diff --git a/config.m4 b/config.m4
index 55b96c79..127f3e64 100644
--- a/config.m4
+++ b/config.m4
@@ -314,6 +314,7 @@ PHP_ARG_WITH(libbson, Use system libbson,
     fi
     PHP_EVAL_INCLINE($LIBBSON_INC)
     PHP_EVAL_LIBLINE($LIBBSON_LIB, MONGODB_SHARED_LIBADD)
+    AC_DEFINE(HAVE_SYSTEM_LIBBSON, 1, [Use system libbson])
   else
     PHP_ADD_SOURCES_X(PHP_EXT_DIR(mongodb)[src/libbson/src/yajl], $YAJL_SOURCES,            [$STD_CFLAGS $MAINTAINER_CFLAGS], shared_objects_mongodb, yes)
     PHP_ADD_SOURCES_X(PHP_EXT_DIR(mongodb)[src/libbson/src/bson], $BSON_SOURCES,            [$STD_CFLAGS $MAINTAINER_CFLAGS], shared_objects_mongodb, yes)
@@ -332,7 +333,7 @@ PHP_ARG_WITH(libmongoc, Use system libmongoc,
     AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
     AC_MSG_CHECKING(for libmongoc)
     if test -x "$PKG_CONFIG" && $PKG_CONFIG --exists libmongoc-1.0 && $PKG_CONFIG --exists libmongoc-priv; then
-      if $PKG_CONFIG libmongoc-1.0 --atleast-version 1.1.5; then
+      if $PKG_CONFIG libmongoc-1.0 --atleast-version 1.2.0; then
         LIBMONGOC_INC=`$PKG_CONFIG libmongoc-priv --cflags`
         LIBMONGOC_LIB=`$PKG_CONFIG libmongoc-priv --libs`
         LIBMONGOC_VER=`$PKG_CONFIG libmongoc-priv --modversion`
@@ -340,13 +341,14 @@ PHP_ARG_WITH(libmongoc, Use system libmongoc,
         CFLAGS="$CFLAGS -DMONGOC_I_AM_A_DRIVER"
 
       else
-        AC_MSG_ERROR(system libmongoc must be upgraded to version >= 1.1.6)
+        AC_MSG_ERROR(system libmongoc must be upgraded to version >= 1.2.0)
       fi
     else
       AC_MSG_ERROR(pkgconfig and mongoc must be installed)
     fi
     PHP_EVAL_INCLINE($LIBMONGOC_INC)
     PHP_EVAL_LIBLINE($LIBMONGOC_LIB, MONGODB_SHARED_LIBADD)
+    AC_DEFINE(HAVE_SYSTEM_LIBMONGOC, 1, [Use system libmongoc])
   else
     CPPFLAGS="$CPPFLAGS -DBSON_COMPILATION -DMONGOC_COMPILATION -DMONGOC_TRACE"
 
diff --git a/php_phongo.c b/php_phongo.c
index 7ea3b89b..bfae9e18 100644
--- a/php_phongo.c
+++ b/php_phongo.c
@@ -1883,7 +1883,23 @@ mongoc_client_t *php_phongo_make_mongo_client(const mongoc_uri_t *uri, zval *dri
 		php_phongo_populate_default_ssl_ctx(ctx, driverOptions);
 	}
 
-	MONGOC_DEBUG("Creating Manager, phongo-%s[%s] - mongoc-%s, libbson-%s", MONGODB_VERSION_S, MONGODB_STABILITY_S, MONGOC_VERSION_S, BSON_VERSION_S);
+	MONGOC_DEBUG("Creating Manager, phongo-%s[%s] - mongoc-%s(%s), libbson-%s(%s), php-%s",
+		MONGODB_VERSION_S,
+		MONGODB_STABILITY_S,
+		MONGOC_VERSION_S,
+#ifdef HAVE_SYSTEM_LIBMONGOC
+		mongoc_get_version(),
+#else
+		"bundled",
+#endif
+		BSON_VERSION_S,
+#ifdef HAVE_SYSTEM_LIBBSON
+		bson_get_version(),
+#else
+		"bundled",
+#endif
+		PHP_VERSION
+	);
 	client = mongoc_client_new_from_uri(uri);
 
 	if (!client) {
@@ -2393,8 +2409,19 @@ PHP_MINFO_FUNCTION(mongodb)
 	php_info_print_table_header(2, "mongodb support", "enabled");
 	php_info_print_table_row(2, "mongodb version", MONGODB_VERSION_S);
 	php_info_print_table_row(2, "mongodb stability", MONGODB_STABILITY_S);
+#ifdef HAVE_SYSTEM_LIBMONGOC
+	php_info_print_table_row(2, "libmongoc headers version", MONGOC_VERSION_S);
+	php_info_print_table_row(2, "libmongoc library version", mongoc_get_version());
+#else
+	/* Bundled libraries, buildtime = runtime */
 	php_info_print_table_row(2, "libmongoc version", MONGOC_VERSION_S);
+#endif
+#ifdef HAVE_SYSTEM_LIBBSON
+	php_info_print_table_row(2, "libbson headers version", BSON_VERSION_S);
+	php_info_print_table_row(2, "libbson library version", bson_get_version());
+#else
 	php_info_print_table_row(2, "libbson version", BSON_VERSION_S);
+#endif
 	php_info_print_table_end();
 
 	DISPLAY_INI_ENTRIES();
diff --git a/tests/manager/manager-debug-001.phpt b/tests/manager/manager-debug-001.phpt
index 425e74f9..e1ac403d 100644
--- a/tests/manager/manager-debug-001.phpt
+++ b/tests/manager/manager-debug-001.phpt
@@ -30,7 +30,7 @@ foreach($content as $line) {
 ===DONE===
 <?php exit(0); ?>
 --EXPECTF--
-[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s, libbson-1.%s
+[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s(%s), libbson-1.%s(%s), php-%s
 [%s]     mongoc: TRACE   > ENTRY: mongoc_bulk_operation_execute():%d
 [%s]     mongoc: TRACE   >  EXIT: mongoc_bulk_operation_execute():%d
 ===DONE===
diff --git a/tests/manager/manager-debug-002.phpt b/tests/manager/manager-debug-002.phpt
index 45c6479b..e80c2b06 100644
--- a/tests/manager/manager-debug-002.phpt
+++ b/tests/manager/manager-debug-002.phpt
@@ -20,7 +20,7 @@ ini_set("mongodb.debug", "off");
 <?php exit(0); ?>
 --EXPECTF--
 %a
-[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s, libbson-1.%s
+[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s(%s), libbson-1.%s(%s), php-%s
 %a
 [%s]     PHONGO: DEBUG   > Connecting to '%s:%d[mongodb://%s:%d]'
 %a
diff --git a/tests/manager/manager-debug-003.phpt b/tests/manager/manager-debug-003.phpt
index 4d04bd1a..2ec2a2b4 100644
--- a/tests/manager/manager-debug-003.phpt
+++ b/tests/manager/manager-debug-003.phpt
@@ -21,6 +21,6 @@ ini_set("mongodb.debug", "off");
 --EXPECTF--
 %a
 [%s]     PHONGO: TRACE   > ENTRY: php_phongo_make_mongo_client():%d
-[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s, libbson-1.%s
+[%s]     PHONGO: DEBUG   > Creating Manager, phongo-1.%d.%d%S[%s] - mongoc-1.%s(%s), libbson-1.%s(%s), php-%s
 %a
 ===DONE===