This is the release roadmap for the next version of UMLBoard. Items in the Planned tab are scheduled for release. To suggest a feature from the Backlog, just upvote it — the most popular ones will be added. To create a new feature request, just click on the <a target="_blank" rel="noopener noreferrer nofollow" class="link" href="https://umlboard.featurebase.app/">Feedback</a> tab.

Backlog

Planned

In Progress

Done

Release 1.15

While users could already emulate enums by defining a class with an <code>&lt;&lt;enumeration&gt;&gt;</code> stereotype and use Freetext forms to represent enum values, there could also be native support for enums.An enum type should have a list of elements which represent the possible states of an enum. Often, Enums can also have specific values assigned to each Enum value like an integer or a string.

In Review

Add support for enums

UMLBoard

We could use our new color editor also for other elements like classes and relations.We would need a more generic service for color handling, a service that is able to update the colors of any given object based on its ID.

Add line and text color editing also for diagrams

We could add a field <code>list</code> to properties. A wheel menu entry could create a list out of a type.When the user types the type name and uses square brackets at the end, (with space, without space etc..), we could automatically make the property a list.

Let user create list attributes

Alignment of note texts can be aligned, we could extend this feature also for classes.

Add option to center, left or right align class content

Seems like for Microsoft whiteboard, people want more note colors:<a href="https://whiteboard.uservoice.com/forums/915919-whiteboard-for-windows-10/suggestions/39266938-rgb-color-for-notes" title="‌" rel="noopener noreferrer" target="_blank">https://whiteboard.uservoice.com/forums/915919-whiteboard-for-windows-10/suggestions/39266938-rgb-color-for-notes</a>Could also be an option to change the color of post-its in our diagram.We could also think about different note styles, like post its, plain and some kind of index cards that have different colored lines.

Add support for more note colors

We could use some kind of connection anchors (small diamonds) that let user make several connections (like conditions in a flow diagram).

Add anchor boxes to allow for multiple connectors

Check how difficult it would be to implement a Drag&amp;Drop Toolbox like in other UML designers? Maybe that could be an additional feature?

Add Toolbox for editing diagrams

Currently, images are not supported in markdown. When adding image support, we should check how to handle references to local images. Maybe for this, we would need support for project with multiple documents.Also check how we can export diagrams with image references in markdown notes.

Support images in markdowns

Users should be able to connect a class directly to a connection to define an association class. This is a good explanation of this feature:<a href="https://www.ibm.com/docs/en/rsm/7.5.0?topic=diagrams-association-classes" title="‌" rel="noopener noreferrer" target="_blank">https://www.ibm.com/docs/en/rsm/7.5.0?topic=diagrams-association-classes</a>

Create association classes

Instead of working with a single diagram, several diagrams and other files, like images, should be grouped under a project. This would have the advantage that diagram elements could be interchanged between different diagrams, .e.g., defining classes in the class diagram and access them in the sequence diagram.For this, we would also need multi-tab support to let users open and edit several diagrams at once.

Add multi-document support

UMLBoard should also support sequence diagrams. This will be a feature developed in several iterations. For the first version, sequence diagrams should be separated from class diagrams. Some <a href="https://jessems.com/posts/2023-07-22-the-unreasonable-effectiveness-of-sequence-diagrams-in-mermaidjs" rel="noopener noreferrer" target="_blank">ideas</a> about sequence diagrams, definitely worth a read.Some planned features<ul><li>Users should be able to choose whether they either want to create a sequence or a class diagram. We can use the same file format and adjust only the diagram type.</li></ul>Elements that should be supported<ul><li>Actors</li><li>Objects</li><li>Lifelines</li></ul>Check the UML specification for more elements and interaction (p. 595):<a href="https://www.omg.org/spec/UML/2.5.1/PDF](https://www.omg.org/spec/UML/2.5.1/PDF" rel="noopener noreferrer" target="_blank">UML Specification for Sequence Diagrams</a>

Add support for sequence diagrams

Electron apps can be published also on Steam, deployment also does not look to complicated, this is a very short introduction:<a target="_blank" rel="noopener noreferrer" class="link" href="https://codepen.io/punkydrewster713/post/package-web-project-for-steam">How to package your web project for platforms like Steam</a>It should also be checked if we need the Steam API or whether it's enough to just deploy the app via steam:<a target="_blank" rel="noopener noreferrer" class="link" href="https://liana.one/integrate-electron-steam-api-steamworks">How to integrate an HTML5 Electron based game with the Steam API</a>.Also check if the app can be deployed for all three platforms and whether the user license can be shared between platforms. <img data-width="100%" data-align="left" data-featurebase-content-key="683ef767aaff4d787be42a64/post/683efebf2aba4c2b76403262/01973709-5050-7262-b605-a1625516a52a/b64u-c3RlYW0tbG9nby5wbmc.png" data-featurebase-content-filename="steam-logo.png" src="https://683ef767aaff4d787be42a64.featurebase-attachments.com/c/post/683efebf2aba4c2b76403262/01973709-5050-7262-b605-a1625516a52a/b64u-c3RlYW0tbG9nby5wbmc.png?X-Amz-Expires=3600&amp;X-Amz-Date=20250710T150000Z&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=DO0098AADP7QLUJN4ZLF%2F20250710%2Ffra1%2Fs3%2Faws4_request&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Signature=443ed04bf15e48a5416141e15631ef1baa87403864b3bf624203426c61c76f08">