ECU Remapping Performance Calculator

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4.22.0

• Refreshed the Free plugin admin with the modern General, Vehicles, Search and Results interface.
• Replaced legacy vehicle multi-select controls with vehicle cards and searchable manufacturer selection.
• Brought across current calculator preview and cascading vehicle lookup stability fixes.
• Improved handling of unavailable or delayed vehicle data so the interface fails gracefully.
• Removed the unnecessary Licence tab from the Free edition and added a clean optional Pro upgrade panel.
• Free remains limited to its intended core feature set, including Stage 1 results.

4.17.0

• First dedicated WordPress.org Free edition build.
• Includes vehicle lookup, Stage 1 estimated gains, basic results, shortcode, Gutenberg block and core styling.
• Pro-only lead capture, pricing, Stage 2-4 controls, conversion CTAs, analytics and email-management code are not included in this package.
• Free remains fully functional and does not expire or require a licence.

4.16.0

• Added the Free/Pro product architecture foundation without removing or gating existing functionality.
• Added one central edition and feature registry for future Free and Pro builds.
• Defined the intended WordPress.org core feature set and the separate commercial feature set in code.
• Added a build note requiring future WordPress.org packages to physically exclude Pro-only modules rather than merely hiding them.
• Current 4.16 package remains the full Pro-foundation build; licence/trial enforcement is intentionally deferred.

4.16.0

• Release-candidate quality pass focused on reliability, accessibility and WordPress compatibility.
• Hardened plugin file loading by using absolute plugin paths.
• Fixed output-buffer cleanup when the calculator is disabled.
• Fixed the manufacturer label association and invalid results-table markup.
• Added defensive defaults for calculator options to avoid notices on incomplete or migrated settings.
• Corrected the historical 4.12.0 changelog heading.
• Improved the plugin header description while preserving existing functionality and data.

4.14.0

• Added configurable post-result CTA routes for Quote, WhatsApp, Phone and Email.
• Added editable CTA heading, supporting copy, button labels and optional result disclaimer.
• Added a compact CTA preview to Quote Enquiries settings.
• Added aggregate CTA analytics for quote opens/submissions, WhatsApp, phone, email and Copy Results interactions.
• CTA analytics do not store visitor identifiers and clearly distinguish clicks from completed calls/conversations.
• Centralised the dashboard version display on the plugin version constant.
• Preserved selected-stage context throughout quote, WhatsApp and result-sharing actions.

4.13.0

• Added enquiry source-page attribution so businesses can see which calculator page generated each lead.
• Added source-page details to lead notifications and individual lead records.
• Added compact business-email delivery status to the Remapping Leads list.
• Added source-page information to WordPress personal-data exports.
• Corrected the dashboard version badge so it follows the current release.

4.12.0

• Added delivery-status tracking for administrator lead notifications and optional customer confirmation emails.
• Lead records now show whether each email was sent, failed, disabled, or predates delivery tracking.
• Added secure one-click resend actions from the individual lead screen for failed/missed notifications.
• Resending never creates a duplicate lead and preserves the existing enquiry workflow/status.
• Refactored enquiry email generation into reusable helpers so original sends and resends use the same content and validation.
• Preserved all existing calculator, pricing, WhatsApp, analytics, privacy and Gutenberg functionality.

4.11.0

• Added optional customer confirmation emails after a successful quote enquiry.
• Added configurable confirmation subject/message with safe customer and vehicle placeholders.
• Added optional privacy acknowledgement checkbox for the frontend quote form, disabled by default.
• Automatically links the acknowledgement to the WordPress Privacy Policy page when configured.
• Added server-side validation so required privacy acknowledgement cannot be bypassed in the browser.
• Preserved all existing calculator, lead, pricing, WhatsApp, analytics and privacy functionality.

