# Changelog All notable changes to **APCu Manager** are documented in this *changelog*. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and **APCu Manager** adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [4.5.0] - 2026-06-03 ### Added - Detection of untruthful or malformed keys. ### Fixed - [SEC005] Stored XSS vulnerability in the objects explorer (thanks to [WPScan](https://wpscan.com)). ## [4.4.0] - 2026-03-25 ### Added - Compatibility with WordPress 7.0. ### Changed - Minimal requirements are now PHP 8.2 and WordPress 6.4. - Some strings in `readme.txt` have been updated. ### Removed - Compatibility with PHP 8.1. - Compatibility with WordPress 6.2 & 6.3. ## [4.3.0] - 2025-11-22 ### Added - Compatibility with WordPress 6.9. ## [4.2.1] - 2025-07-18 ### Fixed - PHP triggers an "Uncaught TypeError" when using `set_non_persistent()` (thanks to [mdbstc](https://profiles.wordpress.org/mdbstc/)). - Versions described in readme are outdated. ## [4.2.0] - 2025-04-14 ### Added - Compatibility with WordPress 6.8. ### Fixed - Plugin update process may be confused when it founds error in release file. ## [4.1.0] - 2024-11-23 ### Added - Compatibility with WordPress 6.6 & 6.7. ### Changed - Ability to self-update from Github. - The plugin user agent is now more consistent and "standard". ### Fixed - There's a WordPress core "feature" which causes some PII to leak (to wp.org) during plugin and theme updates. This is no more the case for this plugin. - In some cases, a WordPress notice can be triggered regarding the loading sequence of translations. ### Removed - Test site launching from wordpress.org plugin page. - All Databeam hooks and libraries, as the Databeam project is abandoned. - Dependency on wp.org for updates. ## [4.0.0] - 2024-05-28 ### Added - [BC] To enable installation on more heterogeneous platforms, the plugin now adapts its internal logging mode to already loaded libraries. ### Changed - Updated DecaLog SDK from version 4.1.0 to version 5.0.0. ### Fixed - PHP error with some plugins like Woocommerce Paypal Payments. ## [3.9.0] - 2024-05-07 ### Changed - The plugin now adapts its requirements to the PSR-3 loaded version. ## [3.8.3] - 2024-05-04 ### Fixed - PHP error when DecaLog is not installed. ## [3.8.2] - 2024-05-04 ### Fixed - PHP error when DecaLog is not installed. ## [3.8.1] - 2024-05-04 ### Changed - Updated DecaLog SDK from version 3.0.0 to version 4.1.0. - Minimal required WordPress version is now 6.2. ## [3.8.0] - 2024-03-02 ### Added - Compatibility with WordPress 6.5. ### Changed - Minimal required WordPress version is now 6.1. - Minimal required PHP version is now 8.1. ## [3.7.2] - 2023-11-23 ### Fixed - In some edge-cases, multi sites instances may experience a PHP error while loading non-existent options (thanks to [Szabó József](https://github.com/er2es)). ## [3.7.1] - 2023-11-22 ### Changed - Options loading performances greatly improved. - Improved hit-ratio computing. ## [3.7.0] - 2023-10-25 ### Added - Compatibility with WordPress 6.4. ### Fixed - With PHP 8.2, in some edge cases, deprecation warnings may be triggered when viewing analytics. ## [3.6.0] - 2023-07-12 ### Added - Compatibility with WordPress 6.3. ### Changed - The color for `shmop` test in Site Health is now gray to not worry to much about it (was previously orange). ### Fixed - With APCu version greater than 5.1.21, the 'used' object field may be wrongly computed. ## [3.5.2] - 2023-05-15 ### Changed - Improved objects list rendering time. ### Fixed - Sorting objects by status produces PHP warnings. ### Removed - The ability to try to fetch expired objects. ## [3.5.1] - 2023-03-02 ### Fixed - [SEC004] CSRF vulnerability / [CVE-2023-27444](https://www.cve.org/CVERecord?id=CVE-2023-27444) (thanks to [Mika](https://patchstack.com/database/researcher/5ade6efe-f495-4836-906d-3de30c24edad) from [Patchstack](https://patchstack.com)). ## [3.5.0] - 2023-02-24 The developments of PerfOps One suite, of which this plugin is a part, is now sponsored by [Hosterra](https://hosterra.eu). Hosterra is a web hosting company I founded in late 2022 whose purpose is to propose web services operating in a European data center that is water and energy efficient and