEW – Deactivation survey: An optional survey added to the “Deactivate” button to get feedback from users leaving us, so we can improve SBP even further.
    • Improved: Added a shutdown hook so the plugin plays better with other plugins (like Really Simple SSL).
    • Improved: A few ifs here and there to improve the performance of the plugin.
    • Improved: LiteSpeed cache users can now exclude cookies!
    • Improved: Improvements with the lazy load feature – GetWid videos and videos using mediaelements.js are now lazy loaded properly.
    • Improved: The placeholder image of lazy loaded images is also improved, using a transparent pixel instead of a gray one.
    • Improved: Improvements with the method which adds the WP_CACHE constant to the wp-config.php file.
    • Updated: Updated Codestar Framework to v2.2.6.
    • Updated: Updated lazyload.js to v17.7.0.

  8. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.4.1.1

    • Release Date: 12 March 2022
    • Improved: Speed Booster Pack’s wp-admin CSS file got a bit smaller.
    • Improved: Better onboarding with titles.
    • Improved: The CDN feature is now enabled with a toggle.
    • Improved: Code improvements in the “LiteSpeed cache” feature.
    • Fixed: Fixed an issue when there were no fonts found inside page sources.
    • Fixed: The “set image dimensions” feature now correctly detects image URLs that start with http:// while the site URL starts with https:// (and vice versa).
    • Updated: Updated Codestar Framework to v2.2.6.
    • Updated: Updated intro.js to v5.0.0.
    • Removed: Custom Code Manager is now removed. Users who added custom codes will get a notice to copy their code to somewhere else.

  9. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.4.1

  10. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.4.0

    • Release Date: 05 February 2022
    • NEW – LiteSpeed Caching: This experimental new feature connects to your LiteSpeed server and use LiteSpeed’s caching structure. Since it’s really new, be sure to test thoroughly and kindly report any bugs to our GitHub page.
    • Improved: Better page caching by refactoring some of the code.
    • Fixed: Fixed onboarding for non-English users.
    • Fixed: Fixed a small issue with per-post/page critical CSS settings.
    • Updated: Updated Codestar Framework to v2.2.5.
    • Removed: The Advisor tab is now removed because the Site Health screen in WordPress core will include a Performance tab with the same functionality (in the future).

202115 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.4.2

    • Release Date: 15 November 2021
    • Fixed: Tiny bug in the cache delivery system.

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.4.1

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.4

    • Release Date: 13 November 2021
    • Improved: Added an onboarding modal to the settings page for first-time users.
    • Fixed: Fixed some bugs in the advanced-cache.php generation process.
    • Fixed: Lots of improvements/fixes to the cache warmup process.

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.3.1

    • Release Date: 16 October 2021
    • Had to release a tiny hotfix because we forgot to change the version. And while we’re at it, we edited the readme a bit.

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.3

    • Release Date: 16 October 2021
    • Improved: The Speed Booster Pack metabox in post/page edit screens is now shoed only to admins.
    • Improved: The settings page looks more clean now.
    • Improved: Added data-noptimize and data-sbp-skip to the default exclude lists of the JS optimizer.
    • Updated: lazyload.js was updated to version 17.5.0.
    • Removed: The PageSpeed Tricker feature is removed.
    • Fixed: Corrected the behavior of SBP when another plugin’s page caching was active and SBP’s page caching weren’t.
    • Patched: A security issue with the database optimizer was patched.

  6. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.2

    • Release Date: 01 October 2021
    • NEW: You can now disable Speed Booster Pack for certain user roles.
    • NEW: You can now add <link rel="preload"> tags for featured images.
    • Improved: Advisor works better now!

  7. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.1

    • Release Date: 11 September 2021
    • Improved: Better handling of notices.
    • Improved: Database engine converter works slightly better now.
    • Fixed: Small bug in Google font optimizer.
    • Fixed: Post revisions setting wasn’t working in some cases.
    • Updated: Codestar options framework is updated to its latest version.
    • Removed: “Dequeue Jetpack’s devicepx script” is gone.