4.10.0

• Completed a pre-5.0 security, reliability and WordPress.org compliance audit.
• Removed the third-party Chart.js CDN dependency and replaced it with a self-contained native canvas comparison chart.
• Fixed conflicting admin nonces on the Quote Enquiries screen so saving settings and sending test emails remain independent.
• Added administrator capability enforcement to the destructive settings-reset AJAX action.
• Stopped returning API keys in legacy admin AJAX responses.
• Added validation, sanitisation and size/depth limits for public calculator payloads before remote requests and caching.
• Added lightweight anonymous request throttling to reduce abuse of the public data endpoints.
• Replaced permanent stale API cache options with expiring transients, while migrating legacy stale entries when encountered.
• Added a strict whitelist for calculator API routes and stronger validation of JSON settings before saving.

4.9.0

• Added a built-in test notification tool for quote enquiry emails.
• Test emails can use the notification address currently entered on the settings screen before it is saved.
• Added clearer feedback when WordPress accepts or rejects a test email.
• Clarified that successful wp_mail handoff does not guarantee inbox delivery and may still require SMTP configuration.
• Test notifications do not create customer leads or alter analytics.

4.8.0

• Hardened plugin lifecycle handling so scheduled lead maintenance is created on activation and cleared on deactivation.
• Added a stored plugin-version marker to support safer future upgrade routines.
• Reduced front-end overhead by moving the maintenance schedule recovery check from every request to WordPress admin only.
• Preserved all settings, leads, analytics and credentials when the plugin is deactivated.
• Corrected the previous changelog numbering so the dependency/performance release is listed as 4.5.0.
• Updated dashboard and support-report version reporting for 4.8.0.

4.7.0

• Added a Tools & System Status screen for easier troubleshooting and support.
• Added a safe vehicle-data cache clear tool that preserves settings, leads and analytics.
• Added a privacy-conscious support report with WordPress/PHP/plugin status and no credentials or customer data.
• Added visibility of data-service status, cached entries, lead retention and scheduled cleanup.

4.6.0

• Added a Quick Start panel to the ECU Remapping dashboard with clear setup steps for data connection, calculator embedding and quote capture.
• Improved dashboard onboarding so new installations can see what remains to be configured at a glance.
• Simplified admin terminology, including clearer Calculator Settings and Licence & Data Service labels.
• Removed the legacy yellow settings-panel presentation and improved settings readability without changing saved options.
• Added responsive admin styling for the new onboarding panel.
• Preserved all existing calculator, pricing, lead, WhatsApp, analytics, privacy, block and shortcode functionality.

4.5.0

• Removed the Font Awesome CDN dependency and replaced vehicle-type icons with lightweight self-contained icons.
• Pinned Chart.js to a known 4.5.1 release instead of loading an unversioned latest build.
• Added file-based cache busting for the calculator CSS and JavaScript so updates are served reliably after upgrades.
• Updated Gutenberg block asset metadata and the dashboard version badge.
• Reduced unnecessary third-party frontend requests while preserving the existing calculator experience.

4.4.0

• Reworked the estimated chart into a Standard-vs-selected-Stage comparison instead of simulated dyno/RPM curves.
• Chart follows the selected Stage and configured power/torque units.
• Added Standard-vs-tuned comparison bars to the performance panel.
• Added accessible live announcements when stages change.
• Improved keyboard focus, reduced-motion support and mobile result layouts.

4.3.0

• Added configurable frontend power units: BHP, HP or kW.
• Added configurable torque units: Nm or lb-ft.
• Added editable Power, Torque, Original, Increase, Get Results and Copy Results labels.
• Applied selected units consistently to interactive stage results, performance highlights, quote context and copied results.
• Kept source remapping data unchanged; unit conversion is presentation-only.
• Improved calculator localisation/flexibility without changing existing API data.

4.2.0

• Added configurable lead retention: Never, 30, 90, 180 or 365 days.
• Added automatic daily cleanup for expired quote enquiries when retention is enabled.
• Integrated quote enquiries with WordPress personal-data export and erasure tools.
• Added suggested privacy-policy text for stored remapping enquiries.
• Redesigned the individual lead screen with clearer vehicle/performance information.
• Added one-click Email, Call and WhatsApp customer actions from the lead screen.
• Improved responsive admin presentation for enquiry details.

