diff --git a/CHANGELOG.md b/CHANGELOG.md
index b0a83253..b0c33ebe 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 Changelog
 =========
 
+#### Development
+
+- Bump required PHP version to 7.2.
+
+
 #### 4.9.17 - Sep 17, 2024
 
 - Fix compatibility with WooCommerce versions 8.5 to 8.8 because of private method that was later made public.
diff --git a/README.md b/README.md
index 0f1049a3..20111a4e 100755
--- a/README.md
+++ b/README.md
@@ -9,6 +9,13 @@ MC4WP: Mailchimp for WordPress
 
 Here, you can browse the source code of the [MC4WP: Mailchimp for WordPress Plugin](https://wordpress.org/plugins/mailchimp-for-wp/), find and discuss open issues or contribute code to the plugin.
 
+Requirements
+--------------
+
+- PHP version 7.2 or higher
+- WordPress version 4.6 or higher
+
+
 Installation
 ------------
 
diff --git a/composer.json b/composer.json
index 5759f22d..bb283afc 100755
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
 		"source": "https://github.com/ibericode/mailchimp-for-wordpress"
 	},
 	"require": {
-		"php": ">=5.6"
+		"php": ">=7.2"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^9.0",
diff --git a/mailchimp-for-wp.php b/mailchimp-for-wp.php
index a12c878e..3eec22fc 100755
--- a/mailchimp-for-wp.php
+++ b/mailchimp-for-wp.php
@@ -41,8 +41,8 @@ function _mc4wp_load_plugin()
         return;
     }
 
-    // don't run if PHP version is lower than 5.6
-    if (PHP_VERSION_ID < 50600) {
+    // don't run if PHP version is lower than 7.2.0
+    if (PHP_VERSION_ID < 70200) {
     	return;
     }
 
diff --git a/readme.txt b/readme.txt
index 7bb4bb18..e4bf43bf 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,10 +4,10 @@ Donate link: https://www.mc4wp.com/contribute/#utm_source=wp-plugin-repo&utm_med
 Tags: mailchimp, subscribe, email, newsletter, form
 Requires at least: 4.6
 Tested up to: 6.6
-Stable tag: 4.9.17
+Stable tag: 4.9.17
 License: GPLv3 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
-Requires PHP: 5.6
+Requires PHP: 7.2
 
 The #1 Mailchimp plugin for WordPress. Allows you to add a multitude of newsletter sign-up methods to your site.
 
@@ -26,21 +26,21 @@ This plugins helps you grow your email list in Mailchimp. You can use it to crea
 - Sign-up forms which are good looking, user-friendly and mobile optimized. You have complete control over the form fields and can build your forms using native HTML.
 
 - Seamless integration with the following plugins:
-    - WordPress Comment Form
-    - WordPress Registration Form
-    - Contact Form 7
-    - WooCommerce
-    - Gravity Forms
-    - Ninja Forms 3
-    - WPForms
-    - BuddyPress
-    - MemberPress
-    - Events Manager
-    - Easy Digital Downloads
-    - Give
-    - UltimateMember
-    - HTML Forms
-    - AffiliateWP
+	- WordPress Comment Form
+	- WordPress Registration Form
+	- Contact Form 7
+	- WooCommerce
+	- Gravity Forms
+	- Ninja Forms 3
+	- WPForms
+	- BuddyPress
+	- MemberPress
+	- Events Manager
+	- Easy Digital Downloads
+	- Give
+	- UltimateMember
+	- HTML Forms
+	- AffiliateWP
 
 - Is the plugin you want to integrate with not listed above? You can probably still use our [custom integration](https://www.mc4wp.com/kb/add-subscribe-checkbox-custom-form/) feature. Alternatively, the plugin comes with a PHP API to programmatically add a new subscriber to Mailchimp.
 
@@ -187,1011 +187,1011 @@ The plugin provides various filter and action hooks that allow you to modify or
 9. Settings page for e-commerce integration with Mailchimp. Requires [Mailchimp for WordPress Premium](https://www.mc4wp.com/).
 
 == Changelog ==
-
-
-#### 4.9.17 - Sep 17, 2024
-
-- Fix compatibility with WooCommerce versions 8.5 to 8.8 because of private method that was later made public.
-- Fix potential reflected XSS by stripping and escaping all HTML from `{email}` tag replacements. Thanks to kauenavarro for responsibly disclosing.
-- Fix potential stored XSS for attackers with both administrator access and Mailchimp account access by escaping HTML from interest group name. Thanks to Jorge Diaz (ddiax) for responsibly disclosing.
-
-
-#### 4.9.16 - Sep 11, 2024
-
-- Add support for WooCommerce Checkout Block in sign-up checkbox integration.
-
-
-#### 4.9.15 - Aug 13, 2024
-
-- Improved anti-spam measures on the [custom form integration](https://www.mc4wp.com/kb/subscribe-mailchimp-custom-html-form/). If you are using the custom form integration (using the `mc4wp-subscribe` checkbox), please test your forms after upgrading and report any issues to us.
-- Improved anti-spam measures on all sign-up forms.
-- Remove unsupported filter hook from Gravity Forms integration. 
-
-
-#### 4.9.14 - Jul 17, 2024
-
-- Very minor code-size improvements to public forms related JavaScript.
-- Update third-party JS dependencies.
-- Bump tested WordPress version to 6.6.
-
-
-#### 4.9.13 - Apr 25, 2024
-
-- Fix issue with Composer classmap throwing a fatal error when an older version of Composer is already loaded.
-
-
-#### 4.9.12 - Apr 22, 2024 
-
-- Fix last 10 Mailchimp lists not being pulled-in when having more than 10 lists.
-
-
-#### 4.9.11 - Jan 8, 2024
-
-- Update third-party JS dependencies.
-- Bump tested WordPress version.
-
-
-#### 4.9.10 - Nov 20, 2023
-
-- Integrations: Update CheckoutWC hook name for WooCommerce checkbox integration.
-- Forms: Don't show form preview to users without `edit_posts` capability.
-- Forms: Explicitly exclude form preview from search engine indexing.
-- General: Don't unnecessarily go through service contrainer while bootstrapping plugin.
-- General: Remove some unnecessary JavaScript now that browser support has caught up.
-
-
-#### 4.9.9 - Oct 3, 2023 
-
-- Fix class "MC4WP_Usage_Tracking" not found error for WP Cron / WP CLI processes.
-
-
-#### 4.9.8 - Oct 3, 2023
-
-- Remove the opt-in usage tracking functionality as we're not really using it for decision making anymore.
-- Add missing label element to the select element for setting the logging level.
-- Our JavaScript assets are now transpiled to support the same set of browsers as WordPress core. 
-This drops support for some very old browsers, but results in smaller bundle sizes for the supported set of browsers.
-- Update third-party JS dependencies to their latest versions.
-
-
-#### 4.9.7 - Aug 29, 2023
-
-- Update third-party JS dependencies.
-- Minor textual improvements.
-- Bump tested WordPress version.
-
-
-#### 4.9.6 - Jul 12, 2023
-
-- Update third-party JS dependencies.
-- Address some minor codestyle issues.
-
-
-#### 4.9.5 - Jun 7, 2023
-
-- Fix generated HTML for list/audience choice fields.
-- Fix deprecation warning in includes/admin/class-review-notice.php.
-- Update JavaScript dependencies.
-
-
-#### 4.9.4 - May 2, 2023
-
-- Fallback to default checkbox label if none given. Thanks to [Shojib Khan](https://github.com/kshojib).
-- Improve WooCommerce integration settings page by disabling position field if integration is disabled. Thanks to [Shojib Khan](https://github.com/kshojib).
-- Update JavaScript dependencies.
-
-
-#### 4.9.3 - Mar 31, 2023
-
-- Defend against breaking change in latest WPForms update.
-
-
-#### 4.9.2 - Mar 21, 2023
-
-- Add support for a field named `MARKETING_PERMISSIONS` to enable GDPR fields configured in Mailchimp. A [sample code snippet can be found here](https://github.com/ibericode/mailchimp-for-wordpress/blob/master/sample-code-snippets/forms/gdpr-marketing-permissions.md).
-- Remove Google reCaptcha feature. This was already disabled if you were not already using it.
-
-
-#### 4.9.1 - Feb 7, 2023
-
-- Fix generated value attribute for fields of type choice (dropdown, checkboxes, radio fields).
-- Fix type of `marketing_permissions` field in API requests. Thanks to [George Korakas](https://github.com/gkorakas-eli).
-- Refactor list overview JS to not depend on Mithril.js anymore.
-- Simplify admin footer text asking for a plugin review.
-- When renewing lists, renew cached marketing permissions too.
-
-
-#### 4.9.0 - Jan 13, 2023 
-
-- Removed deprecated filter hook `mc4wp_settings_cap`, use `mc4wp_admin_required_capability` instead.
-- Removed deprecated filter hook `mc4wp_merge_vars`, use `mc4wp_form_data` or `mc4wp_integration_data` instead.
-- Removed deprecated filter hook `mc4wp_form_merge_vars`, use `mc4wp_form_data` instead.
-- Removed deprecated filter hook `mc4wp_integration_merge_vars`, use `mc4wp_integration_data` instead.
-- Removed deprecated filter hook `mc4wp_valid_form_request`, use `mc4wp_form_errors` instead.
