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IBM Equal Access Accessibility Checker version history - 25 versions

IBM Equal Access Accessibility Checker by IBM Accessibility

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IBM Equal Access Accessibility Checker version history - 25 versions

  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 4.0.24.9999

    Released May 28, 2026 - 28.48 MB
    Works with firefox 58.0 and later
    Removed files from the package that are no longer used

    Source code released under Apache License 2.0

    Download Firefox and get the extension
    Download file

  • Older versions

    Version 4.0.18.9999

    Released May 20, 2026 - 63.34 MB
    Works with firefox 58.0 and later
    Rules:
    * fixrule(aria_descendant_valid): When the contained role is code, report a recommendation

    Checker Extension:
    * fix(extension): Fix store scans - Carbon datatable, select all creating infinite loop
    * bug(docs): Use versioned Carbon rather than 'latest' by @tombrunet in #2557

    Screen Reader Simulator:
    * fix(simulator,help): aria-describedby support for buttons and update help web components
    * fix(simulator): Various screen reader simulator fixes (see related PR)
    * feature(simulator): Add link in simulator to AVT process

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.17.9999

    Released Apr 29, 2026 - 62.5 MB
    Works with firefox 58.0 and later
    Screen Reader Simulator tab now enabled by default
    fix(engine, help): Update landmark rule mappings
    feature(simulator): Add tree support
    fix(simulator): Simulator test suite and major simulator engine cleanup

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.14.9999

    Released Mar 20, 2026 - 60.61 MB
    Works with firefox 58.0 and later
    fix(extension): Emulator updates to address shadow DOM issues
    fix(extension): Using 'this' in the wrong context

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.13.9999

    Released Mar 4, 2026 - 59.82 MB
    Works with firefox 58.0 and later
    fix(extension): Fixes non-functional close button in HTML report
    fix(extension): Replace multiselect with menu button for filters
    fixrule(element_tabbable_unobscured): Don't report potentially obscured when covering content is hidden

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.12.9999

    Released Feb 7, 2026 - 29.46 MB
    Works with firefox 58.0 and later
    feature(engine, extension): Prototype for screen reader emulator functions in #2453
    - Includes some fixes for SVG accessible name

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.11.9999

    Released Feb 6, 2026 - 29.27 MB
    Works with firefox 58.0 and later
    Engine
    * performance(engine): Various code changes to improve performance of the engine. 70%+ improvement
    * fix(engine): For a_target_warning, check aria-describedby for notifying users of new windows
    * fix(engine): aria_hidden_nontabbable / isTabbable not accounting for inert

    Help
    * fix(help): Text of link to 3.3.2 was wrong
    * fix(help): Cleanup of help URLs, remove noembed recommendation

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.8.9999

    Released Aug 13, 2025 - 30 MB
    Works with firefox 58.0 and later
    fix(engine): Downgrade the levels of the element_id_unique and table_aria_descendants rules to better line with the requirements

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.6.9999

    Released Jun 26, 2025 - 29.5 MB
    Works with firefox 58.0 and later
    • fix(engine): Issues related to <elements> made invisible with clip-path
    • fixrule(svg_graphics_labelled, img_alt_valid): Ignore SVG & image accessible name requirement when its ancestor is a widget or requires presentational child
    • fixrule(figure_label_exists, element_scrollable_tabbable): Deprecate element_scrollable_tabbable rule and fix the figure missing label issue

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.5.9999

    Released Jun 3, 2025 - 29.24 MB
    Works with firefox 58.0 and later
    Rules and Engine
    * fixrule(input_label_exists, aria_widget_labelled, aria_accessiblename_exists): Update accessible name requirement for certain roles
    * fix(engine): Issues related to <elements> made invisible with clip-path
    * fixrule(svg_graphics_labelled, img_alt_valid): Ignore SVG & image accessible name requirement when its ancestor is a widget or requires presentational child

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.4.9999

    Released Apr 24, 2025 - 28.99 MB
    Works with firefox 58.0 and later
    • chore(archive): Create archive for April 24, 2025
    • fix(engine): Update the landmark label uniqueness rules and deprecate meta_redirect_optional rule
    • fixrule(input_label_exists, aria_widget_labelled, aria_accessiblename_exists): Update accessible name requirement for certain roles V4

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.3.9999

    Released Mar 27, 2025 - 28.83 MB
    Works with firefox 58.0 and later
    What's Changed
    * New latest Rule set deployment: 27 March 2025
    * CI/CD packages boilerplates: Getting started, batch-scan, and command-line scanning

    Rules and Engine
    * fixrule (input_label_visible): Fix issues related to visible text on an input element
    * fixrule(element_scrollable_tabbable, element_tabbable_role_valid, text_contrast_sufficient): Issues related to scrolling, tabbing, and disabled controls
    * fixrule(element_scrollable_tabbable, element_tabbable_role_valid, text_contrast_sufficient): Issues related to scrolling, tabbing, and disabled controls (v4.x)
    * fixrule(element_scrollable_tabbable, aria_child_tabbable, element_tabbable_role_valid): Fix combobox tabbable descendent error
    * fixrule(element_scrollable_tabbable, aria_child_tabbable, element_tabbable_role_valid): Fix combobox tabbable descendent error (v4.x)