ensures a first step towards GDPR compliance. This sponsoring is a way to keep PerfOps One plugins suite free, open source and independent. ### Added - Compatibility with WordPress 6.2. ### Fixed - In some edge-cases, detecting IP may produce PHP deprecation warnings (thanks to [YR Chen](https://github.com/stevapple)). ## [3.4.1] - 2023-01-26 ### Changed - Better handling of hoster-specific configurations. ### Fixed - The plugin doesn't fully support APCu version greater than 5.1.21 (many thanks to [vgostore](https://github.com/vgostore) for helping me to debunk this). ## [3.4.0] - 2022-12-31 ### Added - Support for `wp_cache_flush_group()` function. ### Changed - Improved loading by removing unneeded jQuery references in public rendering (thanks to [Kishorchand](https://github.com/Kishorchandth)). - [WPCLI] Improved resilience to php configuration-related errors. ## [3.3.0] - 2022-10-06 ### Added - Compatibility with WordPress 6.1. - Support for `wp_cache_flush_runtime()` function. - [WPCLI] The results of `wp apcu` commands are now logged in [DecaLog](https://wordpress.org/plugins/decalog/). ### Changed - Improved ephemeral cache in analytics. - Updated Kint from version 4.1.1 to version 4.2.0. - [WPCLI] The results of `wp apcu` commands are now prefixed by the product name. ### Fixed - [SEC003] Moment.js library updated to 2.29.4 / [Regular Expression Denial of Service (ReDoS)](https://github.com/moment/moment/issues/6012). - Flushing APCu doesn't flush the internal cache at the same time. ## [3.2.0] - 2022-04-20 ### Added - Compatibility with WordPress 6.0. - Full support of `wp_cache_*_multi()` functions. ### Changed - Improved preloading compatibility. - Updated DecaLog SDK from version 2.0.2 to version 3.0.0. ### Fixed - [SEC002] Moment.js library updated to 2.29.2 / [CVE-2022-24785](https://github.com/advisories/GHSA-8hfj-j24r-96c4). ## [3.1.1] - 2022-02-23 ### Changed - Hugely improved loading speed. - Improved options hit ratio. - In list view, the object's status is now displayed. - The Y-axis and legend of the fragmentation graph are now more readable. - Improved deactivation process - with failsafe. - Implementation of `force` flag to force a refetch rather than relying on the local cache. ### Fixed - The garbage collector may (wrongly) skip some objects. - Ajax calls to save/update posts may not refetch the cache value in some conditions. ## [3.1.0] - 2022-02-15 ### Added - New objects viewer in APCu management tools. - There's now `apcm_objects_list_actions_for_object` and `apcm_objects_list_actions_for_ttl` filters to add custom actions to objects list view. - Experimental support of `wp_cache_*_multi()` functions that will be introduced in WordPress 6.0. - Built-in compatibility with unusual hosting environments and poorly coded plugins or themes (thanks to [Renaud Pacouil](https://www.laboiteare.fr) for suggestion, support & tests). ### Changed - Activating/deactivating object cache setting now forces APCu flush. - Deactivating/uninstalling the plugin now forces APCu flush (thanks to [Renaud Pacouil](https://www.laboiteare.fr) for the idea). - Improved persistent / non-persistent groups handling. - Improved built-in internal cache speed. - Site Health page now presents a much more realistic test about object caching. - Improved coexistence behaviour with other cache management plugins. - The drop-in file is now updated when plugin is updated. ### Fixed - Objects at APCu root have no path in tool list view. - Some options may not be reset when clicking "Reset To Default" button. - In some conditions, the message for updated settings is incomplete. ### Removed - APCu metrics collation from command-line as it was meaningless and can cause issues on some hostings. ## [3.0.1] - 2022-01-17 ### Fixed - The Site Health page may launch deprecated tests. ## [3.0.0] - 2022-01-17 ### Added - NEW: APCu manager may be used as a full object cache drop-in replacement for WordPress caching. - Compatibility with PHP 8.1. - Added containers, paths and icons to APCu Management tool. - Added WordPress and W3TC icons in analytics reports. ### Changed - [BC] The "Delete All" command now flush cache for site or network only. - [BC] The garbage collector