-- Removed deprecated function `mc4wp_get_api()` and deprecated class `MC4WP_API`.
-- Removed deprecated function `mc4wp_checkbox()`.
-- Removed deprecated function `mc4wp_form()`, use `mc4wp_show_form()` instead.
-- Added filter `mc4wp_debug_log_message` to modify or disable messages that are written to the debug log.
-- Fix color of invalid Mailchimp API key notice.
-- Sanitize IP address value from `$_SERVER['REMOTE_ADDR']` too.
-- Fetch GDPR marketing permissions via first subscriber on list and show them in lists overview table.
-
-
-#### 4.8.12 - Dec 06, 2022
-
-- Minor performance, memory usage & size optimizations for all JavaScript code bundled with this plugin.
-
-
-#### 4.8.11 - Nov 1, 2022
-
-- Improved default styling for the WooCommerce sign-up checkbox integration.
-- Add `<strong>` to allowed HTML elements for GDPR disclaimer text on settings pages.
-- Remove all references to obsolete placeholders.js polyfill.
-- Move the GiveWP sign-up checkbox closer to the email input field. Thanks [Matthew Lewis](https://github.com/Matthew-Lewis).
-
-
-#### 4.8.10 - Sep 14, 2022
-
-- Fix mc4wp_get_request_ip_address() to return an IP address that matches Mailchimp's validation format when X-Forwarded-For header contains a port component.
-
-
-#### 4.8.8 - Aug 25, 2022
-
-- Fix mc4wp_get_request_ip_address() to pass new Mailchimp validation format. This fixes the "This value is not a valid IP." error some users using a proxy may have been seeing.
-
-
-#### 4.8.7 - Mar 2, 2022
-
-- Fix PHP 8.1 deprecation warnings in `MC4WP_Container` class.
-- Fix name of action hook that fires before Mailchimp settings rows are displayed on the settings page. Thanks [LoonSongSoftware](https://github.com/LoonSongSoftware).
-- Improve WPML compatibility. Thanks [Sumit Singh](https://github.com/5um17).
-- Fix deprecated function for AMP integration.
-- Only allow unfiltered HTML if user has `unfiltered_html` capability. Please read the below.
-
-Despite extensive testing, we may have missed some more obscure HTML elements or attributes from our whitelist.
-If you notice that some of your form HTML is stripped after saving your form, please get in touch with our support team and provide the HTML you attempted to save.
-
-
-#### 4.8.6 - Jun 24, 2021
-
-- Add nonce field to button for dismissing notice asking for plugin review.
-- Add strings from config/ directory to POT file.
-- Add nonce check to AJAX endpoint for refreshing cached Mailchimp lists.
-- Add capability check to AJAX endpoint for retrieving list details.
-- Schedule event to refresh cached Mailchimp list upon plugin activation.
-
-Thanks to the team over at [pluginvulnerabilities.com](https://www.pluginvulnerabilities.com/) for bringing some of these changes to our attention.
-
-
-#### 4.8.5 - Jun 1, 2021
-
-Add nonce verification to all URL's using `_mc4wp_action` query parameter.
-This fixes a CSRF vulnerability where a malicious website could trick a logged-in admin user in performing unwanted actions.
-
-A special thanks to Erwan from [WPScan](https://wpscan.com/) for bringing this issue to our attention.
-
-
-#### 4.8.4 - May 7, 2021
-
-- Add `defer` attribute to JS file, so page parsing isn't blocked at all.
-- Rewrite plugin CSS to optimize for selector performance and get rid of some duplication.
-
-After installing this update, make sure to also update any add-on plugins like [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/) and [Mailchimp Top Bar](https://wordpress.org/plugins/mailchimp-top-bar/).
-
-
-#### 4.8.3 - Jan 21, 2021
-
-- Fix fatal error on older PHP versions when submitting form without any subscriber tags set in the form settings.
-- Minor performance improvement in bootstrap method of the plugin.
-
-
-#### 4.8.2 - Jan 20, 2021
-
-- Allow short-circuiting `mc4wp_subscriber_data` filter by returning `null` or `false`.
-- Use a subdirectory for the default debug log file location, so that it's easier to protect using htaccess.
-- Improved reliability for fetching lists from mailchimp when lists have high stats.member_count property.
-
-
-#### 4.8.1 - Aug 25, 2020
-
-- Fix notice by explicitly setting `permission_callback` on registered REST route.
-- Minor internal code improvements.
-
-#### 4.8 - Jul 9, 2020
-
-- Plugin now requires PHP 5.3 or higher.
-- Prefix overlay classname to prevent styling collissions with other plugins.
-- Form sign-ups can now add tags to both new and existing subscribers.
-- Update JavaScript dependencies.
-- Register script early to work with Gutenberg preview.
-
-
-#### 4.7.8 - Jun 04, 2020
-
-- Add `MC4WP_API_V3::add_template` method.
-- Minor code hardening to ensure a default form is always set.
-- Update JS dependencies to their latest versions.
-- Fix icon for Gutenberg block.
-
-
-#### 4.7.7 - Apr 28, 2020
-
-- Update JS dependencies to their latest versions.
-- API client `add_list_member` method now has an additional parameter to skip merge field validation.
-- Simplify code for updating an existing form.
-
-
-#### 4.7.6 - Apr 9, 2020
-
-- Update JS dependencies to their latest versions.
-- Check if className is of type string, fixes a console warning when clicking inside a SVG element.
-- Minor improvements to the AMP implementation to address harmless validation warnings.
-
-
-#### 4.7.5 - Feb 10, 2020
-
-- Add AMP compatibility to sign-up forms, thanks to Claudiu Lodromanean. This uses the [official AMP plugin for WordPress](https://amp-wp.org).
-- Add settings key to WPML config so settings can easily by copied over to translated versions of a form.
-- Optimize size & performance of JavaScript code, resulting in a file that is 40% smaller.
-- Update CodeMirror to its latest version.
-- Escape all string translations.
-
-
-#### 4.7.4 - Dec 7, 2019
-
-**Fixes**
-
-- htaccess config for servers running Apache 2.4 or later.
-
-
-#### 4.7.3 - Dec 4, 2019
-
-**Fixes**
-
-- Top Bar & User Sync add-on using API v2 since version 4.7.1.
-- Revert change in formatter for date fields, breaking all forms with date fields in them.
-
-**Improvements**
-
-- Add getter method for raw (unmodified) data on form class.
-
-
-#### 4.7.2 - Nov 27, 2019
-
-**Fixes**
-
-- Invalid .htaccess file in case there already is one in the uploads directory.
-
-
-#### 4.7.1 - Nov 26, 2019
-
-**Improvements**
-
-- Update MemberPress hook names. Thanks [Ian Heggaton](https://github.com/pixelated-au)!
-- Use WordPress.org translations instead of bundling translation files in plugin itself.
-- Write .htaccess to directory of debug log file, to prevent file access.
-- Add some convenient hooks for Checkout for WooCommerce.
-- Stop parsing shortcodes in text widgets as WordPress core does this since version 4.9.
-
-
-#### 4.7 - Nov 7, 2019
-
-**Improvements**
-
-- Add role=alert to form notices.
-- Add setting to pre-check sign-up checkbox for Gravity Forms integrations.
-- Add new position for WooCommerce integration: directly after the billing_email field.
-- Fix PHP notices for submitting a form and saving a form as an administrator.
-- Add link to [Koko Analytics plugin](https://wordpress.org/plugins/koko-analytics/).
-
-
-#### 4.6.2 - Oct 24, 2019
-
-**Fixes**
-
-- Address fields in forms would always be required (even if really optional).
-
-**Improvements**
-
-- Add proper SVG admin menu icon.
-- Minor overall performance and memory usage improvements.
-
-
-#### 4.6.1 - Oct 7, 2019
-
-**Fixes**
-
-- Fixed list cache usage for WPForms, Gravity Forms and Ninja Forms integrations.
-
-
-#### 4.6.0 - Oct 7, 2019
-
-**Improvements**
-
-- Improved fetch and cache mechanism for retrieving Mailchimp account details, fetching data only when it is required.
-- Updated [Mithril](https://mithril.js.org/) and [CodeMirror](https://codemirror.net/) dependencies.
-- Decreased size of `forms.js` from 22KB to 9KB.
-- No longer requiring jQuery anywhere.
-- Increase API HTTP request timeout to 15 seconds.
-
-Please note that installing this update requires you to also update any add-ons like [Mailchimp Top Bar](https://wordpress.org/plugins/mailchimp-top-bar/) and [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/) (if installed).
-
-
-#### 4.5.5 - Sep 12, 2019
-
-**Fixes**
-
-- Google reCAPTCHA script was still loading even if no forms have it enabled.
-
-
-#### 4.5.4 - Sep 11, 2019
-
-**Improvements**
-
-- Removed custom color from menu item for improved accessibility.
-- Take birthday field format into account when sending data to Mailchimp.
-- Print Google reCAPTCHA script in footer.
-
-**Changes**
-
-- Changed plugin name to MC4WP instead of Mailchimp for WordPress.
-
-
-#### 4.5.3 - July 23, 2019
-
-**Fixes**
-
-- Temporarily switch status of pending subscribers to "unsubscribe" versus deleting susbcriber before re-subscribing.
