Kraken.io Image Optimizer

2.6.8

• Security release – added nonce checking to “reset all metadata” feature in Settings->Kraken.io.

2.6.7

• Security release – added more escape mechanisms just to be sure.

2.6.6

• Security release to solve https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-38454

2.6.5

• Security and maintenance release

2.6.4

• Security and maintenance release

2.6.3

• Verified the plugin’s compatibility with PHP 7 and WordPress 4.9

2.6.2

• Fixed a rare bug which prevented filepaths containing double-forward-slashes from getting optimized.

2.6.1

• Bug fixes related to new features

2.6.0

• Added ability to choose which post sizes get optimized (defaults to all)
• Added ability to change the chroma subsampling scheme for JPEG images (defaults to 4:2:0)
• Stability and compatibility improvements
• Various frontend CSS fixes and improvements
• WordPress version compatibility bumped to 4.6

2.5.1

• Fix fatal error on older PHP versions resulting from recent PHP array syntax

2.5.0

• Ability to disable optimization of main image, allowing faster uploads from Media Library. You can optimize the main image later from within your Media Library.
• Ability to restrict the maximum dimensions of image uploads (resizing), by width and/or height.
• When using resize feature, resized images are enhanced for sharper results using various advanced techniques.
• Ability to force JPEG quality to a discrete “quality” value, for greater savings if you know what you’re doing.
• Ability to preserve certain EXIF metadata tags, including Date, Copyright, Orientation, Geotag and Profile.
• Ability to automatically orient images according to their Orientation EXIF metadata.
• Improvements and simplifications to interface elements and Kraken.io Settings page.

2.0.0

• Please read! Kraken.io settings have now moved to an own section (Settings->Kraken.io), in order to reduce clutter in Media Settings, and to accomodate new features on the way.
• Advanced settings grouped in “Advanced Settings” section of settings page.
• Direct link to Kraken.io settings from Kraken.io in the plugins section.
• Updated screenshots.
• WordPress version compatibility bumped to 4.2.

1.0.9.1

• Fixed another reported bootstrap CSS conflict.

1.0.9

• Fixed potential conflict with Bootstrap Modal on blogs using Twitter Bootstrap.
• Better bundling of scripts for faster loading of the plugin.

1.0.8

• Added the ability to control the number of images the bulk tool optimizes at once. The default settings of 4 is recommended. Blogs with limited resources, for example those on small shared hosting plans should try a lower value if they run into issues with bulk optimization. Blogs on larger hosting plans can experiment with higher values.

1.0.7

• Added the ability to reset (or remove Kraken.io metadata) from individual images or all images at once, allowing further optimization in certain cases, for example, reoptimizing a previously losslessly optimized image as lossy.

1.0.6

• Better error handling.

1.0.5.9

• Cleanup release prior to major feature release. Paved the way for “reset” feature, and more.
• Added tags.

1.0.5.8

• Better debugging for customers by including WordPress version and Kraken.io plugin version per request.

1.0.5.7

• Added ability to disable automatic optimization of uploads.

1.0.5.6

• Rolled back to old way of replacing images in light of reported issues.

1.0.5.5

• Fixed potentially breaking change to do with new PHP syntax.

1.0.5.4

• More reliable handling of image fetching and overwriting.

1.0.5.3

• Fixed broken spinner by updating the URL to our new CDN.
• Added link to WP-CLI tools to readme.

1.0.5.2

• Removed hack which allows uploading of filenames with non-Latin alphabet, since Kraken.io API now supports it.
• Updated readme with information about free account.

1.0.5.1

• Tested with WordPress 4.1.
• Better naming convention for temporary files created.
• Updated readme.txt

1.0.5

• Fixed CURL issues related to latest PHP versions.
• Can now optimize filenames with non-Latin alphabet (such as Germanic umlauts, Cyrillic alphabet, etc).
• Performance improvement when optimizing through Media Library or using the bulk optimizer.
• CURL not present warning in Media Settings page.
• Stability and reliability improvements.

1.0.4

• Utilizes Kraken.io’s upload API instead of URL. Images are uploaded to Kraken.io from WordPress installations, rather than fetched by Kraken.
• Now works will local WordPress installations since hosted images are no longer fetched by URL, but uploaded by the client blog.

1.0.3.4

• Performance improvements.

1.0.3.3

• Bug and cleanup release prior to next feature release (Amazon S3 support, in the near future).
• Fixed bug related to SSL certificates on some blogs.
• Fixed bug causing preventing WPEngine users from copying live site to and from staging.
• JavaScripts and styles now only included where they need to be.
• Increased HTTP timeouts for users with extremely large numbers of thumbnails.
• Fixed issue preventing optimization of images on WordPress installations using relative image URIs. One plugin which used to cause this problem is Root Relative URLs by Marcus E. Pope.

1.0.3.2

• Fixed bug related to storing optimized thumbnails metadata.

1.0.3.1

• When using the Regenerate Thumbnails plugin with kraked images, meta data is now correctly updated per image.
• Optimization mode (lossy/lossless) is now stored with kraken.io thumbnail metadata (for future Stats page).

1.0.3

• Bulk Actions menu in Media Library is now extended with “Krak ’em all”, our Bulk Optimization feature.
• Fixed a bug which caused old images’ thumbnails to not be optimized.
• Fixed a failure condition which occured only on WPEngine-hosted systems.

1.0.2.1

• Fixed bug which led to kraked file not being retrieved in rare cases.
• Increase ajax timeout for media library inline kraking to be kinder to slower WordPress blogs.

1.0.2

• Thumbnails are now optimized when triggering an image optimization from within the media library.
• Number of Kraked thumbnails is now shown in media library in “Kraked Size” column.
• “Failed! Hover here” error notification does not persist where an image was not optimized. It goes away after page refresh.
• Optimize Image button no longer shown for incompatible media types.
• Information about thumbnail optimization is persisted for future fun-stats page/widget.
• Minor CSS tweaks.

1.0.1

• Minor cleanup release.

1.0

• First version. Supports lossy and lossless optimization of JPG, PNG and GIF (including aniGIF) image formats
• Hooks to Media Uploader to optimize all uploaded images, including generated thumbnails.
• Allows optimization of existing images in WordPress Media Library.