From 54233305e4e887e231b2d778981a8903dae1b13b Mon Sep 17 00:00:00 2001
From: DaVinci9196 <davinci9196@gmail.com>
Date: Wed, 29 Apr 2026 14:31:24 +0800
Subject: [PATCH] Reject isBillingSupported requests with apiVersion above 28
 to avoid serving clients using newer Play Billing APIs that are not
 implemented.

---
 .../java/org/microg/vending/billing/InAppBillingServiceImpl.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vending-app/src/main/java/org/microg/vending/billing/InAppBillingServiceImpl.kt b/vending-app/src/main/java/org/microg/vending/billing/InAppBillingServiceImpl.kt
index 39a70ece52..7e325af29f 100644
--- a/vending-app/src/main/java/org/microg/vending/billing/InAppBillingServiceImpl.kt
+++ b/vending-app/src/main/java/org/microg/vending/billing/InAppBillingServiceImpl.kt
@@ -192,7 +192,7 @@ class InAppBillingServiceImpl(private val context: Context) : IInAppBillingServi
             Log.w(TAG, "isBillingSupported: Billing is disabled")
             return resultBundle(BillingResponseCode.BILLING_UNAVAILABLE, "Billing is disabled")
         }
-        if (apiVersion < 3) {
+        if (apiVersion !in 3..28) {
             return resultBundle(BillingResponseCode.BILLING_UNAVAILABLE, "Client does not support the requesting billing API.")
         }
         if (extraParams != null && apiVersion < 7) {