-- Deprecation notice for Gravity Forms version 2.4 and higher.
-
-**Improvements**
-
-- Filter out empty tags when applying tags to new subscribers.
-- Show all not installed integrations.
-- Show notice when form doesn't have a Mailchimp list selected to subscribe people to.
-- Check function existence for compatibility with WordPress 4.7
-- Don't submit form when Google reCAPTCHA is enabled but errors.
-- Update third-party JavaScript dependencies.
-
-
-#### 4.5.2 - May 8, 2019
-
-**Improvements**
-
-- Accept more truthy values in custom integration for improved compatibility with third-party forms.
-- Update JavaScript dependencies.
-- Load Google reCaptcha script in footer (if needed).
-
-
-#### 4.5.1 - April 8, 2019
-
-**Additions**
-
-- Add sign-up integration for [Give](https://wordpress.org/plugins/give/)
-- Add sign-up integration for [UltimateMember](https://wordpress.org/plugins/ultimate-member/)
-
-**Improvements**
-
-- Write to debug log if Google reCAPTCHA secret key is incorrect.
-- Validate reCAPTCHA keys when savings form settings.
-- Allow setting an empty "successfully subscribed" message.
-
-
-#### 4.5.0 - March 27, 2019
-
-**Additions**
-
-- Built-in integration with Google reCAPTCHA to prevent bots from subscribing to your Mailchimp lists.
-
-**Improvements**
-
-- Minor improvements to the JavaScript that is loaded on admin pages.
-
-
-#### 4.4.0 - March 1, 2019
-
-**Fixes**
-
-- AffiliateWP integration subscribing the wrong user if affiliate ID differs from user ID.
-
-**Improvements**
-
-- Renamed "MailChimp" to "Mailchimp" to match Mailchimp's new branding.
-- More accurate handling of timeouts for accounts with many MailChimp lists.
-- UX improvements for integrations overview page.
-- Validate MailChimp API key format when it's entered.
-- Improved compatibility with Klarna Checkout in the WooCommerce checkout integration.
-- Bumped required PHP version to 5.3 (soft requirement for now).
-
-**Additions**
-
-- Added Gutenberg block for easily adding a form to a post or page.
-- Added subscriber tags setting to forms.
-
-
-#### 4.3.3 - December 31, 2018
-
-**Fixes**
-
-- Update WPForms integration to properly detect if the WPForms plugin is activated.
-
-**Improvements**
-
-- Write API request parameters to the debug log in case of connection timeouts.
-- Update JavaScript dependencies.
-
-
-#### 4.3.2 - December 11, 2018
-
-**Fixes**
-
-- Use of `readonly` function, which is only available in WordPress 4.9 or later.
-
-
-#### 4.3.1 - November 28, 2018
-
-**Fixes**
-
-- Fatal error on PHP versions older than 5.5
-
-
-#### 4.3 - November 28, 2018
-
-**Additions**
-
-- Added `MC4WP_API_KEY` PHP constant which can be used to set your Mailchimp API key.
-- Add `mc4wp_mailchimp_list_limit` filter hook to modify the maximum number of Mailchimp lists to fetch. Defaults to 200.
-
-**Improvements**
-
-- Apply `mc4wp_integration_gravity-forms_options` filter hook on Gravity Forms integration options so the checkbox can be prechecked and the checkbox label text modified.
-- The `updated_subscriber` JS event is now fired forms not using AJAX as well (when applicable).
-
-
-#### 4.2.5 - Sep 11, 2018
-
-**Improvements**
-
-- Only re-add subscriber to list if we want to re-trigger a double opt-in confirmation email.
-- Change Gravity Forms field name to "Mailchimp for WordPress"
-- Get rid of cached result of Mailchimp API connection.
-
-
-#### 4.2.4 - July 9, 2018
-
-**Improvements**
-
-- Ensure type-safety on some global variables.
-- Stop showing trashed forms immediately.
-- Pre-check Mailchimp list when creating a new form if there is only 1 list.
-- Send `null` for unknown values in usage tracking data (only when opted-in).
-
-**Additions**
-
-- Add methods for accessing Mailchimp's e-commerce promo code endpoints to API class.
-
-
-#### 4.2.3 - June 11, 2018
-
-**Fixes**
-
-- Don't wrap "agree to terms" input in hyperlink element.
-- Allow [ENTER] key again after field helper overlay is closed.
-
-**Improvements**
-
-- Fallback to meta-refresh if redirect fails because of "headers already sent" error.
-
-
-
-#### 4.2.2 - May 22, 2018
-
-**Fixes**
-
-- Events Manager integration was not working with logged-in users.
-- Form preview URL should respect admin HTTP(S) scheme.
-- Removed use of PHP 5.4 function.
-
-**Improvements**
-
-- Add "agree to terms" checkbox to field helper.
-
-**Additions**
-
-- Add filter `mc4wp_http_request_args`.
-
-
-#### 4.2.1 - April 11, 2018
-
-**Fixes**
-
-- Namespace usage warning when running PHP 5.2
-
-**Improvements**
-
-- Remove obsolete `type` attribute from all `<script>` tags printed by the plugin.
-- Improved tooltips on settings pages.
-- Do not pre-check integration checkboxes by default.
-- Add textual warnings to settings that may affect [GDPR compliance](https://www.mc4wp.com/kb/gdpr-compliance/).
-- Update translation files.
-
-#### 4.2 - March 5, 2018
-
-**Additions**
-
-- Live form preview while editing form.
-
-**Improvements**
-
-- Improved [conditional fields logic](https://www.mc4wp.com/kb/conditional-fields-elements/).
-- Debug log now includes request & response data.
-- [Form JavaScript events](https://www.mc4wp.com/kb/javascript-form-events/) are fired in an isolated thread now, to prevent errors in event callbacks from breaking form functionality.
-- Don't send empty field values to Mailchimp when updating subscribers.
-- Show interest grouping ID in list overview on settings page.
-
-**Fixes**
-
-- Ninja Forms export checkbox would always state "checked" when form contained a Mailchimp sign-up checkbox.
-
-
-
-#### 4.1.15 - February 7, 2018
-
-**Fixes**
-
-- Dropdown fields with special characters were not properly passed to Mailchimp.
-- Interest groups with an all-numeric ID were not properly passed to Mailchimp.
-
-**Improvements**
-
-- Various minor code optimizations
-- Do not redirect when showing "already subscribed" warning.
-- Improved scroll to form handling after a form is submitted without AJAX.
-
-
-#### 4.1.14 - January 8, 2018
-
-**Fixes**
-
-- Validate method was incorrectly checking required array fields.
-
-**Improvements**
-
-- Wrap some missing strings in translate calls. Thanks [morlor](https://github.com/morloi).
-- Make it clear that redirecting after successful form submissions will not show the "subscribed" message.
-
-
-
-#### 4.1.13 - December 28, 2017
-
-**Fixes**
-
-- Array to string conversion in default form messages.
-
-**Additions**
-
-- Allow marking Gravity Forms sign-up checkbox as a required field.
-
-
-#### 4.1.12 - December 11, 2017
-
-**Fixes**
-
-- Ninja Forms double opt-in setting was incorrectly inversed.
-
-**Improvements**
-
-- Simplified form processing & notice logic.
-- Prevent 404 errors by proactively replacing lowercased `name="name"` input attributes.
-- Updated JavaScript dependencies.
-
-**Additions**
-
-- Integration for AffiliateWP.
-
-
-#### 4.1.11 - November 2, 2017
-
-**Fixes**
-
-- Filter out empty array values when overriding selected Mailchimp lists via `_mc4wp_lists`.
-
-**Improvements**
-
-- Updated JavaScript dependencies.
-
-**Additions**
-
-- Link to the [HTML Forms](https://www.htmlforms.io/) from the plugin settings pages.
-
-
-#### 4.1.10 - October 19, 2017
-
-**Improvements**
-
-- Remove unused options from Ninja Forms integration.
-- Now logging all sign-ups from Ninja Forms integrations when using [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/).
-
-**Additions**
-
-- Added Gravity Forms integration. You can now integrate with Gravity Forms by adding the "Mailchimp" field to your forms.
-
-
-#### 4.1.9 - September 19, 2017
-
-**Improvements**
-
-- Add `<label>` element to sign-up checkbox for WCAG compatibility.
-- Custom integration now works with Enfold theme's contact form element.
-
-
-#### 4.1.7 & 4.1.8 - September 8, 2017
-
-**Fixes**
-
-- Properly escape the return value of `add_query_arg` when it is used in HTML attributes to prevent cross-site scripting. Thanks to [Karim Ouerghemmi of RIPS](https://www.ripstech.com/) for responsibly disclosing.
-- Now loading integrations after WPML so that String Translations work properly.
-
-**Additions**
-
-- Add sign-up integration for WPForms forms.
-
-**Improvements**
-
-- Updated internal JS dependencies.
-- Form tag `{data key="foo.bar"}` now allows you to access nested array values.
-
-
-#### 4.1.6 - July 31, 2017
-
-**Fixes**
-
-- Method on API class for retrieving campaign data.
-
-**Improvements**
-
-- Show Akamai reference number when an API request is blocked by Mailchimp's firewall.
-- Minor output buffering improvements in form previewer.
