Version Number Needs To Be Increased

You have been making changes to the plugin without increasing the version number, so that people already using it are not getting access to those changes. Increasing the version number is especially important to do for this plugin since you have fixed multiple security vulnerabilities and those already using the plugin would not have gotten those fixes. It is also required by the plugin guidelines.

https://ww.wp.xz.cn/plugins/multi-meta-box/