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Cimo · Version history

Cimo changelog and version history

Latest version
1.5.0
Oct 14, 2026 (26 days ago)
Releases
19
since 2025
In the last year
10
about one every 36 days
Tested up to
WordPress 7.1.4
PHP 8.0 or later

Releases each year

  • 202511 releases
  • 20268 releases

20268 releases

  1. Cimo 1.5.0Latest

    • New: Developer API so other plugins can optimize files before upload #67
    • New: Option to skip optimizing WebP images on upload #77
    • New: Convert GIFs to animated WebP and optimize animated WebP #78

  2. Cimo 1.4.2

    • New: Free settings page shows real bulk optimization progress #66
    • New: Media Library notice when video optimization is skipped (premium) #48 #49
    • Fixed: Improved error message for bulk optimization on non-HTTPS sites #54
    • Fixed: Smart Optimization for HEIC images (premium) #60
    • Fixed: SVG sanitizer loading issue (premium) #55

  3. Cimo 1.4.1

    • Fixed: PHP error notice because of invalid big_image_size_threshold usage

  4. Cimo 1.4.0

    • New: Smart Optimization (premium) – get even smaller image file sizes when uploading images #35
    • New: Video & audio can now be optimized in Bulk Optimization #37
    • New: Toggle optimization option – toggle Cimo’s optimizer on/off when needed #36
    • Fixed: When uploading a video using a webkit-based browser, the progress bar would get stuck to ready #47
    • Fixed: When WordPress Automatic Image Scaling is ON, the file size in metadata does not match with the final #43

  5. Cimo 1.3.1

    • Fixed: Optimization metadata may not be attached if uploading images with the same filename #40
    • Fixed: Added view all stats link
    • Fixed: Added upgrade links

  6. Cimo 1.3.0

    • New: Bulk optimization without server processing (premium)
    • New: Frontend file uploads can now be optimized (premium)
    • New: Integrations to popular WordPress Form plugins (premium)
    • New: Added stealth mode (premium)
    • New: Added settings link in plugins page entry
    • New: Added support for dropping images in WooCommerce descriptions
    • Fixed: Cimo settings page improvements
    • Fixed: Improvements on stats metabox styling

  7. Cimo 1.2.3

    • New: Added SVG Optimization (premium)
    • New: Added HEIC image format support (premium)
    • Fixed: Dropping files stopped working in some instances #32

  8. Cimo 1.2.2

    • Fixed: Uploading an image via Media > Add Media File doesn’t show stats #4
    • Fixed: Dragging multiple images in quick succession sometimes doesn’t optimize the image #3
    • Fixed: LQIP doesn’t work correctly when the image has a srcset attribute #11
    • Fixed: Closing the upload button on the block toolbar stops uploading of media #9
    • Fixed: Uploading images with the same name in the same session doesn’t add the metadata correctly #8

202511 releases

  1. Cimo 1.2.1

    • New: If the resulting optimized image is bigger than the original image, the image is now skipped and the original image is kept.
    • Fixed: Fixed license activation issue

  2. Cimo 1.2.0

    • New: Video Optimization (premium)
    • New: Audio Optimization (premium)
    • New: Low Quality Image Placeholders (premium)
    • New: Added rating notice at the right time
    • Fixed: Now intercepts media uploads when performed inside the block editor iframe

  3. Cimo 1.1.2

    • Fixed: When uploading images, the original image is also uplaoded.

  4. Cimo 1.1.1

    • Fixed: When uploading images using Safari, images will just upload as they normally would.

  5. Cimo 1.1.0

    • New: Statistics dashboard showing total storage saved, compression ratio, and media optimized
    • New: Admin settings page under Settings > Cimo
    • New: WebP quality control slider (1-100%) for custom compression levels
    • New: Maximum image dimension setting to automatically resize large uploads
    • New: WordPress automatic scaling control (disable the 2560px scaling threshold)
    • New: Granular thumbnail generation control – disable all or select specific thumbnail sizes
    • New: “Recommended” preset for one-click optimal settings

  6. Cimo 1.0.5

    • Fixed: Metadata saving fails if WP is installed in a subdirectory

  7. Cimo 1.0.4

    • New: Added partial support for Divi

  8. Cimo 1.0.3

    • Fixed: File prefixes are no longer used during the optimization process. The original file names are now retained.

  9. Cimo 1.0.2

    • Fixed: Dragging images on a blank editor or on top of other blocks now converts images
    • Fixed: Dragging images into the block editor now converts images
    • Fixed: Clicking on the Upload button on an image block directly now converts images
    • Fixed: Uploading images from Media > Library and in grid view now converts images
    • Fixed: Minor console JS error in some admin pages
    • Change: Added admin notice to let user know what to expect

  10. Cimo 1.0.1

    • Fixed: Minor string translation tweaks

  11. Cimo 1.0.0

    • Initial release of Cimo – bringing free, unlimited image optimization and compression to WordPress.
    • Initial release
    • Client-side image optimization
    • WebP conversion support
    • Unlimited compression
    • Privacy-first approach

Questions about Cimo’s releases

What is the latest version of Cimo?

1.5.0, released on Oct 14, 2026 (3 weeks ago). It’s tested up to WordPress 7.1.4 and needs PHP 8.0 or later.

How often is Cimo updated?

10 releases in the last year, about one every 36 days. Its first release on WordPress.org dates from August 2025.

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Release dates come from the day each version’s folder was made in Cimo’s WordPress.org SVN repository; the notes from its readme’s changelog, as its authors wrote it.