Why Do Wordpress Plugins Need To Be Updated?
Plugins on Wordpress have been developed and designed by a separate company or organisation outside of Wordpress. The reason that Wordpress works so well is that anyone can develop their own apps and make them available for other Wordpress users to take advantage of. This means that they are appealing to companies research and development aspirations and thus encourages them to develop great apps that everyone can use/purchase and take advantage of.
Often when developers update or add features to their self-developed plugins, users who have it installed on their site, will need to upgrade the plugin to be able to use those new features. Often people who are not interested in updated versions fail to update their plugins and more often than not this results in the current version of their plugin not working as it should.
The best advice we could give you is to look out for plugin update alerts, sometimes you’ll be given notice of when the update needs to take place and update as and when prompted to do so. Many plugin owners are also very aware of online security and in the best interests of their users will prompt regular updates to increase the plugins security level and blog out intruders.