1 files changed, 3 insertions, 0 deletions
diff --git a/src/char/char.hpp b/src/char/char.hpp
index 049875b..8adac4d 100644
--- a/src/char/char.hpp
+++ b/src/char/char.hpp
@@ -42,6 +42,9 @@ std::chrono::seconds DEFAULT_AUTOSAVE_INTERVAL = 5_min;
 constexpr
 GmLevel default_gm_level = GmLevel::from(0_u32);
 
+// increase the min version when the protocol is incompatible with old m+ versions
+#define MIN_CLIENT_VERSION 1
+
 struct AuthFifoEntry
 {
     AccountId account_id;