-
-
-#### 4.1.5 - June 27, 2017
-
-**Fixes**
-
-- Failsafe against outputting sign-up checkbox twice in registration forms.
-- Properly close HTML anchor element in French translation files.
-- Fix BuddyPress sign-ups when using WordPress Multisite.
-
-**Improvements**
-
-- Fire action hook `mc4wp_form_updated_subscriber` whenever a form was used to update a subscriber in Mailchimp.
-- Increase browser timeout for AJAX request when fetching Mailchimp lists.
-
-**Additions**
-
-- Added campaign & template methods to API client class.
-
-
-
-#### 4.1.4 - June 15, 2017
-
-**Fixes**
-
-- Some form specific JS events were not firing due to incorrect event names.
-- Registration form integration now works with WooCommerce registration form.
-- Notice that asks for a plugin review would re-appear after dismissing it.
-
-
-#### 4.1.3 - May 24, 2017
-
-**Improvements**
-
-- Randomise time of cron event that renews Mailchimp lists.
-- Always try to show Mailchimp list info when API key is given.
-
-
-#### 4.1.2 - May 8, 2017
-
-**Fixes**
-
-- Use earlier hook priority for Ninja Forms 3 integration so action is registered on time.
-
-**Improvements**
-
-- Improved Mailchimp list fetching & memory usage for accounts with many lists.
-- Show error message when fetching lists fails.
-- Updated plugin translations.
-
-#### 4.1.1 - April 11, 2017
-
-**Fixes**
-
-- WPML String Translation not working with the checkbox label for sign-up integrations.
-
-**Improvements**
-
-- Use updated order methods when using WooCommerce 3.0, thanks to Liam McArthur.
-- Updated JavaScript dependencies.
-
-
-#### 4.1.0 - March 14, 2017
-
-**Improvements**
-
-- Updated all JavaScript dependencies in the plugin.
-- Failsafed filter hooks to prevent invalid variable types.
-- Explain that greyed out integrations means that specific plugin is not activated.
-- Conditional form elements now uses event delegation, so it works with forms in [Boxzilla pop-ups](https://boxzillaplugin.com/).
-- Updated language files.
-
-**Additions**
-
-- Added support for Ninja Forms 3.
-- Added `mc4wp_integration_show_checkbox` filter.
-
-
-#### 4.0.13 - February 8, 2017
-
-**Improvements**
-
-- Ensure fields are HTML decoded before sending to Mailchimp.
-- Better OptimizePress compatibility.
-- Show all address-type fields as required when form contains 1 or more fields of the same address group.
-
-
-#### 4.0.12 - January 16, 2017
-
-**Fixes**
-
-- Don't call `stripslashes` on POST data twice.
-
-**Improvements**
-
-- Plugin review notice is now dismissible over AJAX.
-- Improved formatting of birthday fields.
-- Updated Polish translations, thanks to Mateusz Lomber.
-- Updated German translations, thanks to Sven de Vries.
-
-**Additions**
-
-- Add `update_ecommerce_store_product` method to API class.
-- Throw form specific JavaScript events, like `15.subscribed` to hook into "subscribed" events for form with ID 15.
-
-
-#### 4.0.11 - December 9, 2016
-
-**Fixes**
-
-- Unescaped request variable on integration settings page, allowing for authenticated XSS. Thanks to [dxwsecurity](https://security.dxw.com/) for responsibly disclosing.
-
-**Improvements**
-
-- Add `$args` parameter to `API::get_lists_activity` method. Relates to the [Mailchimp Activity](https://wordpress.org/plugins/mc4wp-activity/) plugin.
-
-
-#### 4.0.10 - December 6, 2016
-
-**Improvements**
-
-- You can now enable or disable debug logging from the "Other" settings page.
-- No longer using deprecated function in Contact Form 7, thanks to [stodorovic](https://github.com/stodorovic).
-- Improved UI for adding hidden interest groupings fields to a form.
-
-
-#### 4.0.9 - November 23, 2016
-
-**Fixes**
-
-- Issue with escaped HTML when using form tags introduced by previous update.
-
-
-#### 4.0.8 - November 23, 2016
-
-**Improvements**
-
-- Improved handling of large debug logs.
-- Improved error messages when writing exceptions to debug log.
-- Show notice when form is missing required Mailchimp fields.
-- Custom form integration now handles arrays with 1-level depth. Thanks to [Mardari Igor](https://github.com/GarryOne).
-- You can now use nested tags in your form code, eg `{data key="utm_source" default="{current_path}"}`
-
-**Additions**
-
-- Add `data-hide-if` attribute logic to forms. See [conditionally hide form fields](https://www.mc4wp.com/kb/conditional-fields-elements/). Thanks to [Kurt Zenisek](http://kurtzenisek.com/).
-- Add hooks for delayed BuddyPress sign-up. Thanks to [Christian Wach](https://profiles.wordpress.org/needle).
-
-
-#### 4.0.7 - October 25, 2016
-
-**Improvements**
-
-- Obfuscate all email addresses in debug log. Thanks [Sauli Lepola](https://twitter.com/SJLfi).
-- Ask for confirmation before disabling double opt-in, which we do not recommend.
-- Allow vertical resizing of debug log.
-- Failsafe against including JavaScript file twice.
-- No longer wrapping CF7 checkbox in paragraph tags.
-
-**Additions**
-
-- Added `mc4wp_form_api_error` action hook for API errors encountered by forms.
-- Added `element_class` argument to `[mc4wp_form]` shortcode for adding CSS classes.
-
-
-#### 4.0.6 - October 10, 2016
-
-**Fixes**
-
-- Issue with lists not showing when using W3 Total Cache with APCu object cache enabled.
-
-**Improvements**
-
-- We're no longer stripping newlines from text fields.
-
-**Additions**
-
-- Added missing e-commerce related API methods to API class.
-
-
-#### 4.0.5 - September 29, 2016
-
-**Fixes**
-
-- Allow checkbox option for the List Choice field (again).
-
-**Improvements**
-
-- Fetch Mailchimp lists over AJAX, to speed up perceived performance (especially when your account has many lists).
-- Periodically fetch Mailchimp lists, so cache is always fresh.
-- Improved `<label>` element accessibility for checkbox integrations.
-- Stop using double underscore prefix in function names, as these are reserved in PHP 7.
-- `{post}` and `{user}` shortcodes now accept a `default` parameter.
-
-**Additions**
-
-- Add [MemberPress](https://www.memberpress.com/) integration.
-- Add missing e-commerce related API methods for next week's [WooCommerce Mailchimp e-commerce integration](https://www.mc4wp.com/kb/what-is-ecommerce/) release.
-
-
-#### 4.0.4 - September 7, 2016
-
-**Improvements**
-
-- Allow re-running previous migrations by visiting a certain admin URL.
-- Do not show checkboxes option for fields that only accept a single value.
-- Write field specific errors to debug log when Mailchimp denies a sign-up request.
-- Write to debug log when custom integrations can not find an EMAIL field.
-- Differentiate between connection & authorization errors when testing connection to Mailchimp.
-- Bump limit of number of Mailchimp lists to fetch from 100 to 500.
-
-
-#### 4.0.3 - August 24, 2016
-
-**Fixes**
-
-- Ninja Forms integration not working when using PayPal integration.
-
-**Improvements**
-
-- Show connection errors on Mailchimp settings page.
-
-**Additions**
-
-- Add pre-checked option to Ninja Forms integration.
-- You can now [conditionally hide fields or elements](https://www.mc4wp.com/kb/conditional-fields-elements/) using the `data-show-if` attribute.
-
-
-#### 4.0.2 - August 10, 2016
-
-**Fixes**
-
-- Hidden fields which referenced interest groups by name were not sent to Mailchimp.
-- Adding hidden field to form would reset value on every change.
-
-**Improvements**
-
-- Decrease file size of JavaScript for forms by about 30%.
-
-
-#### 4.0 & 4.0.1 - August 9, 2016
-
-This release updates the plugin to version 3 of the Mailchimp API. Please [read through the upgrade guide](https://www.mc4wp.com/kb/upgrading-to-4-0/) before updating to make sure things keep working as expected for you.
-
-**Changes**
-
-- "Send welcome email" is now handled from your list settings in Mailchimp.
-- Filter `mc4wp_form_merge_vars` is now called `mc4wp_form_data`.
-- Filter `mc4wp_integration_merge_vars` is now called `mc4wp_integration_data`.
-- New format for GROUPING fields in forms & filter hooks.
-- Value delimiter in hidden fields is now a pipe `|` character.
-
-**Additions**
-
-- New filter: `mc4wp_form_subscriber_data`.
-- New filter: `mc4wp_integration_subscriber_data`.
-- New form tag: `{cookie name="mycookie"}`
-
-**Improvements**
-
-- The plugin now communicates with the latest & greatest Mailchimp API.
-- Previously unsubscribed subscribers can now be re-added without errors.
-- Add `User-Agent` header to all API requests.
-- Available fields in form editor are now split-up by category.
-- Birthday fields now accept a broader range of values and delimiters.
-
-**Fixes**
-
-- Issue with only 10 Mailchimp lists / fields / interests being returned.
-- Incorrect form message showing when double opt-in is disabled.
-- Error in upgrade routine when API request fails.
-- List fields not fetched when list has just 1 non-default merge field.
