KAGG Compatibility
The plugin blocks error messages of any level from WordPress core, plugins, and themes.
Use with caution
KAGG Compatibility works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites, is rated 5/5 and was last updated 7 months ago, and scores 45/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- Only tested up to WordPress 6.9 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where KAGG Compatibility stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| compatibility | #34 |
| deprecated | #68 |
| development | >100 |
| notice | >100 |
| warning | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 2 reviews
About KAGG Compatibility
From the official readme · v2.5.0Description
WordPress is not fully compatible with PHP 8.0-8.5. The remaining known PHP 8.0+ issues are deprecation notices.
The same is related to many popular plugins such as WooCommerce, Jetpack, Gravity Forms, and others. Mainly, they produce deprecation notices from the Action Scheduler library.
Features
- The plugin blocks deprecation notices, user deprecation notices, notices, warnings, user notices, and user warnings.
- The list of folders from which errors are blocked can be filtered. This list may specify any WordPress Core, plugin, and theme folders.
- Plugin filters out errors from these folders only. Errors produced by other code are not blocked, which helps in debugging user code.
- During activation, the plugin installs a mu-plugin
kagg-compatibility-error-handler.phpinto the/wp-content/mu-plugins/folder. It contains the error handler, which loads earlier than any plugin or theme.
Plugin Support
Installation
- Upload the
kagg-compatibilityfolder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
Can I contribute?
Yes, you can!
- Join in on our GitHub repository
Changelog
2.5.0
- The minimum required PHP version is now 7.4.
- The minimum required WordPress version is now 6.0.
2.4.3
- Improved error handling with Query Monitor.
- Improved error handling with Action Scheduler.
2.4.2
- Improved error handling with Uncanny Automator.
2.4.0
- Added KAGG_DISABLE_ERROR_HANDLER constant to disable the error handler.
- Added blocking of WPForms error handlers to prevent conflicts.
- Improved chaining of error handlers.
- Changed wpf_error_handler_level filter name to kagg_compatibility_levels.
- Fixed skipping suppression of some errors.
2.3.0
- Tested with PHP 8.4.
- Tested with WordPress 6.7.
2.2.0
- Dropped support for PHP 7.0 and 7.1. The minimum required PHP version is now 7.2.
- Add plugins and themes to the default settings.
- Tested with WordPress 6.6.
- Tested with WooCommerce 9.1.
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best KAGG Compatibility alternatives
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FAQ
KAGG Compatibility: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 30, 2026
Is KAGG Compatibility free?
Yes. KAGG Compatibility is free to download and use from the official WordPress.org plugin directory.
Is KAGG Compatibility safe to use in 2026?
KAGG Compatibility works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites, is rated 5/5 and was last updated 7 months ago, and scores 45/100 on our health check.
How many websites use KAGG Compatibility?
KAGG Compatibility is active on 10+ WordPress websites and has been downloaded 3,916 times since it launched in February 2022. It was downloaded 65 times in the last 30 days.
Does KAGG Compatibility work with WordPress 7.1?
KAGG Compatibility is officially tested up to WordPress 6.9.9, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does KAGG Compatibility need?
KAGG Compatibility requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was KAGG Compatibility last updated?
The latest version, 2.5.0, was released on March 3, 2026 (7 months ago).
Who makes KAGG Compatibility?
KAGG Compatibility is developed and maintained by kaggdesign.
What are the best alternatives to KAGG Compatibility?
The most popular alternatives to KAGG Compatibility are Plugin Compatibility Checker (9K+ installs), Better Plugin Compatibility… (4K+ installs) and Eli's PHP Compatibility Sca… (500+ installs).
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