    Source code released under Apache License 2.0

    Download file

  • Version 4.0.0.9999

    Released Feb 11, 2025 - 28.57 MB
    Works with firefox 58.0 and later
    Extension
    * fix(extension): Dark mode pop-up
    * fix(extension): Fix reset filter link
    * fix(extension): Don't show full data:text/html content on generated HTML report page
    * fix(extension): Update Carbon package and use new Carbon combobutton

    Rules and Engine
    * fixrule(meta_refresh_delay | meta_redirect_optional): Align rules with ACT
    * fixrule(input_label_visible): Fix issues related to the Firefox css pseudo-element
    * fix(engine): Fix circular structure caused by aria-owns
    * fix(engine): Fix accessible name concatenation and deprecate aria_search_label_unique rule

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.79.9999

    Released Dec 13, 2024 - 29.58 MB
    Works with firefox 58.0 and later
    fixrule(element_tabbable_unobscured): Fix cacheing of element visibility, improve perf 10x
    fixrule(img_alt_null, aria_accessiblename_exists) Update the rule mappings to be consistent with ACT rules

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.78.9999

    Released Nov 14, 2024 - 29.33 MB
    Works with firefox 58.0 and later
    Extensions (Browser DevTools)
    * fix(extension): Fix focus mode jump to last selected issue by @nam-singh in #2093

    Rules and Engine
    * fixrule(aria_landmark_name_unique): Increase the accessible name length limitation
    * fixrule(list_markup_review): #text nodes not visited on prevNode causing false positive

    Java package
    * fix(java): When comparing against baselines, issues not cleaned, so failing due to insignificant differences

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.77.9999

    Released Nov 7, 2024 - 29.08 MB
    Works with firefox 58.0 and later
    What's Changed
    * Noticeable performance improvements

    Rules and Engine
    * fix(engine): rule engine refactor and update by @shunguoy in #2025
    * Conflict cases when aria-autocomplete and autocomplete are used together
    * fix(target_spacing_sufficient): Ignore cases for potential_overlap of text links
    * fix(target_spacing_sufficient): Ignore cases for clipped components
    * Rewrite accessible name module
    * Categorize the engine utility functions

    Chores and dependencies
    * Bump cookie and express in /report-react by @dependabot in #2073
    * Bump markdown-to-jsx from 7.1.9 to 7.5.0 in /accessibility-checker-extension by @dependabot in #2072
    * Bump axios from 1.6.1 to 1.7.7 in /accessibility-checker-extension by @dependabot in #2064
    * Bump rollup from 2.75.6 to 2.79.2 in /report-react by @dependabot in #2059
    * Bump axios from 1.6.0 to 1.7.4 in /common/module by @dependabot in #2046
    * Bump http-proxy-middleware from 2.0.6 to 2.0.7 in /report-react by @dependabot in #2076

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.76.9999

    Released Oct 2, 2024 - 29 MB
    Works with firefox 58.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.75.9999

    Released Aug 31, 2024 - 28.5 MB
    Works with firefox 58.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.74.9999

    Released Aug 7, 2024 - 28.37 MB
    Works with firefox 58.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.73.9999

    Released Jun 17, 2024 - 27.99 MB
    Works with firefox 48.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.72.9999

    Released Jun 8, 2024 - 27.87 MB
    Works with firefox 48.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.71.9999

    Released May 12, 2024 - 27.74 MB
    Works with firefox 48.0 and later
    ## What's Changed

    * Updated rule server deployment for May release 3.1.71 in #1906

    ### Extensions (browser Dev Tools)
    * fix(extension): Info overlay for web page doesn't inspect the element underneath in https://github.com/IBMa/equal-access/pull/1894

    ### Rules and Engine
    * fixrule(`a_text_purpose, meta_viewport_zoomable`, `widget_tabbable_exists`, `widget_tabbable_single`): Re-mapping WCAG SC and help references in https://github.com/IBMa/equal-access/pull/1899

    ### Chores and dependencies
    * Update pull_request_template.md Review in https://github.com/IBMa/equal-access/pull/1902
    * Bump ejs from 3.1.8 to 3.1.10 in /report-react in https://github.com/IBMa/equal-access/pull/1903


    **Full Changelog**: https://github.com/IBMa/equal-access/compare/3.1.70...3.1.71

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.70.9999

    Released Apr 21, 2024 - 27.61 MB
    Works with firefox 48.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.68.9999

    Released Mar 19, 2024 - 27.44 MB
    Works with firefox 48.0 and later

    Source code released under Apache License 2.0

    Download file

  • Version 3.1.67.9999

    Released Feb 4, 2024 - 27.24 MB
    Works with firefox 48.0 and later

    Source code released under Apache License 2.0

    Download file