-
-
-#### 3.1.12 - July 28, 2016
-
-**Improvements**
-
-- Smarter scrolling after submitting form & reloading page.
-- Format output of `{subscriber_count}` tag.
-- You can now use `<img>` in your form messages.
-- Add Mailchimp API error code to debug log lines.
-- Add plugin name + version to User-Agent header for all Mailchimp API requests.
-- Make sure value of MC_LANGUAGE field is limited to 2 characters.
-
-
-#### 3.1.11 - July 5, 2016
-
-**Improvements**
-
-- Update JavaScript dependencies for admin screens.
-- Test debug log & show notice when it's not writable.
-
-**Additions**
-
-- Add "placeholder" option for dropdown fields.
-
-
-#### 3.1.10 - June 21, 2016
-
-**Fixes**
-
-- Styles Builder in Premium not building because of incorrect flag in core plugin.
-
-**Improvements**
-
-- Don't show position option for WooCommerce integration when sign-up is implicit.
-- Improvements to form previewer logic.
-- Make sure admin notifications are always shown exactly one time.
-
-#### 3.1.9 - June 7, 2016
-
-**Fixes**
-
-- Placeholder polyfill wasn't loaded (only in IE8 and below).
-
-**Improvements**
-
-- Don't write to debug log if it is not writable.
-- Reset some CSS properties for commonly used class names in Form Editor & Debug Log.
-- Do not unnecessarily register styles which are then immediately enqueued.
-
-**Additions**
-
-- Add "is required field" option for dropdown & radio fields in Field Helper.
-- Link to [Boxzilla plugin](https://boxzillaplugin.com/) from admin sidebar.
-
-
-#### 3.1.8 - May 23, 2016
-
-**Fixes**
-
-- Form Preview mode replaced all titles on that page with "Form Preview".
-- API class fix for [eCommerce360 functionality](https://www.mc4wp.com/kb/what-is-ecommerce/).
-
-**Improvements**
-
-- Show dismissible notice when API key is not set.
-- Show empty API key errors ...
-
+
+
+#### 4.9.17 - Sep 17, 2024
+
+- Fix compatibility with WooCommerce versions 8.5 to 8.8 because of private method that was later made public.
+- Fix potential reflected XSS by stripping and escaping all HTML from `{email}` tag replacements. Thanks to kauenavarro for responsibly disclosing.
+- Fix potential stored XSS for attackers with both administrator access and Mailchimp account access by escaping HTML from interest group name. Thanks to Jorge Diaz (ddiax) for responsibly disclosing.
+
+
+#### 4.9.16 - Sep 11, 2024
+
+- Add support for WooCommerce Checkout Block in sign-up checkbox integration.
+
+
+#### 4.9.15 - Aug 13, 2024
+
+- Improved anti-spam measures on the [custom form integration](https://www.mc4wp.com/kb/subscribe-mailchimp-custom-html-form/). If you are using the custom form integration (using the `mc4wp-subscribe` checkbox), please test your forms after upgrading and report any issues to us.
+- Improved anti-spam measures on all sign-up forms.
+- Remove unsupported filter hook from Gravity Forms integration. 
+
+
+#### 4.9.14 - Jul 17, 2024
+
+- Very minor code-size improvements to public forms related JavaScript.
+- Update third-party JS dependencies.
+- Bump tested WordPress version to 6.6.
+
+
+#### 4.9.13 - Apr 25, 2024
+
+- Fix issue with Composer classmap throwing a fatal error when an older version of Composer is already loaded.
+
+
+#### 4.9.12 - Apr 22, 2024 
+
+- Fix last 10 Mailchimp lists not being pulled-in when having more than 10 lists.
+
+
+#### 4.9.11 - Jan 8, 2024
+
+- Update third-party JS dependencies.
+- Bump tested WordPress version.
+
+
+#### 4.9.10 - Nov 20, 2023
+
+- Integrations: Update CheckoutWC hook name for WooCommerce checkbox integration.
+- Forms: Don't show form preview to users without `edit_posts` capability.
+- Forms: Explicitly exclude form preview from search engine indexing.
+- General: Don't unnecessarily go through service contrainer while bootstrapping plugin.
+- General: Remove some unnecessary JavaScript now that browser support has caught up.
+
+
+#### 4.9.9 - Oct 3, 2023 
+
+- Fix class "MC4WP_Usage_Tracking" not found error for WP Cron / WP CLI processes.
+
+
+#### 4.9.8 - Oct 3, 2023
+
+- Remove the opt-in usage tracking functionality as we're not really using it for decision making anymore.
+- Add missing label element to the select element for setting the logging level.
+- Our JavaScript assets are now transpiled to support the same set of browsers as WordPress core. 
+This drops support for some very old browsers, but results in smaller bundle sizes for the supported set of browsers.
+- Update third-party JS dependencies to their latest versions.
+
+
+#### 4.9.7 - Aug 29, 2023
+
+- Update third-party JS dependencies.
+- Minor textual improvements.
+- Bump tested WordPress version.
+
+
+#### 4.9.6 - Jul 12, 2023
+
+- Update third-party JS dependencies.
+- Address some minor codestyle issues.
+
+
+#### 4.9.5 - Jun 7, 2023
+
+- Fix generated HTML for list/audience choice fields.
+- Fix deprecation warning in includes/admin/class-review-notice.php.
+- Update JavaScript dependencies.
+
+
+#### 4.9.4 - May 2, 2023
+
+- Fallback to default checkbox label if none given. Thanks to [Shojib Khan](https://github.com/kshojib).
+- Improve WooCommerce integration settings page by disabling position field if integration is disabled. Thanks to [Shojib Khan](https://github.com/kshojib).
+- Update JavaScript dependencies.
+
+
+#### 4.9.3 - Mar 31, 2023
+
+- Defend against breaking change in latest WPForms update.
+
+
+#### 4.9.2 - Mar 21, 2023
+
+- Add support for a field named `MARKETING_PERMISSIONS` to enable GDPR fields configured in Mailchimp. A [sample code snippet can be found here](https://github.com/ibericode/mailchimp-for-wordpress/blob/master/sample-code-snippets/forms/gdpr-marketing-permissions.md).
+- Remove Google reCaptcha feature. This was already disabled if you were not already using it.
+
+
+#### 4.9.1 - Feb 7, 2023
+
+- Fix generated value attribute for fields of type choice (dropdown, checkboxes, radio fields).
+- Fix type of `marketing_permissions` field in API requests. Thanks to [George Korakas](https://github.com/gkorakas-eli).
+- Refactor list overview JS to not depend on Mithril.js anymore.
+- Simplify admin footer text asking for a plugin review.
+- When renewing lists, renew cached marketing permissions too.
+
+
+#### 4.9.0 - Jan 13, 2023 
+
+- Removed deprecated filter hook `mc4wp_settings_cap`, use `mc4wp_admin_required_capability` instead.
+- Removed deprecated filter hook `mc4wp_merge_vars`, use `mc4wp_form_data` or `mc4wp_integration_data` instead.
+- Removed deprecated filter hook `mc4wp_form_merge_vars`, use `mc4wp_form_data` instead.
+- Removed deprecated filter hook `mc4wp_integration_merge_vars`, use `mc4wp_integration_data` instead.
+- Removed deprecated filter hook `mc4wp_valid_form_request`, use `mc4wp_form_errors` instead.
+- Removed deprecated function `mc4wp_get_api()` and deprecated class `MC4WP_API`.
+- Removed deprecated function `mc4wp_checkbox()`.
+- Removed deprecated function `mc4wp_form()`, use `mc4wp_show_form()` instead.
+- Added filter `mc4wp_debug_log_message` to modify or disable messages that are written to the debug log.
+- Fix color of invalid Mailchimp API key notice.
+- Sanitize IP address value from `$_SERVER['REMOTE_ADDR']` too.
+- Fetch GDPR marketing permissions via first subscriber on list and show them in lists overview table.
+
+
+#### 4.8.12 - Dec 06, 2022
+
+- Minor performance, memory usage & size optimizations for all JavaScript code bundled with this plugin.
+
+
+#### 4.8.11 - Nov 1, 2022
+
+- Improved default styling for the WooCommerce sign-up checkbox integration.
+- Add `<strong>` to allowed HTML elements for GDPR disclaimer text on settings pages.
+- Remove all references to obsolete placeholders.js polyfill.
+- Move the GiveWP sign-up checkbox closer to the email input field. Thanks [Matthew Lewis](https://github.com/Matthew-Lewis).
+
+
+#### 4.8.10 - Sep 14, 2022
+
+- Fix mc4wp_get_request_ip_address() to return an IP address that matches Mailchimp's validation format when X-Forwarded-For header contains a port component.
+
+
+#### 4.8.8 - Aug 25, 2022
+
+- Fix mc4wp_get_request_ip_address() to pass new Mailchimp validation format. This fixes the "This value is not a valid IP." error some users using a proxy may have been seeing.
+
+
+#### 4.8.7 - Mar 2, 2022
+
+- Fix PHP 8.1 deprecation warnings in `MC4WP_Container` class.
+- Fix name of action hook that fires before Mailchimp settings rows are displayed on the settings page. Thanks [LoonSongSoftware](https://github.com/LoonSongSoftware).
+- Improve WPML compatibility. Thanks [Sumit Singh](https://github.com/5um17).
+- Fix deprecated function for AMP integration.
