diff --git a/mdbx.h++ b/mdbx.h++
index 9f52793d..58a2b7ce 100644
--- a/mdbx.h++
+++ b/mdbx.h++
@@ -3840,6 +3840,9 @@ public:
     /// \brief Returns the maximal write transaction size (i.e. limit for
     /// summary volume of dirty pages) in bytes for specified page size.
     static inline size_t transaction_size_max(intptr_t pagesize);
+
+    /// \brief Returns the maximum opened map handles, aka DBI-handles.
+    static inline size_t max_map_handles(void);
   };
 
   /// \brief Returns the minimal database size in bytes for the environment.
@@ -6125,6 +6128,8 @@ inline size_t env::limits::transaction_size_max(intptr_t pagesize) {
   return static_cast<size_t>(result);
 }
 
+inline size_t env::limits::max_map_handles(void) { return MDBX_MAX_DBI; }
+
 inline env::operate_parameters env::get_operation_parameters() const {
   const auto flags = get_flags();
   return operate_parameters(max_maps(), max_readers(),