> For the complete documentation index, see [llms.txt](https://cover-docs.diffblue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cover-docs.diffblue.com/updates-and-upgrades/release-archive/2024-12-01.md).

# 2024-12-01

## 2024-12-01

This release introduces support for IntelliJ IDEA 2024.3 and removes support for 2024.1. It also resolves various issues with the CLI, Plugin and Reports.

## Important Notices

### Deprecations

* **IntelliJ IDEA 2024.1**: Support for IntelliJ IDEA 2024.1 ended with Cover 2024.11.02. Starting with Cover 2024.12.01, only IntelliJ IDEA versions 2024.2 and 2024.3 are supported.

### Changes to test code

* **Test Method Ordering**: In an upcoming release, Cover will adjust test method ordering and imports for inner classes. This will cause a one-time churn, resulting in larger-than-usual diffs in your test code.

### Diffblue Cover is now generally available to individual developers and small teams.

We've [just launched](https://www.diffblue.com/resources/diffblue-cover-is-now-generally-available-to-individual-developers/) our Developer Edition license. From today, individual developers can leverage the power of AI they can trust for unit test generation and maintenance.

### Enhancements

* Refactor: Diffblue Cover is now able to automatically fix issues with Surefire plugin configuration \[Ref: TG-22370]
* Cover now supports Gradle 8.11.x. \[Ref: TG-22305]
* Plugin: Cover now displays a progress dialog after clicking 'Accept All' when the Test Review beta feature is enabled, showing the progress of inserting tests into the codebase. \[Ref: TG-22244]
* Plugin: Cover now supports IntelliJ IDEA Community Edition 2024.3 and IntelliJ IDEA Ultimate 2024.3. \[Ref: TG-21975]

### Resolved Issues

* Reports: Resolved an issue which caused performance problems, for some deployments, while loading Telemetry graphs. Graphs are now split across tabs to improve page load times. \[Ref: TG-22414]
* CLI: Resolved an issue which, in some circumstances, could cause `dcover fix-build` or `dcover refactor` to report `FAILURE: Build failed with an exception.` on a Gradle project. \[Ref: TG-22374]
* CLI: Resolved an issue which caused Cover to report `Recipe validation error in [...]` while attempting to run `dcover fix-build`. \[Ref: TG-22358]
* Resolved an issue which prevented Cover from writing assertions for methods that statically returned `object` while returning a `boolean` at runtime. \[Ref: TG-22325]
* Resolved an issue which could cause test validation to fail when a particular combination of Maven plugins were present. \[Ref: TG-22299]
* Resolved an issue which, in some circumstances, caused Cover to report `F009` (Internal Error) while writing tests for code involving an `ObjectMapper` and Jackson Databind < 2.2.0. \[Ref: TG-22296]
* Resolved an issue which, in some circumstances, for some project configurations, could cause environment checks to report an inaccurate JaCoCo coverage. \[Ref: TG-22219]

### Known Issues

* Plugin: Cover incorrectly provides a menu option to write tests for a test file. \[Ref: TG-17163]
* Cover supports Open JDK and Oracle JDK; results with other JDKs may differ due to the variability in their implementations of Java. \[Ref: TG-19345]
* Reports: Cover only counts Java code towards the total line count metrics. Kotlin code is not currently included. \[Ref: TG-22088]
* Reports: Total lines of code metric can incorrectly count a multi-line comment at the end of a line of code, resulting in fewer than expected lines counted. \[Ref: TG-22089]
* Reports: Following an upgrade, the 'Total Lines of Code' card may show 0 until a new reports bundle has been uploaded. \[Ref: TG-22094]
* In some circumstances, Cover may write more simplistic tests with less meaningful assertions when Spring Boot dependency injection is disabled. \[Ref: TG-22102]
* In some circumstances, Cover will still write Spring Boot tests when Spring Boot dependency injection is disabled. \[Ref: TG-22103]
* Cover may write failing TestNG tests when Spring Boot dependency injection is disabled. \[Ref: TG-22107]