update version

Author: waruqi

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## master (unreleased)
 
+## v2.8.1
+
 ### New features
 
 * [#3821](https://github.com/xmake-io/xmake/pull/3821): Add longpath option for windows installer
@@ -1606,6 +1608,8 @@
 
 ## master (开发中)
 
+## v2.8.1
+
 ### 新特性
 
 * [#3821](https://github.com/xmake-io/xmake/pull/3821): windows 安装器添加长路径支持选项

core/xmake.lua

@@ -2,7 +2,7 @@
 set_project("xmake")
 
 -- version
-set_version("2.7.9", {build = "%Y%m%d"})
+set_version("2.8.1", {build = "%Y%m%d"})
 
 -- set xmake min version
 set_xmakever("2.2.3")

core/xmake.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 set_project "xmake"
-set_version "2.7.9" "%Y%m%d"
+set_version "2.8.1" "%Y%m%d"
 
 # set warning all
 set_warnings "all"