How to Upgrade to IntelliJ IDEA 12.21: A Step-by-Step Guide
IntelliJ IDEA is one of the most popular and powerful integrated development environments (IDEs) for Java and other programming languages. It offers a rich set of features, such as code completion, refactoring, debugging, testing, version control, and more.
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If you are using an older version of IntelliJ IDEA, you might be missing out on some of the latest improvements and enhancements that the IDE has to offer. That's why it's important to keep your IntelliJ IDEA up to date and enjoy the benefits of the newest version.
In this article, we will show you how to upgrade to IntelliJ IDEA 12.21, the latest release as of April 2023. We will cover the following topics:
What's new in IntelliJ IDEA 12.21
How to check your current version of IntelliJ IDEA
How to download and install IntelliJ IDEA 12.21
How to migrate your settings and projects from the previous version
How to troubleshoot common issues and errors
By the end of this article, you will be able to upgrade to IntelliJ IDEA 12.21 and enjoy its new features and improvements.
What's new in IntelliJ IDEA 12.21
IntelliJ IDEA 12.21 is the latest major update of the IDE that brings many new features and enhancements for Java and other programming languages. Some of the highlights include:
Support for Java 18, the latest version of the Java programming language that introduces new features such as pattern matching for switch expressions, text blocks, sealed classes, and records.
Improved performance and usability of the code editor, with faster indexing, highlighting, navigation, completion, and refactoring.
New and updated plugins for popular frameworks and tools, such as Spring Boot, Micronaut, Quarkus, Gradle, Maven, Docker, Kubernetes, and more.
Enhanced support for web development, with improved support for HTML5, CSS3, JavaScript, TypeScript, React, Angular, Vue.js, and more.
Better integration with version control systems, such as Git, GitHub, GitLab, Bitbucket, and more.
New tools for testing and debugging, such as JUnit 5.8 support, code coverage reports, live reloading, hot swap, and more.
For a complete list of what's new in IntelliJ IDEA 12.21, you can visit the official What's New page.
How to check your current version of IntelliJ IDEA
Before you upgrade to IntelliJ IDEA 12.21, you need to check your current version of the IDE and make sure that it is compatible with the new version. To do that:
Open IntelliJ IDEA on your computer.
Go to Help > About.
A dialog box will appear that shows your current version number and build date.
If your current version is lower than 12.21 (for example, 12.20 or 11.0), you can proceed with the upgrade process. If your current version is already 12.21 or higher (for example,
13.0 or 14.0), you don't need to upgrade as you already have the latest version.
How to download and install IntelliJ IDEA 12.21
To download and install IntelliJ IDEA 12.21 on your computer:
Go to the official Download page.
Select your operating system (Windows, Mac OS X, or Linux) and edition (Community or Ultimate).
Click on the Download button and save the installer file on your computer.
Run the installer file and follow the instructions on the screen.
When the installation is complete, launch IntelliJ IDEA 12.21 from your desktop or start menu.
How to migrate your settings and projects from the previous version 29c81ba772
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