You can check the detailed release history in HelpNDoc's what's new page.

AI Assistant Tools

The AI Assistant now has access to a dedicated set of project-aware tools that allow it to read and modify HelpNDoc projects in structured and meaningful ways. These tools can retrieve project metadata, inspect and edit topics, manage keywords, adjust associations between them... This greatly enhances the assistant's ability to automate documentation tasks, perform complex operations, and maintain consistency across large projects. See: Tools available to the AI Assistant 

HelpNDoc Project Importer

Introducing a new HelpNDoc project importer that makes it much easier to reuse and consolidate work across multiple projects. Authors can selectively import topics, library items, and keywords from other HelpNDoc projects, with fine-grained options to bring in only those items that are actually used or keywords that are directly related to imported topics. This streamlines project migration and ensures that only relevant, consistent content is carried over. See: HelpNDoc project importer 

Reference Items

The new Reference feature introduces a robust, output-aware way to create cross-topic references without relying on hyperlinks. Reference items are resolved at build time using user-defined templates, allowing the same reference to adapt automatically to HTML-based and report-based outputs, including page number resolution for printed documents. See: Working with references 

New single-page Markdown template

A new publishing template has been added to export entire HelpNDoc projects as single-page Markdown files. In addition to the project's content, the generated file includes AI-friendly metadata such as project details (name, author, version, etc.) and per-topic information (IDs, captions, help contexts). This makes the Markdown output more useful not only for developers and content pipelines but also for large language models and other AI tools that can leverage structured metadata. See: Single page Markdown documentation settings 

Track incoming links in topic analyzer

The Topic Analyzer now shows all incoming links to a given topic, helping authors quickly identify which other topics reference it. This makes it much easier to track cross-references, spot unused or overly linked topics, and maintain a consistent documentation structure by revealing how content pieces relate to one another. See: Analyzing incoming topic links 

Picture, Image Map, Equation, and Barcode IDs and Class Names

Pictures, image maps, equations, and barcodes in HelpNDoc projects can now be assigned optional IDs and CSS class names, which are preserved across all HTML-based documentation exports. This enhancement gives developers and designers fine-grained control over styling, scripting, and interaction by enabling precise targeting of these elements in the generated output. It significantly increases flexibility for advanced layouts, custom behaviors, and seamless integration with existing web frameworks. See: Working with pictures 

Copy and paste topic content as Markdown

Topic content can now be copied and pasted as Markdown, making HelpNDoc much more compatible with external Markdown editors and workflows. Authors can quickly transfer formatted content into a plain text, portable syntax that integrates seamlessly with modern publishing pipelines and collaboration tools.

Multiple topic selection in TOC

The table of contents now supports multi-selection of topics, enabling authors to reorganize, move, or delete groups of topics at once. This significantly speeds up large-scale content management tasks and makes structuring complex documentation projects more efficient and intuitive. See: Managing the table of contents 

Added support for favorite locations

Users can now save up to nine favorite locations within their documentation project, including both the current topic and any selected content inside it. These favorites can be instantly recalled through keyboard shortcuts or the ribbon toolbar, providing a fast way to jump back to commonly edited sections or specific text ranges without losing context. See: Set and access favorite topics 

Scripting and Template Debugging

HelpNDoc 10.3 enhances scripting and template debugging with new diagnostic compilation instructions - {$hint}, {$warning}, {$error}, and {$fatal} - providing clearer, more structured feedback during compilation. In addition, the new CurrentSourceCodeLocation and CallerSourceCodeLocation runtime objects expose precise source-location details, making it easier to trace issues back to their origin, even in complex scripts or heavily reused templates. See: Debugging scripts and templates 

Some other improvements and bug fixes

Many bugs are fixed with each release as indicated in the "What's new" page. Some of them include:

Previous versions