now works only on objects belonging to the site or network. - [BC] The APCu Management tool now displays only objects belonging to the site or network. - [BC] The memory fragmentation is now computed from a WordPress point of view: expect a drastic reduction. - Analytics reports are now able to display WordPress object caching KPIs. - APCu Manager now supports non expiring TTL (including garbage collecting operations) - Charts allow now to display more than 2 months of data. - Improved timescale computation and date display for all charts. - Bar charts have now a resizable width. - The hit/miss/insert chart have now swapped values for better readability. - Updated DecaLog SDK from version 2.0.0 to version 2.0.2. - Updated PerfOps One library from 2.2.1 to 2.2.2. - Refactored cache mechanisms to fully support Redis and Memcached. - Improved bubbles display when width is less than 500px (thanks to [Pat Ol](https://profiles.wordpress.org/pasglop/)). - The tables headers have now a better contrast (thanks to [Paul Bonaldi](https://profiles.wordpress.org/bonaldi/)). - Updated documentation and readme files. ### Fixed - The console menu may display an empty screen (thanks to [Renaud Pacouil](https://www.laboiteare.fr)). - Object caching method may be wrongly detected in Site Health status (thanks to [freshuk](https://profiles.wordpress.org/freshuk/)). - There may be name collisions with internal APCu cache. ## [2.6.0] - 2021-12-07 ### Added - Compatibility with WordPress 5.9. - New button in settings to install recommended plugins. - The available hooks (filters and actions) are now described in `HOOKS.md` file. ### Changed - Improved update process on high-traffic sites to avoid concurrent resources accesses. - Better publishing frequency for metrics. - Updated labels and links in plugins page. - X axis for graphs have been redesigned and are more accurate. - Updated the `README.md` file. ### Fixed - Country translation with i18n module may be wrong. ## [2.5.0] - 2021-09-07 ### Added - New menu in the admin bar for "flush APCu" quick action. - It's now possible to hide the main PerfOps One menu via the `poo_hide_main_menu` filter or each submenu via the `poo_hide_analytics_menu`, `poo_hide_consoles_menu`, `poo_hide_insights_menu`, `poo_hide_tools_menu`, `poo_hide_records_menu` and `poo_hide_settings_menu` filters (thanks to [Jan Thiel](https://github.com/JanThiel)). ### Changed - Updated DecaLog SDK from version 1.2.0 to version 2.0.0. ### Fixed - There may be name collisions for some functions if version of WordPress is lower than 5.6. - The main PerfOps One menu is not hidden when it doesn't contain any items (thanks to [Jan Thiel](https://github.com/JanThiel)). - In some very special conditions, the plugin may be in the default site language rather than the user's language. - The PerfOps One menu builder is not compatible with Admin Menu Editor plugin (thanks to [dvokoun](https://wordpress.org/support/users/dvokoun/)). ## [2.4.1] - 2021-08-11 ### Changed - New redesigned UI for PerfOps One plugins management and menus (thanks to [Loïc Antignac](https://github.com/webaxones), [Paul Bonaldi](https://profiles.wordpress.org/bonaldi/), [Axel Ducoron](https://github.com/aksld), [Laurent Millet](https://profiles.wordpress.org/wplmillet/), [Samy Rabih](https://github.com/samy) and [Raphaël Riehl](https://github.com/raphaelriehl) for their invaluable help). ### Fixed - In some conditions, the plugin may be in the default site language rather than the user's language. ## [2.4.0] - 2021-06-22 ### Added - Compatibility with WordPress 5.8. - Integration with DecaLog SDK. - Traces and metrics collation and publication. - New option, available via settings page and wp-cli, to disable/enable metrics collation. ### Changed - [WP-CLI] `apcu status` command now displays DecaLog SDK version too. ## [2.3.0] - 2021-02-24 ### Added - Compatibility with WordPress 5.7. ### Changed - Consistent reset for settings. - Improved translation loading. - [WP_CLI] `apcu` command have now a definition and all synopsis are up to date. ### Fixed - In Site Health section, Opcache status may be wrong (or generates PHP warnings) if OPcache API usage is restricted. ## [2.2.0] - 2020-11-23 ### Added - Compatibility with WordPress 5.6. ### Changed - Improvement in the way roles are detected. - [WP-CLI] Memory analytics now displays total memory and occupation ratio. ### Fixed - [SEC001] User may be wrongly detected in XML-RPC or Rest API calls. - When site is in english and a user choose another language for herself/himself, menu may be stuck in english. ## [2.1.0] - 2020-10-13 ### Added - [WP-CLI] New command to discover exit codes: see `wp help apcu exitcode` for details. - APCu Manager now integrates [Spyc](https://github.com/mustangostang/spyc) as yaml parser. - New "Objects" box in analytics page, displaying objects breakdown. ### Changed - Improved IP detection (thanks to [Ludovic Riaudel](https://github.com/lriaudel)). - [WP-CLI] `wp apcu settings` and `wp apcu analytics` now support `--stdout` flag. - [WP-CLI] Improved `wp apcu analytics` yaml formatting. - [WP-CLI] Improved documentation (with examples). - The analytics dashboard now displays a warning if analytics features are not activated. - Prepares PerfOps menus to future 5.6 version of WordPress. ### Fixed - In admin dashboard, the statistics link is visible even if analytics features are not activated. - Typos in admin screens. - [WP-CLI] Typos in documentation. ### Removed - The "Objects Count" box in analytics page because it was useless. ## [2.0.0] - 2020-09-29 ### Added - [WP-CLI] New command to toggle on/off main settings: see `wp help apcu settings` for details. - [WP-CLI] New command to display APCu Manager status: see `wp help apcu status` for details. - [WP-CLI] New command to display APCu analytics: see `wp help apcu analytics` for details. - Support for APCu multi configuration (web and command-line). - Support for data feeds - reserved for future use. - New Site Health "info" section about shared memory. ### Changed - The positions of PerfOps menus are pushed lower to avoid collision with other plugins (thanks to [Loïc Antignac](https://github.com/webaxones)). - Improved layout for language indicator. - Admin notices are now set to "don't display" by default. - Improved changelog readability. - The integrated markdown parser is now [Markdown](https://github.com/cebe/markdown) from Carsten Brandt. ### Fixed - In some cases, APCu detection may cause a PHP Warning. - With Firefox, some links are unclickable in the Control Center (thanks to [Emil1](https://wordpress.org/support/users/milouze/)). ### Removed - Parsedown as integrated markdown parser. ## [1.3.0] - 2020-07-20 ### Added - Compatibility with WordPress 5.5. - Garbage collector for out-of-date cached objects (see "PerfOps Settings" > "APCu Manager"). ## [1.2.3] - 2020-06-29 ### Changed - Full compatibility with PHP 7.4. - Automatic switching between memory and transient when a cache plugin is installed without a properly configured Redis / Memcached. ### Fixed - When used for the first time, settings checkboxes may remain checked after being unchecked. ## [1.2.2] - 2020-05-05 ### Changed - The charts take now care of DST in user's browser. - The daily distribution charts have now a better timeline. ## [1.2.1] - 2020-05-04 ### Fixed - There's an error while activating the plugin when the server is Microsoft IIS with Windows 10. - With Microsoft Edge, some layouts may be ugly. ## [1.2.0] - 2020-04-12 ### Added - Compatibility with [DecaLog](https://wordpress.org/plugins/decalog/) early loading feature. ### Changed - The settings page have now the standard WordPress style. - Better styling in "PerfOps Settings" page. - In site health "info" tab, the boolean are now clearly displayed. ### Removed - Unneeded tool links in settings page. ## [1.1.0] - 2020-03-01 ### Added - Full integration with PerfOps One suite. - Compatibility with WordPress 5.4. ### Changed - New menus (in the left admin bar) for accessing features: "PerfOps Analytics", "PerfOps Tools" and "PerfOps Settings". - Analysis delta time has been increased to avoid holes in stats when cron is not fully reliable. ### Fixed - With some plugins, box tooltips may be misplaced (css collision). ### Removed - Compatibility with WordPress versions prior to 5.2. - Old menus entries, due to PerfOps integration. ## [1.0.0] - 2020-01-09 - Initial release