diff --git a/core/smallobject_policy_v7.c b/core/smallobject_policy_v7.c
index 53b447f1..4617a9a2 100644
--- a/core/smallobject_policy_v7.c
+++ b/core/smallobject_policy_v7.c
@@ -20,9 +20,16 @@ static int g_learner_v7_enabled = -1;  // -1: uninit, 0: disabled, 1: enabled
 
 static inline int learner_v7_enabled(void) {
     if (unlikely(g_learner_v7_enabled < 0)) {
-        // Enable Learner only when v7 is enabled
-        const char* e = getenv("HAKMEM_SMALL_HEAP_V7_ENABLED");
-        g_learner_v7_enabled = (e && *e && *e != '0') ? 1 : 0;
+        // Phase v10: Learner default ON (when v7 is enabled)
+        // Can be disabled via ENV: HAKMEM_SMALL_LEARNER_V7_ENABLED=0
+        const char* e = getenv("HAKMEM_SMALL_LEARNER_V7_ENABLED");
+        if (e && *e && *e == '0') {
+            g_learner_v7_enabled = 0;  // explicitly disabled
+        } else {
+            // Default: ON (when v7 is also enabled)
+            const char* v7_e = getenv("HAKMEM_SMALL_HEAP_V7_ENABLED");
+            g_learner_v7_enabled = (v7_e && *v7_e && *v7_e != '0') ? 1 : 0;
+        }
     }
     return g_learner_v7_enabled;
 }