+- Only allow unfiltered HTML if user has `unfiltered_html` capability. Please read the below.
+
+Despite extensive testing, we may have missed some more obscure HTML elements or attributes from our whitelist.
+If you notice that some of your form HTML is stripped after saving your form, please get in touch with our support team and provide the HTML you attempted to save.
+
+
+#### 4.8.6 - Jun 24, 2021
+
+- Add nonce field to button for dismissing notice asking for plugin review.
+- Add strings from config/ directory to POT file.
+- Add nonce check to AJAX endpoint for refreshing cached Mailchimp lists.
+- Add capability check to AJAX endpoint for retrieving list details.
+- Schedule event to refresh cached Mailchimp list upon plugin activation.
+
+Thanks to the team over at [pluginvulnerabilities.com](https://www.pluginvulnerabilities.com/) for bringing some of these changes to our attention.
+
+
+#### 4.8.5 - Jun 1, 2021
+
+Add nonce verification to all URL's using `_mc4wp_action` query parameter.
+This fixes a CSRF vulnerability where a malicious website could trick a logged-in admin user in performing unwanted actions.
+
+A special thanks to Erwan from [WPScan](https://wpscan.com/) for bringing this issue to our attention.
+
+
+#### 4.8.4 - May 7, 2021
+
+- Add `defer` attribute to JS file, so page parsing isn't blocked at all.
+- Rewrite plugin CSS to optimize for selector performance and get rid of some duplication.
+
+After installing this update, make sure to also update any add-on plugins like [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/) and [Mailchimp Top Bar](https://wordpress.org/plugins/mailchimp-top-bar/).
+
+
+#### 4.8.3 - Jan 21, 2021
+
+- Fix fatal error on older PHP versions when submitting form without any subscriber tags set in the form settings.
+- Minor performance improvement in bootstrap method of the plugin.
+
+
+#### 4.8.2 - Jan 20, 2021
+
+- Allow short-circuiting `mc4wp_subscriber_data` filter by returning `null` or `false`.
+- Use a subdirectory for the default debug log file location, so that it's easier to protect using htaccess.
+- Improved reliability for fetching lists from mailchimp when lists have high stats.member_count property.
+
+
+#### 4.8.1 - Aug 25, 2020
+
+- Fix notice by explicitly setting `permission_callback` on registered REST route.
+- Minor internal code improvements.
+
+#### 4.8 - Jul 9, 2020
+
+- Plugin now requires PHP 5.3 or higher.
+- Prefix overlay classname to prevent styling collissions with other plugins.
+- Form sign-ups can now add tags to both new and existing subscribers.
+- Update JavaScript dependencies.
+- Register script early to work with Gutenberg preview.
+
+
+#### 4.7.8 - Jun 04, 2020
+
+- Add `MC4WP_API_V3::add_template` method.
+- Minor code hardening to ensure a default form is always set.
+- Update JS dependencies to their latest versions.
+- Fix icon for Gutenberg block.
+
+
+#### 4.7.7 - Apr 28, 2020
+
+- Update JS dependencies to their latest versions.
+- API client `add_list_member` method now has an additional parameter to skip merge field validation.
+- Simplify code for updating an existing form.
+
+
+#### 4.7.6 - Apr 9, 2020
+
+- Update JS dependencies to their latest versions.
+- Check if className is of type string, fixes a console warning when clicking inside a SVG element.
+- Minor improvements to the AMP implementation to address harmless validation warnings.
+
+
+#### 4.7.5 - Feb 10, 2020
+
+- Add AMP compatibility to sign-up forms, thanks to Claudiu Lodromanean. This uses the [official AMP plugin for WordPress](https://amp-wp.org).
+- Add settings key to WPML config so settings can easily by copied over to translated versions of a form.
+- Optimize size & performance of JavaScript code, resulting in a file that is 40% smaller.
+- Update CodeMirror to its latest version.
+- Escape all string translations.
+
+
+#### 4.7.4 - Dec 7, 2019
+
+**Fixes**
+
+- htaccess config for servers running Apache 2.4 or later.
+
+
+#### 4.7.3 - Dec 4, 2019
+
+**Fixes**
+
+- Top Bar & User Sync add-on using API v2 since version 4.7.1.
+- Revert change in formatter for date fields, breaking all forms with date fields in them.
+
+**Improvements**
+
+- Add getter method for raw (unmodified) data on form class.
+
+
+#### 4.7.2 - Nov 27, 2019
+
+**Fixes**
+
+- Invalid .htaccess file in case there already is one in the uploads directory.
+
+
+#### 4.7.1 - Nov 26, 2019
+
+**Improvements**
+
+- Update MemberPress hook names. Thanks [Ian Heggaton](https://github.com/pixelated-au)!
+- Use WordPress.org translations instead of bundling translation files in plugin itself.
+- Write .htaccess to directory of debug log file, to prevent file access.
+- Add some convenient hooks for Checkout for WooCommerce.
+- Stop parsing shortcodes in text widgets as WordPress core does this since version 4.9.
+
+
+#### 4.7 - Nov 7, 2019
+
+**Improvements**
+
+- Add role=alert to form notices.
+- Add setting to pre-check sign-up checkbox for Gravity Forms integrations.
+- Add new position for WooCommerce integration: directly after the billing_email field.
+- Fix PHP notices for submitting a form and saving a form as an administrator.
+- Add link to [Koko Analytics plugin](https://wordpress.org/plugins/koko-analytics/).
+
+
+#### 4.6.2 - Oct 24, 2019
+
+**Fixes**
+
+- Address fields in forms would always be required (even if really optional).
+
+**Improvements**
+
+- Add proper SVG admin menu icon.
+- Minor overall performance and memory usage improvements.
+
+
+#### 4.6.1 - Oct 7, 2019
+
+**Fixes**
+
+- Fixed list cache usage for WPForms, Gravity Forms and Ninja Forms integrations.
+
+
+#### 4.6.0 - Oct 7, 2019
+
+**Improvements**
+
+- Improved fetch and cache mechanism for retrieving Mailchimp account details, fetching data only when it is required.
+- Updated [Mithril](https://mithril.js.org/) and [CodeMirror](https://codemirror.net/) dependencies.
+- Decreased size of `forms.js` from 22KB to 9KB.
+- No longer requiring jQuery anywhere.
+- Increase API HTTP request timeout to 15 seconds.
+
+Please note that installing this update requires you to also update any add-ons like [Mailchimp Top Bar](https://wordpress.org/plugins/mailchimp-top-bar/) and [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/) (if installed).
+
+
+#### 4.5.5 - Sep 12, 2019
+
+**Fixes**
+
+- Google reCAPTCHA script was still loading even if no forms have it enabled.
+
+
+#### 4.5.4 - Sep 11, 2019
+
+**Improvements**
+
+- Removed custom color from menu item for improved accessibility.
+- Take birthday field format into account when sending data to Mailchimp.
+- Print Google reCAPTCHA script in footer.
+
+**Changes**
+
+- Changed plugin name to MC4WP instead of Mailchimp for WordPress.
+
+
+#### 4.5.3 - July 23, 2019
+
+**Fixes**
+
+- Temporarily switch status of pending subscribers to "unsubscribe" versus deleting susbcriber before re-subscribing.
+- Deprecation notice for Gravity Forms version 2.4 and higher.
+
+**Improvements**
+
+- Filter out empty tags when applying tags to new subscribers.
+- Show all not installed integrations.
+- Show notice when form doesn't have a Mailchimp list selected to subscribe people to.
+- Check function existence for compatibility with WordPress 4.7
+- Don't submit form when Google reCAPTCHA is enabled but errors.
+- Update third-party JavaScript dependencies.
+
+
+#### 4.5.2 - May 8, 2019
+
+**Improvements**
+
+- Accept more truthy values in custom integration for improved compatibility with third-party forms.
+- Update JavaScript dependencies.
+- Load Google reCaptcha script in footer (if needed).
+
+
+#### 4.5.1 - April 8, 2019
+
+**Additions**
+
+- Add sign-up integration for [Give](https://wordpress.org/plugins/give/)
+- Add sign-up integration for [UltimateMember](https://wordpress.org/plugins/ultimate-member/)
+
+**Improvements**
+
+- Write to debug log if Google reCAPTCHA secret key is incorrect.
+- Validate reCAPTCHA keys when savings form settings.
+- Allow setting an empty "successfully subscribed" message.
+
+
+#### 4.5.0 - March 27, 2019
+
+**Additions**
+
+- Built-in integration with Google reCAPTCHA to prevent bots from subscribing to your Mailchimp lists.
+
+**Improvements**
+
+- Minor improvements to the JavaScript that is loaded on admin pages.
+
+
+#### 4.4.0 - March 1, 2019
+
+**Fixes**
+
+- AffiliateWP integration subscribing the wrong user if affiliate ID differs from user ID.
+
+**Improvements**
+
+- Renamed "MailChimp" to "Mailchimp" to match Mailchimp's new branding.
+- More accurate handling of timeouts for accounts with many MailChimp lists.
+- UX improvements for integrations overview page.
+- Validate MailChimp API key format when it's entered.
+- Improved compatibility with Klarna Checkout in the WooCommerce checkout integration.
+- Bumped required PHP version to 5.3 (soft requirement for now).
