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# Preview Features
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Support for experimental and preview-level Java class file features, enabling forward compatibility with future Java versions.
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## Package Information
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The `aQute.bnd.classfile.preview` package is designed to provide an object model and parser for preview level Java class files.
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**Important Note:** This package is not supported API. Once class file changes are promoted from preview status, the support will be moved to the main `aQute.bnd.classfile` package.
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## Current Implementation Status
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**Current State:** The preview package currently contains only a `package-info.java` file with version annotation `@Version("0.610.0")`. No preview feature implementations are currently available.
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**Package Declaration:**
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```java { .api }
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/**
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 * This package provides an object model and parser for preview level Java class
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 * files.
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 * <p>
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 * This package is not supported API. Once class file changes are promoted from
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 * preview, the support will be moved to the {@code aQute.bnd.classfile}
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 * package.
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 */
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@Version("0.610.0")
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package aQute.bnd.classfile.preview;
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```
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## Future Development
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As new Java versions introduce preview features that affect class file structure, corresponding support will be added to this package. The package serves as a placeholder and staging area for:
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- Preview language features that modify class file format
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- Experimental Java constructs requiring special class file handling
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- Forward compatibility support for upcoming Java versions
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## Integration with Main Package
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When preview features are standardized, their implementations will be migrated from this package to the main `aQute.bnd.classfile` package to ensure stability and long-term support.
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## OSGi Bundle Context
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This package is part of the `biz.aQute.bnd.util` OSGi bundle and follows the bnd project's versioning and lifecycle management practices for preview and experimental features.