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Add Admin CSS · Version history

Add Admin CSS changelog and version history

Latest version
2.5.1
Dec 8, 2025 (11 months ago)
Releases
17
since 2011
In the last year
1
Tested up to
WordPress 6.9.11

Releases each year

  • 20111 release
  • 20131 release
  • 20142 releases
  • 20153 releases
  • 20161 release
  • 20181 release
  • 20192 releases
  • 20202 releases
  • 20212 releases
  • 20252 releases

20252 releases

  1. Add Admin CSS 2.5.1Latest

    • Highlights:
    • A bugfix release to address the overzealous encoding of some valid CSS characters introduced in v2.5.
    • Details:
    • Fix: Escape only the minimum of characters so that valid CSS characters don’t get escaped. Props kevinvanrijn.
    • Change: Note compatibility through WP 6.9+

  2. Add Admin CSS 2.5

    • Highlights:
    • This recommended long overdue release adds a new filter for fine-grained control of whether CSS should be output or not, updates the plugin framework to the most current version (for hardening and miscellaneous improvements), prevents translations from containing unintended markup, notes compatibil…
    • Details:
    • New: Add c2c_add_admin_css_disable_css filter to override if CSS defined via this plugin should be output or not
    • New: Add is_recovery_mode_enabled() to determine is recovery mode is enabled
    • Change: Only support query parameter method of enabling recovery mode if current user can configure plugin settings
    • Change: Display the files setting help text as a list rather than a paragraph
    • Change: Check specifically if recovery mode is enabled before displaying admin notice that recovery mode is enabled
    • Change: Explicitly state the plugin name in the recovery mode admin notice to avoid ambiguity
    • Change: Switch use of parse_url() to wp_parse_url()
    • Change: Escape output of all translated strings
    • Change: Use instance method invocation instead of a deprecated static method invocation
    • Change: Convert ‘input_attributes’ value of config items from a string to an array
    • Change: Add translator comments for a pair of strings with placeholders that didn’t have one
    • New: Add DEVELOPER-DOCS.md and move hooks documentation into it
    • Change: Update plugin framework to 068
    • 068:
    • Change: Discontinue unnecessary explicit loading of textdomain
    • Change: Ignore a PHPCS warning that doesn’t apply
    • Change: Minor code reformatting
    • Change: Note compatibility through WP 6.8+
    • Change: Update copyright date (2025)
    • Unit tests:
    • Change: Generify unit tests to centralize per-plugin configuration to the top of the test class
    • Change: Define method return types for PHP 8+ compatibility
    • New: Add some header documentation
    • 067:
    • Breaking: Require config attribute ‘input_attributes’ to be an array
    • Hardening: Treat input attributes as array and escape each element before output
    • Change: Ensure config attribute values are of the same datatype as their defaults

20212 releases

  1. Add Admin CSS 2.0.1

    • Highlights:
    • This recommended bugfix release addresses a potential conflict with other plugins that prevented the plugin settings page main content from being displayed.
    • Details:
    • Change: Update plugin framework to 063
    • Fix: Simplify settings initialization to prevent conflicts with other plugins
    • Change: Remove ability to detect plugin settings page before current screen is set, as it is no longer needed
    • Change: Enqueue thickbox during 'admin_enqueue_scripts' action instead of during 'init'
    • Change: Use is_plugin_admin_page() in help_tabs() instead of reproducing its functionality
    • Change: Trigger a debugging warning if is_plugin_admin_page() is used before 'admin_init' action is fired
    • New: Add new string (from plugin framework) for translation
    • Full changelog is available in CHANGELOG.md.

  2. Add Admin CSS 2.0

20202 releases

  1. Add Admin CSS 1.9.1

  2. Add Admin CSS 1.9

20192 releases

  1. Add Admin CSS 1.8

  2. Add Admin CSS 1.7

20181 release

  1. Add Admin CSS 1.6

20161 release

  1. Add Admin CSS 1.4

20153 releases

  1. Add Admin CSS 1.3.4

  2. Add Admin CSS 1.3.3

  3. Add Admin CSS 1.3.2

20142 releases

  1. Add Admin CSS 1.3.1

  2. Add Admin CSS 1.3

20131 release

  1. Add Admin CSS 1.2

20111 release

  1. Add Admin CSS 1.1

Questions about Add Admin CSS’s releases

What is the latest version of Add Admin CSS?

2.5.1, released on Dec 8, 2025 (11 months ago). It’s tested up to WordPress 6.9.11.

How often is Add Admin CSS updated?

One release in the last year. Its first release on WordPress.org dates from December 2011.

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