Fundamentals 7 min read

What’s New in IntelliJ IDEA 2024.1? Explore Java 22 Support and Enhanced IDE Features

IntelliJ IDEA 2024.1 introduces full line code completion, Java 22 support, a revamped terminal, sticky lines in the editor, improved indexing, scalable UI, language injection in string templates, enhanced log workflow, and a redesigned conflicts dialog, all aimed at streamlining developers' workflows.

macrozheng

Apr 9, 2024

What’s New in IntelliJ IDEA 2024.1? Explore Java 22 Support and Enhanced IDE Features

JetBrains released the 2024.1 major update for several IDEs, including IntelliJ IDEA, WebStorm, PhpStorm, and PyCharm.

Key Highlights

Support for Java 22 Features

IntelliJ IDEA 2024.1 adds support for the features released in JDK 22, such as final iteration over unnamed variables and patterns, the second preview of string templates and implicit class declarations, and instance main methods. It also supports the new

super(...)

preview state for

new

statements.

New Terminal (Beta)

The updated terminal offers visual enhancements and functional improvements, grouping commands into blocks, providing smooth navigation between blocks, command completion, and easy access to command history.

Sticky Lines in the Editor

Sticky lines keep important structural elements like class or method headers fixed at the top of the editor while scrolling large files, ensuring the scope remains visible and allowing quick navigation by clicking the fixed line.

IDE Features Available During Indexing for Java and Kotlin

Code highlighting, completion, and other basic IDE functions are now usable while the project is being indexed for Java and Kotlin, improving the startup experience. Features like “Go to Class” and “Go to Symbol” work even before indexing completes.

IDE Scaling Options

The IDE UI can now be scaled to 90%, 80%, or 70%, allowing flexible adjustment of element sizes.

Language Injection in String Templates

Developers can inject languages into string templates using annotations or the “Inject language or reference” intention (⌥Enter), with IDE suggestions for appropriate language annotations and the ability to edit injected fragments in a separate editor pane.

Improved Log Workflow

The log view now lets users navigate from console log messages directly to the generating code, suggests adding missing loggers, and simplifies inserting logger statements even when the logger instance is out of scope.

Redesigned Conflicts Detected Dialog

The dialog now mirrors the editor content for clearer conflict resolution, remembers window size, offers full keyboard accessibility, and includes updated buttons to streamline the refactoring workflow.