# WHMCS Documentation > Documentation of WHMCS. This index covers version-agnostic content (About WHMCS, Mobile App, Releases, Installation Guide) plus links to the full llms.txt for every published WHMCS version. Base URL: https://docs.whmcs.com/ Generated: 2026-08-07 --- ## Versions The current General Availability release is WHMCS 9.0. For version-specific documentation not covered below (troubleshooting, system, payments, domains, clients, customization, servers, billing-and-invoicing, addon-modules, support, marketconnect, admins, products, orders), see the llms.txt for the relevant version: - [WHMCS 9.0 (General Availability)](https://docs.whmcs.com/9-0/llms.txt) - [WHMCS 8.13 (Long-Term Support)](https://docs.whmcs.com/8-13/llms.txt) - [WHMCS 8.12 (End of Life)](https://docs.whmcs.com/8-12/llms.txt) - [WHMCS 8.11 (End of Life)](https://docs.whmcs.com/8-11/llms.txt) - [WHMCS 8.10 (End of Life)](https://docs.whmcs.com/8-10/llms.txt) - [WHMCS 8.0-8.9 (End of Life)](https://docs.whmcs.com/8-0-9/llms.txt) --- ## Version-Agnostic Content ## [8.10 Release Highlights](https://docs.whmcs.com/releases/8-10/8-10-release-highlights/) Highlights WHMCS 8.10's automated Sitejet Builder provisioning for cPanel & WHM and Plesk servers and the new automatic cancellation setting for invoices overdue a configurable number of days. ## [8.11 Release Highlights](https://docs.whmcs.com/releases/8-11/8-11-release-highlights/) Highlights WHMCS 8.11's PHP 8.2 support, the Prevent Client Closure option for support tickets, new reCAPTCHA v3 and hCaptcha options, and migration from legacy PayPal modules to PayPal Payments. ## [8.12 Release Highlights](https://docs.whmcs.com/releases/8-12/8-12-release-highlights/) Highlights WHMCS 8.12's support ticket pinning and Scheduled Actions tab, admin invitation links, Mixpanel analytics tracking, and improved MarketConnect SSL certificate promotions. ## [8.13 Release Highlights](https://docs.whmcs.com/releases/8-13/8-13-release-highlights/) Highlights WHMCS 8.13's PHP 8.3 support, SocialBee social media management in MarketConnect, scheduled replies/notes/custom-field updates for tickets, and the new Getting Started Wizard experience. ## [8.6 Release Highlights](https://docs.whmcs.com/releases/8-6/8-6-release-highlights/) Highlights WHMCS 8.6's PHP 8.1 support, the payment gateway activation workflow moved to Apps & Integrations, and OAuth2 configuration options for Microsoft email services ahead of Microsoft's authentication deadline. ## [8.7 Release Highlights](https://docs.whmcs.com/releases/8-7/8-7-release-highlights/) Highlights WHMCS 8.7's CentralNic Reseller domain registrar module, 360 Monitoring and NordVPN in MarketConnect, Instant Issuance for SSL certificates, and warnings ahead of legacy Smarty tag removal. ## [8.8 Release Highlights](https://docs.whmcs.com/releases/8-8/8-8-release-highlights/) Highlights WHMCS 8.8's WP Squared account provisioning, on-demand service renewals from the Client Area, one-click Stripe Link payments, and encrypted MySQL connection settings in configuration.php. ## [8.9 Release Highlights](https://docs.whmcs.com/releases/8-9/8-9-release-highlights/) Highlights WHMCS 8.9's PayPal Payments and PayPal Card Payments gateway modules, on-demand renewals extended to product addons, and separated View Invoice and Manage Invoice admin permissions. ## [9.0 Release Highlights](https://docs.whmcs.com/releases/9-0/9-0-release-highlights/) Highlights WHMCS 9.0's Nexus cart experience, AI-powered Namespinning, CSV import support for ImportAssist, credit and debit notes with invoice immutability, and the Stripe Dynamic Payments gateway module. ## [Updating Through EOL