Operating Liferay (on-prem!) with Elasticsearch 8 as a search engine leveraging its REST API compatibility mode through the bundled Elasticsearch 7 connector allowing Liferay deployments to upgrade the Elastic Stack to 8.x (opt-in), while also keeping compatibility with 7.x.

General Upgrade Instructions:

Please refer to the documentation for more details.

1. No action is required for deployments already using and insisting to stay on Elasticsearch 7.
2. Moving to Elasticsearch 8 may require a full reindex depending on the choice of the upgrade path:
   1. Upgrading the current Elasticsearch 7.x cluster to 8.x and connect DXP (Upgrade Elasticsearch | Elasticsearch Guide [8.10] | Elastic , recommended) → No reindex required
   2. Setting-up a new Elasticsearch 8.x cluster, connect DXP → Reindex required!

This is not a new connector, but enhancements to the existing bundled Elasticsearch 7 connector and other Elasticsearch-only features (like Commerce, Workflow Metrics or Search Tuning) leveraging the REST API compatibility mode of Elasticsearch 8 servers.

Liferay Portal 7.4 CE GA78 and Liferay DXP 7.4 Update 78 Tomcat Bundles and Docker Images come with Elasticsearch 7.17.10 for Sidecar.

This new frontend client extension allows users to replace the existing theme spritemap without the need to redeploy a theme. The spritemap should include all icons needed for the scope where it is used.

The Control Panel still uses the admin spritemap.

After registering the client extension, in the page template or page you need to use it, configure it from the design options menu:

To enable this client extension, do it from the Feature Flags management UI:

This feature allows developers to create or update an object and its related elements in a single request, optimizing the requests performed to the server, thus improving the overall performance of your solution.

Provided the necessary data for the related elements (ExternalReferenceCode, Id, etc), if the element already exists, it will relate the two objects, if the related element does not exist, it will create the object and it will relate them.

It is also possible to remove related elements by just updating the parent without the elements that are not related anymore.