In this case, as well we would require an older version.ģ.
In some cases, some legacy applications specify that they require a certain version of Java to run. So, if we have an application that relies on these deprecated/removed features, we will require an older version of Java. Example: Applets were deprecated in Java 9 and later removed from Java 11 onwards. Also, some features may be deprecated in the newer version of Java. However, at times, some features of java do not work the same way as the older version due to changes in the code. all the features that worked in the earlier version will work in the same way in the next version as well. Java generally provides back-compatibility i.e. However, Oracle does not recommend this as it leaves your system open to security leaks.Ģ.1 Why would I need to run multiple versions of Java? So, Java itself does not uninstall the earlier versions while upgrading. The user can choose which version to run their Java application with. Java lets you install more than one version of Java on a system. Why does Java not Uninstall the older version when I upgrade? Flashback which affected Apple Macs is the most dramatic example of the security threat of old Java versions. Using an older version of Java poses serious security threats. Oracle on Įvery new Java version releases fixes related to security and bugs from the older version. Uninstalling older versions of Java from your system ensures that Java applications will run with the latest security and performance improvements on your system. Keeping old versions of Java on your system presents a serious security risk. We highly recommend that you uninstall all older versions of Java from your system. 1.1 Why should I uninstall Java versions which are old?īefore we see the steps to uninstall, we will first understand why keeping and using older versions of Java is dangerous. Oracle recommends upgrading to the newer versions and uninstalling the older one. 
The newer versions contain fixes for issues in the earlier version, newer features, classes, and packages. IntroductionĪ new version of Java comes roughly every 6 months (prior to Java 8, this cycle was about 2-3 years). In this article, we will learn why and how to uninstall older versions of Java from a Windows 10 system. Since then, there have been many versions of Java released.
Invented by James Gosling, Java is an extremely popular, object-oriented programming language. We will look at how to uninstall and remove Java completely from a Windows 10 system through tools.
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