Versions](https://docs.whmcs.com/releases/updating-through-eol-versions/) Maps WHMCS 6.3 through 8.12 to their required PHP and ionCube Loader versions, lists required and recommended PHP extensions and MySQL version ranges, and describes the Automatic Updater, command-line, and browser update methods. ## [8.0 Release Notes](https://docs.whmcs.com/releases/8-0/8-0-release-notes/) Lists WHMCS 8.0's version history and EOL date, upgrade requirements, the new Users and Client Accounts login system, Admin Area Blend theme, mail deliverability providers, OAuth2 for SMTP, and deprecated v4 theme and AutoAuth. ## [8.1 Release Notes](https://docs.whmcs.com/releases/8-1/8-1-release-notes/) Lists WHMCS 8.1's version history and EOL date, upgrade requirements, the new Twenty-One Client Area theme and templating system, OAuth2 email importing, automated user deletion, and removed AutoAuth and Realtime Register modules. ## [8.10 Release Notes](https://docs.whmcs.com/releases/8-10/8-10-release-notes/) Lists WHMCS 8.10's version history and EOL date, upgrade requirements, Sitejet Builder automation, automatic overdue invoice cancellation settings, updated invoice amount and total due labels, and a CloudFlare proxy health check. ## [8.11 Release Notes](https://docs.whmcs.com/releases/8-11/8-11-release-notes/) Lists WHMCS 8.11's version history and EOL date, upgrade requirements, PHP 8.2 support, Prevent Client Closure for tickets, reCAPTCHA v3/hCaptcha options, a new Cancel Invoice permission, and deprecated PayPal Basic and PayPal Checkout modules. ## [8.12 Release Notes](https://docs.whmcs.com/releases/8-12/8-12-release-notes/) Lists WHMCS 8.12's version history and EOL date, upgrade requirements, ticket pinning and Scheduled Actions, admin invite links, Mixpanel analytics tracking consent settings, an OPcache health check, and removal of the Modulo Moip gateway. ## [8.13 Release Notes](https://docs.whmcs.com/releases/8-13/8-13-release-notes/) Lists WHMCS 8.13's version history, upgrade requirements, PHP 8.3 support, SocialBee in MarketConnect, manual user password resets, the Getting Started Wizard, TROY card support, UK VAT validation, and removed AsiaPay and Gate2Shop gateways. ## [8.2 Release Notes](https://docs.whmcs.com/releases/8-2/8-2-release-notes/) Lists WHMCS 8.2's version history and EOL date, upgrade requirements, WP Toolkit automation, Predefined Addons, Web.com Site Builder, Validation.com identity verification, and removed UK VAT settings and WorldPay Invisible gateways. ## [8.3 Release Notes](https://docs.whmcs.com/releases/8-3/8-3-release-notes/) Lists WHMCS 8.3's version history and EOL date, upgrade requirements, in-app Stripe and PayPal dispute management, automated WordPress hosting, friendly URLs for products, and affiliate commission reversals. ## [8.4 Release Notes](https://docs.whmcs.com/releases/8-4/8-4-release-notes/) Lists WHMCS 8.4's version history and EOL date, upgrade requirements, OX App Suite email aliases, the Event Handling setting for faster WordPress checkout, downloadable SSL site seals, and the SagePay Tokens module replaced by SagePay Tokens v2. ## [8.5 Release Notes](https://docs.whmcs.com/releases/8-5/8-5-release-notes/) Lists WHMCS 8.5's version history and EOL date, upgrade requirements, cPanel SEO and multi-year DigiCert SSL sales via MarketConnect, shopping cart cross-selling, Client Area Home Page SSO, Plesk metric billing, and the deprecated BuycPanel module. ## [8.6 Release Notes](https://docs.whmcs.com/releases/8-6/8-6-release-notes/) Lists WHMCS 8.6's version history and EOL date, upgrade requirements, OAuth2 support for Microsoft mail services, PHP 8.1 support requiring