+
+**Additions**
+
+- Added Gutenberg block for easily adding a form to a post or page.
+- Added subscriber tags setting to forms.
+
+
+#### 4.3.3 - December 31, 2018
+
+**Fixes**
+
+- Update WPForms integration to properly detect if the WPForms plugin is activated.
+
+**Improvements**
+
+- Write API request parameters to the debug log in case of connection timeouts.
+- Update JavaScript dependencies.
+
+
+#### 4.3.2 - December 11, 2018
+
+**Fixes**
+
+- Use of `readonly` function, which is only available in WordPress 4.9 or later.
+
+
+#### 4.3.1 - November 28, 2018
+
+**Fixes**
+
+- Fatal error on PHP versions older than 5.5
+
+
+#### 4.3 - November 28, 2018
+
+**Additions**
+
+- Added `MC4WP_API_KEY` PHP constant which can be used to set your Mailchimp API key.
+- Add `mc4wp_mailchimp_list_limit` filter hook to modify the maximum number of Mailchimp lists to fetch. Defaults to 200.
+
+**Improvements**
+
+- Apply `mc4wp_integration_gravity-forms_options` filter hook on Gravity Forms integration options so the checkbox can be prechecked and the checkbox label text modified.
+- The `updated_subscriber` JS event is now fired forms not using AJAX as well (when applicable).
+
+
+#### 4.2.5 - Sep 11, 2018
+
+**Improvements**
+
+- Only re-add subscriber to list if we want to re-trigger a double opt-in confirmation email.
+- Change Gravity Forms field name to "Mailchimp for WordPress"
+- Get rid of cached result of Mailchimp API connection.
+
+
+#### 4.2.4 - July 9, 2018
+
+**Improvements**
+
+- Ensure type-safety on some global variables.
+- Stop showing trashed forms immediately.
+- Pre-check Mailchimp list when creating a new form if there is only 1 list.
+- Send `null` for unknown values in usage tracking data (only when opted-in).
+
+**Additions**
+
+- Add methods for accessing Mailchimp's e-commerce promo code endpoints to API class.
+
+
+#### 4.2.3 - June 11, 2018
+
+**Fixes**
+
+- Don't wrap "agree to terms" input in hyperlink element.
+- Allow [ENTER] key again after field helper overlay is closed.
+
+**Improvements**
+
+- Fallback to meta-refresh if redirect fails because of "headers already sent" error.
+
+
+
+#### 4.2.2 - May 22, 2018
+
+**Fixes**
+
+- Events Manager integration was not working with logged-in users.
+- Form preview URL should respect admin HTTP(S) scheme.
+- Removed use of PHP 5.4 function.
+
+**Improvements**
+
+- Add "agree to terms" checkbox to field helper.
+
+**Additions**
+
+- Add filter `mc4wp_http_request_args`.
+
+
+#### 4.2.1 - April 11, 2018
+
+**Fixes**
+
+- Namespace usage warning when running PHP 5.2
+
+**Improvements**
+
+- Remove obsolete `type` attribute from all `<script>` tags printed by the plugin.
+- Improved tooltips on settings pages.
+- Do not pre-check integration checkboxes by default.
+- Add textual warnings to settings that may affect [GDPR compliance](https://www.mc4wp.com/kb/gdpr-compliance/).
+- Update translation files.
+
+#### 4.2 - March 5, 2018
+
+**Additions**
+
+- Live form preview while editing form.
+
+**Improvements**
+
+- Improved [conditional fields logic](https://www.mc4wp.com/kb/conditional-fields-elements/).
+- Debug log now includes request & response data.
+- [Form JavaScript events](https://www.mc4wp.com/kb/javascript-form-events/) are fired in an isolated thread now, to prevent errors in event callbacks from breaking form functionality.
+- Don't send empty field values to Mailchimp when updating subscribers.
+- Show interest grouping ID in list overview on settings page.
+
+**Fixes**
+
+- Ninja Forms export checkbox would always state "checked" when form contained a Mailchimp sign-up checkbox.
+
+
+
+#### 4.1.15 - February 7, 2018
+
+**Fixes**
+
+- Dropdown fields with special characters were not properly passed to Mailchimp.
+- Interest groups with an all-numeric ID were not properly passed to Mailchimp.
+
+**Improvements**
+
+- Various minor code optimizations
+- Do not redirect when showing "already subscribed" warning.
+- Improved scroll to form handling after a form is submitted without AJAX.
+
+
+#### 4.1.14 - January 8, 2018
+
+**Fixes**
+
+- Validate method was incorrectly checking required array fields.
+
+**Improvements**
+
+- Wrap some missing strings in translate calls. Thanks [morlor](https://github.com/morloi).
+- Make it clear that redirecting after successful form submissions will not show the "subscribed" message.
+
+
+
+#### 4.1.13 - December 28, 2017
+
+**Fixes**
+
+- Array to string conversion in default form messages.
+
+**Additions**
+
+- Allow marking Gravity Forms sign-up checkbox as a required field.
+
+
+#### 4.1.12 - December 11, 2017
+
+**Fixes**
+
+- Ninja Forms double opt-in setting was incorrectly inversed.
+
+**Improvements**
+
+- Simplified form processing & notice logic.
+- Prevent 404 errors by proactively replacing lowercased `name="name"` input attributes.
+- Updated JavaScript dependencies.
+
+**Additions**
+
+- Integration for AffiliateWP.
+
+
+#### 4.1.11 - November 2, 2017
+
+**Fixes**
+
+- Filter out empty array values when overriding selected Mailchimp lists via `_mc4wp_lists`.
+
+**Improvements**
+
+- Updated JavaScript dependencies.
+
+**Additions**
+
+- Link to the [HTML Forms](https://www.htmlforms.io/) from the plugin settings pages.
+
+
+#### 4.1.10 - October 19, 2017
+
+**Improvements**
+
+- Remove unused options from Ninja Forms integration.
+- Now logging all sign-ups from Ninja Forms integrations when using [Mailchimp for WordPress Premium](https://www.mc4wp.com/premium-features/).
+
+**Additions**
+
+- Added Gravity Forms integration. You can now integrate with Gravity Forms by adding the "Mailchimp" field to your forms.
+
+
+#### 4.1.9 - September 19, 2017
+
+**Improvements**
+
+- Add `<label>` element to sign-up checkbox for WCAG compatibility.
+- Custom integration now works with Enfold theme's contact form element.
+
+
+#### 4.1.7 & 4.1.8 - September 8, 2017
+
+**Fixes**
+
+- Properly escape the return value of `add_query_arg` when it is used in HTML attributes to prevent cross-site scripting. Thanks to [Karim Ouerghemmi of RIPS](https://www.ripstech.com/) for responsibly disclosing.
+- Now loading integrations after WPML so that String Translations work properly.
+
+**Additions**
+
+- Add sign-up integration for WPForms forms.
+
+**Improvements**
+
+- Updated internal JS dependencies.
+- Form tag `{data key="foo.bar"}` now allows you to access nested array values.
+
+
+#### 4.1.6 - July 31, 2017
+
+**Fixes**
+
+- Method on API class for retrieving campaign data.
+
+**Improvements**
+
+- Show Akamai reference number when an API request is blocked by Mailchimp's firewall.
+- Minor output buffering improvements in form previewer.
+
+
+#### 4.1.5 - June 27, 2017
+
+**Fixes**
+
+- Failsafe against outputting sign-up checkbox twice in registration forms.
+- Properly close HTML anchor element in French translation files.
+- Fix BuddyPress sign-ups when using WordPress Multisite.
+
+**Improvements**
+
+- Fire action hook `mc4wp_form_updated_subscriber` whenever a form was used to update a subscriber in Mailchimp.
+- Increase browser timeout for AJAX request when fetching Mailchimp lists.
+
+**Additions**
+
+- Added campaign & template methods to API client class.
+
+
+
+#### 4.1.4 - June 15, 2017
+
+**Fixes**
+
+- Some form specific JS events were not firing due to incorrect event names.
+- Registration form integration now works with WooCommerce registration form.
+- Notice that asks for a plugin review would re-appear after dismissing it.
+
+
+#### 4.1.3 - May 24, 2017
+
+**Improvements**
+
+- Randomise time of cron event that renews Mailchimp lists.
+- Always try to show Mailchimp list info when API key is given.
+
+
+#### 4.1.2 - May 8, 2017
+
+**Fixes**
+
+- Use earlier hook priority for Ninja Forms 3 integration so action is registered on time.
+
+**Improvements**
+
+- Improved Mailchimp list fetching & memory usage for accounts with many lists.
+- Show error message when fetching lists fails.
+- Updated plugin translations.
+
+#### 4.1.1 - April 11, 2017
+
+**Fixes**
+
+- WPML String Translation not working with the checkbox label for sign-up integrations.
+
+**Improvements**
+
+- Use updated order methods when using WooCommerce 3.0, thanks to Liam McArthur.
+- Updated JavaScript dependencies.
+
+
+#### 4.1.0 - March 14, 2017
+
+**Improvements**
+
+- Updated all JavaScript dependencies in the plugin.
+- Failsafed filter hooks to prevent invalid variable types.
+- Explain that greyed out integrations means that specific plugin is not activated.
+- Conditional form elements now uses event delegation, so it works with forms in [Boxzilla pop-ups](https://boxzillaplugin.com/).
