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Migrating Liferay Instances
Migrating Liferay Instances Liferay DXP 2025.Q2+ [Beta Feature](../../security-and-administration/administration/configuring-liferay/feature-flags.md#beta-feature-flags) You can migrate virtual...
Patching Liferay
Patching Liferay Liferay DXP uses Bundle Releases for its latest releases. Please see Updating Liferay if you are applying an Update. All Hotfixes are patches. If you're applying a Hotfix,...
Accessing DXP Patch Code
Accessing DXP Patch Code Subscribers Liferay DXP Fix Pack and Hotfix source code is available in a private GitHub repository called liferay-dxp. The source code facilitates identifying and...
Performing Rolling Restarts
Performing Rolling Restarts The rolling restart cluster maintenance process involves shutting down and updating nodes one at a time (while the other nodes are running) until they're all updated....
Custom Code and Patch Compatibility
Custom Code and Patch Compatibility Subscribers If you deploy code that customizes or patches your DXP 7.2 installation, you must maintain its compatibility with all patches you're using. The...
Applying a Hotfix
Applying a Hotfix Subscribers A Hotfix is a fix or collection of fixes delivered between Updates (or between Fix Packs for versions before DXP 7.3 SP3) to address a customer's confirmed critical...
Slimming Down Patched Installations
Slimming Down Patched Installations Subscribers In Liferay DXP 7.2, patch information is retained in Patch Files in the installation by default. This facilitates restoring DXP to a previous patch...
Using Slim Bundles
Using Slim Bundles Subscribers Liferay DXP 7.2 Fix Packs and Service Packs are also released bundled with the Tomcat application server. They are available as traditional bundles and Slim Bundles....
Configuring the Patching Tool
Configuring the Patching Tool Subscribers The Patching Tool can be adapted to any DXP installation. The tool's auto-discovery option is the easiest way to configure the Patching Tool. If you...
Advanced Patching for DXP 7.2
Advanced Patching for DXP 7.2 Here are the DXP 7.2 advanced patching topics: Using Slim Bundles demonstrates conserving disk space by using DXP fix pack bundles that don't include Patch Files. ...
Getting Patch Information
Getting Patch Information Subscribers You can see patch information at a glance, which helps maintain your installation and get help from Liferay Support. The Patching Tool's info command lists...
Installing Patches in Earlier Versions
Installing Patches in Earlier Versions Subscribers The Patching Tool applies Fix Packs (including Security Fix Packs and Service Packs) for versions prior to Liferay DXP 7.3 SP3. It also applies...
Liferay DXP 2024.Q1 Breaking Changes
Liferay DXP 2024.Q1 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2024.Q1. As the...
Liferay DXP 2023.Q4 Breaking Changes
Liferay DXP 2023.Q4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay DXP 2023.Q4. As the...
2023 Deprecations and Breaking Changes
2023 Deprecations and Breaking Changes Liferay quarterly releases introduce new features and enhancements while phasing out older or less-used functionality. Some features move to Maintenance Mode,...
Deprecations and Breaking Changes Reference
Deprecations and Breaking Changes Reference Liferay quarterly releases introduce new features and enhancements while phasing out older or less-used functionality. Some features move to Maintenance...
2023.Q4 Default Setting and Feature Flag Changes
2023.Q4 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
2024 Deprecations and Breaking Changes
2024 Deprecations and Breaking Changes Liferay quarterly releases introduce new features and enhancements while phasing out older or less-used functionality. Some features move to Maintenance Mode,...
Activating Liferay DXP
Activating Liferay DXP Starting with the 2026.Q1 release, all Liferay DXP installations—including trial and free-tier environments—require an XML (.xml) activation key to enable core features and...
System Properties
System Properties Liferay DXP/Portal runs in the application server's JVM. System properties can be passed directly to the JVM as arguments to java in the format -D[name1]=[value1] or can be loaded...
Configuring Unicast over TCP
Configuring Unicast over TCP If your network configuration or the geographical distance between cluster nodes prevents you from using UDP Multicast clustering, you can configure TCP Unicast. You...
Example: Creating a Simple DXP Cluster
Example: Creating a Simple DXP Cluster A fast, easy way to learn DXP clustering is to set up a two node DXP cluster environment on one machine using Docker containers. This example creates two DXP...
Setting Up Liferay
Setting Up Liferay After installing Liferay, configure it to meet your needs. Here are common setup tasks. Setup Tasks Preconfigure the System Activate Liferay (Subscription Required) ...
Clustering for High Availability
Clustering for High Availability Liferay DXP can scale to serve everything from the smallest to the largest web sites. Out-of-the-box, it's configured optimally for a single server environment. If...
Configuring Cluster Link
Configuring Cluster Link Enabling Cluster Link activates distributed caching. The cache is distributed across multiple Liferay DXP nodes running concurrently. Cluster Link uses Ehcache replication....
Database Configuration for Cluster Nodes
Database Configuration for Cluster Nodes At minimum, nodes in a DXP cluster must be configured to share the same database (or database cluster) in order to function. Optimizations discussed here...
Session Replication with Tomcat
Session Replication with Tomcat Liferay DXP 2024.Q3+/Portal GA92+ To ensure user session data is synchronized across all instances in the cluster, Liferay supports session replication. If one...
Configuring Mail
Configuring Mail Liferay can be configured to use a mail server to send email notifications for a variety of purposes: user registration, password management, site membership notifications, content...
2024.Q1 Default Setting and Feature Flag Changes
2024.Q1 Default Setting and Feature Flag Changes Most new versions of Liferay DXP include changes to the default settings. If you rely on the defaults from your old version, you should review the...
Updating Liferay
Updating Liferay Liferay DXP 7.3 SP3+/Portal 7.4 GA1+ Update your Liferay installation with Bundle Releases. The latest features, security releases, as well as library updates are all delivered...
Database Templates
Database Templates Below are templates (example portal properties and Docker environment variables) for configuring various databases as a built-in data source for Liferay DXP. MariaDB Portal...
Liferay Home
Liferay Home Liferay Home is the folder from which Liferay DXP/Portal launches applications, reads and applies configurations, loads JAR files, generates logs, and more. Liferay Home's location...
Portal Properties
Portal Properties Configuration options are specified using Portal Properties, sets of name/value pairs read from properties files and Docker environment variables on server startup. Default values...
Installing the Patching Tool
Installing the Patching Tool Subscribers The Patching Tool is easy to install and update. Installation Download the Patching Tool from the Customer Portal. For DXP 7.3+, download the latest...
Uninstalling Patches
Uninstalling Patches Subscribers After you install a patch, you may decide to restore your installation to a previous patch level. Here you'll learn how to Uninstall Patches Revert (uninstall)...
Database Configuration
Database Configuration By default for demonstration purposes, Liferay DXP/Portal is configured to use an embedded HSQL database. Beyond demonstration purposes, we recommend using a full-featured,...
Liferay Software Versions
Liferay Software Versions Starting with Liferay 7.4, Liferay adopted a rolling release model for delivering updates and fixes. This means Liferay 7.4 is a long living release with many releases for...
Updating Previous Versions of Liferay
Updating Previous Versions of Liferay Staying current with updates gives you the best security and quality. Security Updates are releases that address the latest security issues immediately. ...
Reference
Reference When installing Liferay, you must take into consideration the specifics of your environment. These topics help you integrate Liferay into your existing environment and aid in...
JVM Configuration
JVM Configuration As of Liferay DXP 2024.Q3+/Portal GA125+, Liferay DXP/Portal requires a Java JDK 17 or 21 (prior versions support JDKs 8 and 11) with specific JVM option settings. There are also...

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