diff --git a/mdds-2.0.3.tar.bz2 b/mdds-2.0.3.tar.bz2
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diff --git a/mdds-2.1.1.tar.bz2 b/mdds-2.1.1.tar.bz2
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diff --git a/mdds.spec b/mdds.spec
index b00839baedf71707198a92c024953d07be97b582..b3d4eec34e9f6be28898624b876c0b7ac6faf48f 100644
--- a/mdds.spec
+++ b/mdds.spec
@@ -1,10 +1,10 @@
 # header-only library
 %global debug_package %{nil}
 
-%global apiversion 2.0
+%global apiversion 2.1
 
 Name: mdds
-Version: 2.0.3
+Version: 2.1.1
 Release: 1
 Summary: A collection of multi-dimensional data structures and indexing algorithms
 
@@ -59,5 +59,11 @@ make check %{?_smp_mflags}
 %license LICENSE
 
 %changelog
+* Fri Apr 19 2024 shafeipaozi <sunbo.oerv@isrc.iscas.ac.cn> - 2.1.1-1
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:update version to 2.1.1. add flat_segment_tree,multi_type_vector,delayed_delete_vector and sorted_string_map.
+
 * Wed Sep 06 2023 Darssin <2020303249@mail.nwpu.edu.cn> - 2.0.3-1
 - Package init