[blog] Update the 2026 price changes blogpost

docs/pages/blog/2026-MUI-X-price-changes.md

@@ -19,7 +19,7 @@
 - Priority support available only to Enterprise customers
 - Security questionnaires and custom agreements available for orders above $12,000 USD
 - Premium self-service for purchases of up to 15 seats
-- Grandfathering for existing **v8 license renewals**
+- Grandfathering for existing **v8 licenses**
 
 ## Why we're updating pricing
 
@@ -31,12 +31,28 @@
 
 ## Grandfathering current customers
 
-We value our loyal customers and want to ensure a smooth transition:
+We value our loyal customers and want to ensure a smooth transition.
 
-- Customers renewing existing **v8 licenses** or adding seats to v8 licenses are **not affected** by these pricing changes.
-- Only customers upgrading to **v9** or moving from **Pro to Premium** will be affected.
+### Annual licenses
 
-If you're unsure how this applies to your team, please reach out to us at **sales@mui.com** and we'll be happy to clarify.
+Customers with active MUI X **v8 licenses** can continue using v8 and either renew their annual licenses or extend their perpetual support and maintenance plans at the **previous pricing**.
+
+If you want to upgrade to **MUI X v9**, you will need to request a **new v9 compatible license key**, since previous license keys will **not** work with v9. The new key will have the **same expiration date** as your current license, so upgrading does not reset or extend your license period. The v9 license key is compatible with any existing versions of MUI X.
+
+When your license term expires, you will have two options:
+
+- Renew your v9 license at the **new price**, with a discount applied to the **first** renewal
+- Renew your v8 license at the **previous price**
+
+This means existing customers can move to v9 whenever they're ready, or stay on v8 at the previous pricing.
+
+### Perpetual licenses
+
+Customers with perpetual licenses can also request a **new v9 compatible license key**. This key will grant access to all versions released **before** your support and maintenance expiration date listed on your license key. It does not extend your support and maintenance access beyond the original expiry date. The v9 license key is compatible with any existing versions of MUI X.
+
+If you want to upgrade to new versions released **after** your access to maintenance expires, or if you'd like to extend support for v9, you will need to extend your maintenance and support at the **new pricing**. You are welcome to extend maintenance and support for v8 versions released before April 8th, 2026 at the previous pricing.
+
+If you're unsure how these changes apply to your team, please reach out to us at **sales@mui.com** and we'll be happy to help.
 
 ## What's changing in licensing