ionCube Loader 12, payment gateway activation via Apps & Integrations, and removed ChronoPay and e-onlinedata modules. ## [8.7 Release Notes](https://docs.whmcs.com/releases/8-7/8-7-release-notes/) Lists WHMCS 8.7's version history and EOL date, upgrade requirements, the CentralNic Reseller module replacing RRPProxy, 360 Monitoring and NordVPN via MarketConnect, Instant Issuance for SSL certificates, and a Smarty Compatibility scan. ## [8.8 Release Notes](https://docs.whmcs.com/releases/8-8/8-8-release-notes/) Lists WHMCS 8.8's version history and EOL date, upgrade requirements, on-demand renewals, the WP Squared server provisioning module, encrypted MySQL connection settings, Stripe Link support, and removed Bizcn, LinkPoint, and SlimPay modules. ## [8.9 Release Notes](https://docs.whmcs.com/releases/8-9/8-9-release-notes/) Lists WHMCS 8.9's version history and EOL date, upgrade requirements, the PayPal Payments and PayPal Card Payments gateway modules, on-demand renewals for product addons, separated View/Manage Invoice permissions, and Duo Universal Prompt support. ## [9.0 Release Notes](https://docs.whmcs.com/releases/9-0/9-0-release-notes/) Lists WHMCS 9.0's version history, PHP 8.2 and MySQL 8.0 upgrade requirements, new credit/debit notes, Nexus cart, CSV ImportAssist, Stripe Dynamic Payments, VAT validation options, and removed PHP 7.2-8.1 and legacy Smarty tag support. ## [WHMCS Mobile Apps](https://docs.whmcs.com/mobile-app/whmcs-mobile-apps/) Explains aWHMCS (Android) and iWHMCS (iOS) app setup: ordering the addon, connecting to a self-hosted installation, generating an API access key in configuration.php, enabling a PIN, and troubleshooting connection, authentication, and JSON errors. ## [8.0 Change Log](https://docs.whmcs.com/releases/8-0/8-0-change-log/) ## [8.1 Change Log](https://docs.whmcs.com/releases/8-1/8-1-change-log/) ## [8.10 Change Log](https://docs.whmcs.com/releases/8-10/8-10-change-log/) ## [8.11 Change Log](https://docs.whmcs.com/releases/8-11/8-11-change-log/) ## [8.12 Change Log](https://docs.whmcs.com/releases/8-12/8-12-change-log/) ## [8.13 Change Log](https://docs.whmcs.com/releases/8-13/8-13-change-log/) ## [8.2 Change Log](https://docs.whmcs.com/releases/8-2/8-2-change-log/) ## [8.3 Change Log](https://docs.whmcs.com/releases/8-3/8-3-change-log/) ## [8.4 Change Log](https://docs.whmcs.com/releases/8-4/8-4-change-log/) ## [8.5 Change Log](https://docs.whmcs.com/releases/8-5/8-5-change-log/) ## [8.6 Change Log](https://docs.whmcs.com/releases/8-6/8-6-change-log/) ## [8.7 Change Log](https://docs.whmcs.com/releases/8-7/8-7-change-log/) ## [8.8 Change Log](https://docs.whmcs.com/releases/8-8/8-8-change-log/) ## [8.9 Change Log](https://docs.whmcs.com/releases/8-9/8-9-change-log/) ## [9.0 Change Log](https://docs.whmcs.com/releases/9-0/9-0-change-log/) ## [WHMCS Development](https://docs.whmcs.com/about-whmcs/whmcs-development/) Lists the WHMCS release cycle stages (Beta, Release Candidate, General Availability, Maintenance, Long-Term Support, End of Life), the four security severity ratings, and the status values for bug reports and feature requests. ## [WHMCS Distributions](https://docs.whmcs.com/about-whmcs/whmcs-distributions/) Distinguishes Full Release and Patch Set distribution types by zip filename and README contents, and documents the download-info API curl command with its type parameter and version, url, checksum, and changelog return fields. ## [WHMCS Glossary](https://docs.whmcs.com/about-whmcs/whmcs-glossary/) Alphabetically lists WHMCS terms from Access Hashes to Quotes, each with a definition, the admin menu path to configure it, and a link to related documentation.