+- Updated language files.
+
+**Additions**
+
+- Added support for Ninja Forms 3.
+- Added `mc4wp_integration_show_checkbox` filter.
+
+
+#### 4.0.13 - February 8, 2017
+
+**Improvements**
+
+- Ensure fields are HTML decoded before sending to Mailchimp.
+- Better OptimizePress compatibility.
+- Show all address-type fields as required when form contains 1 or more fields of the same address group.
+
+
+#### 4.0.12 - January 16, 2017
+
+**Fixes**
+
+- Don't call `stripslashes` on POST data twice.
+
+**Improvements**
+
+- Plugin review notice is now dismissible over AJAX.
+- Improved formatting of birthday fields.
+- Updated Polish translations, thanks to Mateusz Lomber.
+- Updated German translations, thanks to Sven de Vries.
+
+**Additions**
+
+- Add `update_ecommerce_store_product` method to API class.
+- Throw form specific JavaScript events, like `15.subscribed` to hook into "subscribed" events for form with ID 15.
+
+
+#### 4.0.11 - December 9, 2016
+
+**Fixes**
+
+- Unescaped request variable on integration settings page, allowing for authenticated XSS. Thanks to [dxwsecurity](https://security.dxw.com/) for responsibly disclosing.
+
+**Improvements**
+
+- Add `$args` parameter to `API::get_lists_activity` method. Relates to the [Mailchimp Activity](https://wordpress.org/plugins/mc4wp-activity/) plugin.
+
+
+#### 4.0.10 - December 6, 2016
+
+**Improvements**
+
+- You can now enable or disable debug logging from the "Other" settings page.
+- No longer using deprecated function in Contact Form 7, thanks to [stodorovic](https://github.com/stodorovic).
+- Improved UI for adding hidden interest groupings fields to a form.
+
+
+#### 4.0.9 - November 23, 2016
+
+**Fixes**
+
+- Issue with escaped HTML when using form tags introduced by previous update.
+
+
+#### 4.0.8 - November 23, 2016
+
+**Improvements**
+
+- Improved handling of large debug logs.
+- Improved error messages when writing exceptions to debug log.
+- Show notice when form is missing required Mailchimp fields.
+- Custom form integration now handles arrays with 1-level depth. Thanks to [Mardari Igor](https://github.com/GarryOne).
+- You can now use nested tags in your form code, eg `{data key="utm_source" default="{current_path}"}`
+
+**Additions**
+
+- Add `data-hide-if` attribute logic to forms. See [conditionally hide form fields](https://www.mc4wp.com/kb/conditional-fields-elements/). Thanks to [Kurt Zenisek](http://kurtzenisek.com/).
+- Add hooks for delayed BuddyPress sign-up. Thanks to [Christian Wach](https://profiles.wordpress.org/needle).
+
+
+#### 4.0.7 - October 25, 2016
+
+**Improvements**
+
+- Obfuscate all email addresses in debug log. Thanks [Sauli Lepola](https://twitter.com/SJLfi).
+- Ask for confirmation before disabling double opt-in, which we do not recommend.
+- Allow vertical resizing of debug log.
+- Failsafe against including JavaScript file twice.
+- No longer wrapping CF7 checkbox in paragraph tags.
+
+**Additions**
+
+- Added `mc4wp_form_api_error` action hook for API errors encountered by forms.
+- Added `element_class` argument to `[mc4wp_form]` shortcode for adding CSS classes.
+
+
+#### 4.0.6 - October 10, 2016
+
+**Fixes**
+
+- Issue with lists not showing when using W3 Total Cache with APCu object cache enabled.
+
+**Improvements**
+
+- We're no longer stripping newlines from text fields.
+
+**Additions**
+
+- Added missing e-commerce related API methods to API class.
+
+
+#### 4.0.5 - September 29, 2016
+
+**Fixes**
+
+- Allow checkbox option for the List Choice field (again).
+
+**Improvements**
+
+- Fetch Mailchimp lists over AJAX, to speed up perceived performance (especially when your account has many lists).
+- Periodically fetch Mailchimp lists, so cache is always fresh.
+- Improved `<label>` element accessibility for checkbox integrations.
+- Stop using double underscore prefix in function names, as these are reserved in PHP 7.
+- `{post}` and `{user}` shortcodes now accept a `default` parameter.
+
+**Additions**
+
+- Add [MemberPress](https://www.memberpress.com/) integration.
+- Add missing e-commerce related API methods for next week's [WooCommerce Mailchimp e-commerce integration](https://www.mc4wp.com/kb/what-is-ecommerce/) release.
+
+
+#### 4.0.4 - September 7, 2016
+
+**Improvements**
+
+- Allow re-running previous migrations by visiting a certain admin URL.
+- Do not show checkboxes option for fields that only accept a single value.
+- Write field specific errors to debug log when Mailchimp denies a sign-up request.
+- Write to debug log when custom integrations can not find an EMAIL field.
+- Differentiate between connection & authorization errors when testing connection to Mailchimp.
+- Bump limit of number of Mailchimp lists to fetch from 100 to 500.
+
+
+#### 4.0.3 - August 24, 2016
+
+**Fixes**
+
+- Ninja Forms integration not working when using PayPal integration.
+
+**Improvements**
+
+- Show connection errors on Mailchimp settings page.
+
+**Additions**
+
+- Add pre-checked option to Ninja Forms integration.
+- You can now [conditionally hide fields or elements](https://www.mc4wp.com/kb/conditional-fields-elements/) using the `data-show-if` attribute.
+
+
+#### 4.0.2 - August 10, 2016
+
+**Fixes**
+
+- Hidden fields which referenced interest groups by name were not sent to Mailchimp.
+- Adding hidden field to form would reset value on every change.
+
+**Improvements**
+
+- Decrease file size of JavaScript for forms by about 30%.
+
+
+#### 4.0 & 4.0.1 - August 9, 2016
+
+This release updates the plugin to version 3 of the Mailchimp API. Please [read through the upgrade guide](https://www.mc4wp.com/kb/upgrading-to-4-0/) before updating to make sure things keep working as expected for you.
+
+**Changes**
+
+- "Send welcome email" is now handled from your list settings in Mailchimp.
+- Filter `mc4wp_form_merge_vars` is now called `mc4wp_form_data`.
+- Filter `mc4wp_integration_merge_vars` is now called `mc4wp_integration_data`.
+- New format for GROUPING fields in forms & filter hooks.
+- Value delimiter in hidden fields is now a pipe `|` character.
+
+**Additions**
+
+- New filter: `mc4wp_form_subscriber_data`.
+- New filter: `mc4wp_integration_subscriber_data`.
+- New form tag: `{cookie name="mycookie"}`
+
+**Improvements**
+
+- The plugin now communicates with the latest & greatest Mailchimp API.
+- Previously unsubscribed subscribers can now be re-added without errors.
+- Add `User-Agent` header to all API requests.
+- Available fields in form editor are now split-up by category.
+- Birthday fields now accept a broader range of values and delimiters.
+
+**Fixes**
+
+- Issue with only 10 Mailchimp lists / fields / interests being returned.
+- Incorrect form message showing when double opt-in is disabled.
+- Error in upgrade routine when API request fails.
+- List fields not fetched when list has just 1 non-default merge field.
+
+
+#### 3.1.12 - July 28, 2016
+
+**Improvements**
+
+- Smarter scrolling after submitting form & reloading page.
+- Format output of `{subscriber_count}` tag.
+- You can now use `<img>` in your form messages.
+- Add Mailchimp API error code to debug log lines.
+- Add plugin name + version to User-Agent header for all Mailchimp API requests.
+- Make sure value of MC_LANGUAGE field is limited to 2 characters.
+
+
+#### 3.1.11 - July 5, 2016
+
+**Improvements**
+
+- Update JavaScript dependencies for admin screens.
+- Test debug log & show notice when it's not writable.
+
+**Additions**
+
+- Add "placeholder" option for dropdown fields.
+
+
+#### 3.1.10 - June 21, 2016
+
+**Fixes**
+
+- Styles Builder in Premium not building because of incorrect flag in core plugin.
+
+**Improvements**
+
+- Don't show position option for WooCommerce integration when sign-up is implicit.
+- Improvements to form previewer logic.
+- Make sure admin notifications are always shown exactly one time.
+
+#### 3.1.9 - June 7, 2016
+
+**Fixes**
+
+- Placeholder polyfill wasn't loaded (only in IE8 and below).
+
+**Improvements**
+
+- Don't write to debug log if it is not writable.
+- Reset some CSS properties for commonly used class names in Form Editor & Debug Log.
+- Do not unnecessarily register styles which are then immediately enqueued.
+
+**Additions**
+
+- Add "is required field" option for dropdown & radio fields in Field Helper.
+- Link to [Boxzilla plugin](https://boxzillaplugin.com/) from admin sidebar.
+
+
+#### 3.1.8 - May 23, 2016
+
+**Fixes**
+
+- Form Preview mode replaced all titles on that page with "Form Preview".
+- API class fix for [eCommerce360 functionality](https://www.mc4wp.com/kb/what-is-ecommerce/).
+
+**Improvements**
+
+- Show dismissible notice when API key is not set.
+- Show empty API key errors ...
+
 == Upgrade Notice ==
 
 = 3.0.3 =