4.1.0

• Added interactive Stage 1–4 selection on results.
• Added optional business-defined stage pricing, disabled by default.
• Added clearer selected power and torque comparison.
• Added Copy Results sharing.
• Strengthened quote/WhatsApp context with the selected tuning stage.
• Clarified that the performance graph is an estimated comparison, not a measured dyno run.
• Improved mobile and keyboard accessibility for the new result controls.

4.0.0

• Polished the plugin into a cohesive ECU remapping sales and lead-generation release.
• Added a Version 4 dashboard welcome panel with direct access to calculator and enquiry settings.
• Added at-a-glance system status for the remote data service, lead capture, WhatsApp and embed availability.
• Renamed the WordPress admin menu to ECU Remapping and added a performance-focused menu icon.
• Updated Gutenberg block metadata and frontend asset versions for the 4.0 release.
• Retains existing calculator settings, leads, analytics, shortcode and API configuration when upgrading from 3.x.

3.9.0

• Improved API resilience with successful-response caching and stale-cache fallback during temporary outages.
• Settings remain accessible when the remote API cannot be reached.
• Added short connection-status caching to avoid repeated remote checks while using the admin area.
• Restricted ERPC admin assets to ERPC screens instead of loading them across the WordPress frontend/admin.
• Frontend Chart.js and Font Awesome assets now load only on pages containing the calculator.
• Added explicit remote request timeouts and response validation for calculator data calls.

3.8.0

• Added a native Gutenberg ECU Remapping Calculator block.
• Retained the existing shortcode for Divi, Elementor and other page builders.
• Updated the shortcode renderer to return markup correctly for improved WordPress compatibility.
• Added block-aware front-end asset loading so calculator CSS and JavaScript load when the native block is used.
• Prevented duplicate native calculator blocks in the same editor because the current calculator interface uses unique DOM IDs.

3.7.0

• Added a remapping business dashboard with calculation, enquiry, quote and booking metrics.
• Added conversion-rate reporting and recent-lead overview.
• Added privacy-friendly aggregate tracking of successful calculator searches and popular vehicle selections.

3.6.0

• Added optional WhatsApp enquiries with vehicle and tuning details pre-filled.
• Added lead workflow statuses: New, Contacted, Quoted, Booked, Completed and Lost.
• Added internal lead notes, registration column and status filtering in WordPress admin.
• Improved lead contact links and visual status indicators.

3.5.0

• Added optional quote/enquiry capture beneath calculator results.
• Vehicle and performance details are included automatically with enquiries.
• Added WordPress lead storage and email notifications.
• Added Quote Enquiries settings and Remapping Leads admin screens.
• Added spam honeypot, nonce validation and basic submission rate limiting.

3.4.0

• Added visual power and torque gain summary cards to preset results.
• Added calculated percentage gains for the highest available tuning stage.
• Added a prominent highest-available-stage summary.
• Improved performance table typography, hover feedback and unavailable-stage presentation.
• Added responsive styling for the new performance highlights.
• Preserved the existing vehicle API and result data flow.

3.3.0

• Modernised the preset vehicle selector with a clearer step-based layout.
• Redesigned results presentation for improved readability on desktop and mobile.
• Improved responsive behaviour, focus states and keyboard accessibility for vehicle-type controls.
• Added clearer vehicle summary and recommendation cards.
• Preserved existing calculator IDs and data flow for backwards compatibility.

3.2.1

• Prepared plugin metadata and readme for WordPress.org distribution.
• Reworked the readme structure and shortened the plugin summary.
• Improved AJAX nonce handling with WordPress unslashing and sanitisation.
• Added an administrator capability check to the legacy API settings save endpoint.
• Replaced legacy stripslashes() handling in key AJAX requests with wp_unslash().
• No intentional changes to existing calculator behaviour or stored settings.

3.2

• Improved error handling.
• Added preset options and additional styling options.
• Added fallback API service capability.
• Added responsive changes and brand assets.
• Updated file structure.

3.1

• Removed testing data.

3.0

• Updated API calls and cleaned up the interface.

2.2

• Compatibility update for WordPress 6.8.

2.0

• Updated dashboard, API, settings configuration and styling options.

1.0

• Initial release.