# Public API and Backwards Incompatible Changes in Aspose.Slides for Java 15.6.0

> Review public API updates and breaking changes in Aspose.Slides for Java to smoothly migrate your PowerPoint PPT, PPTX and ODP presentation solutions.

Source: https://docs.aspose.com/slides/java/public-api-and-backwards-incompatible-changes-in-aspose-slides-for-java-15-6-0/
Updated: 2026-08-05


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This page lists all [added](/slides/java/public-api-and-backwards-incompatible-changes-in-aspose-slides-for-java-15-6-0/) classes, methods, properties and so on, any new restrictions and other [changes](/slides/java/public-api-and-backwards-incompatible-changes-in-aspose-slides-for-java-15-6-0/) introduced with the Aspose.Slides for Java 15.6.0 API.

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## **Public API changes**
#### **com.aspose.slides.DataLabel constructor signature has been changed**
The signature of the constructor has been changed from DataLabel(com.aspose.slides.IChartSeries) to DataLabel(com.aspose.slides.IChartDataPoint).
#### **Members com.aspose.slides.IDocumentProperties.getCount(), .getPropertyName(int index)., .remove(String name), .contains(String name) have been marked as Deprecated; substitutions have been introduced instead**
Methods IDocumentProperties.getCount(), IDocumentProperties.getPropertyName(int index)., .remove(string name), .contains(string name) have been marked as Deprecated. Methods IDocumentProperties.countOfCustomProperties(), IDocumentProperties.getCustomPropertyName(int index)., .removeCustomProperty(String name), .containsCustomProperty(string name) have been introduced instead.
#### **Method com.aspose.slides.INotesSlideManager.removeNotesSlide() has been added**
Method com.aspose.slides.INotesSlideManager.RemoveNotesSlide() has been added for removing notes slide of some slide.
#### **Method com.aspose.slides.ISlide.getNotesSlideManager() has been added. Methods ISlide.getNotesSlide() and ISlide.addNotesSlide() have been marked as Deprecated**
ISlide.getNotesSlide(), ISlide.addNotesSlide() methods have been marked as Deprecated. Use new method ISlide.getNotesSlideManager() instead.

``` java
import com.aspose.slides.*;

Presentation pres = new Presentation("presentation.pptx");
try {
    ISlide slide = pres.getSlides().get_Item(0);

    INotesSlide notes;

    // notes = slide.addNotesSlide(); - deprecated

    // notes = slide.getNotesSlide(); - deprecated

    notes = slide.getNotesSlideManager().getNotesSlide();

    notes = slide.getNotesSlideManager().addNotesSlide();

    slide.getNotesSlideManager().removeNotesSlide();
} finally {
    if (pres != null) pres.dispose();
}
```
#### **Method getAppVersion() has been added to com.aspose.slides.IDocumentProperties**
Method com.aspose.slides.IDocumentProperties.getAppVersion() has been added in order to get builtin document property, which represents internal version numbers used by Microsoft PowerPoint.
#### **Method remove() has been added to com.aspose.slides.IComment**
Method com.aspose.slides.IComment.remove() has been added for removing comment from the collection.
#### **Method remove() has been added to com.aspose.slides.ICommentAuthor**
Method ICommentAuthor.Remove has been added for removing author of comments from the collection.
#### **Methods clearCustomProperties() and clearBuiltInProperties() have been added to com.aspose.slides.IDocumentProperties**
Method com.aspose.slides.IDocumentProperties.clearCustomProperties() has been added for removing all custom document properties.
Method com.aspose.slides.IDocumentProperties.clearBuiltInProperties() has been added for removing and setting default values for all builtin document properties (Company, Subject, Author etc).
#### **Methods getBlackWhiteMode(), setBlackWhiteMode(byte) have been added to com.aspose.slides.IShape**
Methods getBlackWhiteMode(), setBlackWhiteMode(byte) have been added to com.aspose.slides.IShape.
The methods specify how a shape will render in black-and-white display mode. The possible values are specified in com.aspose.slides.BlackWhiteMode class.

|**Value** |**Meaning** |
| :- | :- |
|Color |Return with normal coloring |
|Automatic |Return with automatic coloring |
|Gray |Return with gray coloring |
|LightGray |Return with light gray coloring |
|InverseGray |Return with inverse gray coloring |
|GrayWhite |Return with gray and white coloring |
|BlackGray |Return with black and gray coloring |
|BlackWhite |Return with black and white coloring |
|Black |Return only with black coloring |
|White |Return with white coloring |
|Hidden |The object is not rendered |
#### **Methods removeAt(int), remove(ICommentAuthor) and clear() have been added to com.aspose.slides.ICommentAuthorCollection**
Method ICommentAuthorCollection.removeAt(int) has added for removing author by specified index. Method ICommentAuthorCollection.remove(ICommentAuthor) has added for removing specified author from collection. Method ICommentAuthorCollection.clear() has been added for removing all items from collection.