Asset Libraries — Asset Libraries now support Staging to reduce the amount of effort and cost required to organize content where multiple sites require the same content but also require data isolation.
Documents and Media — Documents can now have Expiration Dates set on them - similar to Web Content - to prevent them from being published, for example, due to a temporary license.
Forms, Web Content, Documents and Media — Forms, Web content, and Documents and Media now share a common user experience for both definition of new Forms, Structures and Types as well as for authoring new entries.
Item Selector — The Item Selector now supports creation of Folders for Documents and Media, to optimize the process where documents are uploaded directly during the content creation process.
JS Dependency Declaration — JS Developers can now create projects for a given Liferay version just by specifying the target platform, instead of declaring all JS dependencies one by one. This brings JS development into step with Java development.
Liferay Enterprise Search — Liferay Enterprise Search (LES) features are now bundled with DXP 7.4 and available to all DXP subscribers unsupported. In order to gain support customers will require an active Liferay Enterprise Search subscription.
Publications — Users can now invite teammates to join a publication for viewing, editing, and publishing. Users can also collaborate by adding comments to publications.
Search Re-indexing — System Administrators can now limit the scope of Reindex actions to selected Virtual instances.
Site Templates — Performance and flexibility of site template propagation has been improved with new features.
Staging — Staging performance has been improved with additional System Level configuration options to control whether Parent pages of a published page are published along with it.
Theme Architecture — Page load performance has been improved by reducing the CSS footprint loaded for each page. Further to this, Admin-only interfaces are no longer changed by theme changes, making it easier for developers to build custom themes.
Translation — Page authors can now translate the inline content of Content Pages. Further to this, Content Pages and Web Content Articles can now be automatically translated using the ML-based Google Cloud Translation service.
Video and Audio Preview — Xuggler, an open source library used to generate audio and video previews has been deprecated, and has been replaced by ffmpeg.