diff --git a/app/src/test/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersionsTest.kt b/app/src/test/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersionsTest.kt
new file mode 100644
index 0000000000..d472f0ebc2
--- /dev/null
+++ b/app/src/test/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersionsTest.kt
@@ -0,0 +1,20 @@
+package info.nightscout.androidaps.plugins.constraints.versionChecker
+
+import org.junit.Assert.*
+import org.junit.Test
+
+class AllowedVersionsTest {
+
+    @Test
+    fun generateSupportedVersionsTest() {
+        val definition = AllowedVersions().generateSupportedVersions()
+        assertNull(AllowedVersions().findByApi(definition, 0))
+        assertFalse(AllowedVersions().findByApi(definition, 1)?.has("supported") ?: true)
+        assertFalse(AllowedVersions().findByApi(definition, 23)?.has("supported") ?: true)
+        assertEquals("2.6.2", AllowedVersions().findByApi(definition, 24)?.getString("supported"))
+        assertEquals("2.6.2", AllowedVersions().findByApi(definition, 25)?.getString("supported"))
+        assertEquals("2.8.2", AllowedVersions().findByApi(definition, 26)?.getString("supported"))
+        assertEquals("2.8.2", AllowedVersions().findByApi(definition, 27)?.getString("supported"))
+        assertEquals("2.8.2", AllowedVersions().findByApi(definition, 28)?.getString("supported"))
+    }
+}
\ No newline at end of file
diff --git a/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersions.kt b/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersions.kt
new file mode 100644
index 0000000000..ae320cf929
--- /dev/null
+++ b/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/AllowedVersions.kt
@@ -0,0 +1,45 @@
+package info.nightscout.androidaps.plugins.constraints.versionChecker
+
+import org.json.JSONArray
+import org.json.JSONException
+import org.json.JSONObject
+
+class AllowedVersions {
+
+    fun generateSupportedVersions(): String =
+        JSONArray()
+            .put(JSONObject().apply {
+                put("minAndroid", 1) // 1.0
+                put("maxAndroid", 23) // 6.0.1
+            })
+            .put(JSONObject().apply {
+                put("minAndroid", 24) // 7.0
+                put("maxAndroid", 25) // 7.1.2
+                put("supported", "2.6.2")
+            })
+            .put(JSONObject().apply {
+                put("minAndroid", 26) // 8.0
+                put("maxAndroid", 27) // 8.1
+                put("supported", "2.8.2")
+            })
+            .put(JSONObject().apply {
+                put("minAndroid", 28) // 9.0
+                put("maxAndroid", 99)
+                put("supported", "2.8.2")
+            })
+            .toString()
+
+    fun findByApi(definition: String?, api: Int): JSONObject? {
+        if (definition == null) return null
+        try {
+            val array = JSONArray(definition)
+            for (i in 0 until array.length()) {
+                val record = array[i] as JSONObject
+                if (api in record.getInt("minAndroid")..record.getInt("maxAndroid")) return record
+            }
+        } catch (e: JSONException) {
+        }
+        return null
+    }
+
+}
\ No newline at end of file
diff --git a/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/VersionCheckerUtils.kt b/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/VersionCheckerUtils.kt
index a3df7d43c6..acb830637f 100644
--- a/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/VersionCheckerUtils.kt
+++ b/core/src/main/java/info/nightscout/androidaps/plugins/constraints/versionChecker/VersionCheckerUtils.kt
@@ -2,6 +2,7 @@ package info.nightscout.androidaps.plugins.constraints.versionChecker
 
 import android.content.Context
 import android.net.ConnectivityManager
+import android.os.Build
 import info.nightscout.androidaps.core.R
 import info.nightscout.androidaps.interfaces.ConfigInterface
 import info.nightscout.androidaps.logging.AAPSLogger
@@ -49,7 +50,8 @@ class VersionCheckerUtils @Inject constructor(
     private fun checkVersion() = if (isConnected()) {
         Thread {
             try {
-                val version: String? = findVersion(URL("https://raw.githubusercontent.com/nightscout/AndroidAPS/master/app/build.gradle").readText())
+                val definition: String = URL("https://raw.githubusercontent.com/nightscout/AndroidAPS/versions/definition.json").readText()
+                val version: String? = AllowedVersions().findByApi(definition, Build.VERSION.SDK_INT)?.optString("supported")
                 compareWithCurrentVersion(version, config.VERSION_NAME)
             } catch (e: IOException) {
                 aapsLogger.error(LTag.CORE, "Github master version check error: $e")