  8. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.3.0

    • Release Date: 29 August 2021
    • NEW – Advisor: This new feature will recommend things like upgrading your PHP version, HTTP protocol and more, in the future.
    • NEW – Set missing image dimensions: SBP can now set missing width and height parameters for <img> tags automatically.
    • NEW – Content-specific Critical CSS: Allows you to set critical CSS rules for each post, page or other custom post types.
    • NEW – Content-specific Optimize JS: Allows you to set JS optimization rules for each post, page or other custom post types.
    • Improved: Google Fonts optimizer now supports /css2 URLs!
    • Improved: Better handling of the wp-config.php file.
    • Improved: Better handling of Cloudflare credentials.
    • Improved: You can now exclude CSS files from being deferred while critical CSS is enabled.
    • Fixed: An immutable notice shows that the PageSpeed Tricker feature is enabled.
    • Fixed: Email newsletter nag shows one day after SBP is installed, instead of immediately on first install.
    • Fixed: Fixed a harmless error in the cache warmup process.

  9. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.2.2

  10. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.2.1

    • Release Date: 03 July 2021
    • Fixed: Tiny hotfix for a bug that causes an error during the plugin update (but completely harmless).

  11. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.2.0

    • Release Date: 02 July 2021
    • NEW – Database Engine Converter Tool: Lets you convert database table engines from MyISAM to InnoDB.
    • NEW – Content-specific preloads: Allows you to set <link rel="preload" ... /> rules for each post, page or other custom post types.
    • NEW – Dequeue comment-reply.js: Dequeues the comment reply script.
    • Improved: More Cloudflare settings, included their brand new Automatic Platform Optimization (APO)!
    • Improved: Notifications of Speed Booster Pack are less annoying now, mostly moved to the Speed Booster Pack settings page.
    • Improved: JS optimization settings are improved by splitting “Move JS to footer” and “Defer JavaScript” features into two different settings. Make sure your JS optimization settings are still working after this update!
    • Improved: The CSS optimization PHP class is rewritten. User feedback welcome after this update! 🙂
    • Improved: Caching feature is greatly improved, both in terms of performance and code quality. We even squashed a few tiny bugs!
    • Improved: You can now exclude cookies from caching.
    • Improved: CriticalCSS options are extended to include conditional tags for WooCommerce products (is_product()) and product categories (is_product_category()). Also now the admin bar CSS is always excluded from being deferred.
    • Improved: Lazy loader is greatly improved.
    • Fixed: Minor security flaws (“minor” because only administrators are able to break things in previous 4.x versions).
    • Fixed: A conflict between SBP and All in One SEO Pack is fixed.
    • Fixed: A conflict between SBP and Elementor is fixed.
    • Fixed: A tiny bug is fixed in the autosave setting.
    • Updated: The library of the options framework is updated.

  12. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.1.3

  13. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.1.2

  14. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.1.1

  15. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.1.0

20205 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.0.1

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 4.0.0

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.6

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.5.1

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.5

201910 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.4.3

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.4.2

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.4.1

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.3

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.2.1

  6. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.2

  7. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8.1

  8. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.8

  9. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.7

  10. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.6

20184 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.5

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.4

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.3

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.7.2

20179 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.6.1

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.6

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.5

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.4

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.3

  6. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.2

  7. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.1

  8. Speed Booster Pack ⚡ PageSpeed Optimization Suite 3.0

  9. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.9

20162 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.8

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.7

201416 releases

  1. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.6

  2. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.5

  3. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.4

  4. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.3

  5. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.2

  6. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.1

  7. Speed Booster Pack ⚡ PageSpeed Optimization Suite 2.0

  8. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.9

  9. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.8

  10. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.7

  11. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.6

  12. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.5

  13. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.4

  14. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.3

  15. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.2

  16. Speed Booster Pack ⚡ PageSpeed Optimization Suite 1.1

Questions about Speed Booster Pack ⚡ PageSpeed Optimization Suite’s releases

What is the latest version of Speed Booster Pack ⚡ PageSpeed Optimization Suite?

4.5.9.2, released on Nov 7, 2026 (2 days ago). It’s tested up to WordPress 6.8.12 and needs PHP 5.6 or later.

How often is Speed Booster Pack ⚡ PageSpeed Optimization Suite updated?

2 releases in the last year, about one every 183 days. Its first release on WordPress.org dates from May 2014.

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Release dates come from the day each version’s folder was made in Speed Booster Pack ⚡ PageSpeed Optimization Suite’s WordPress.org SVN repository; the notes from its readme’s changelog, as its authors wrote it.