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Capability
Feature
Data Cleanup
Data Cleanup Available 7.3+ When you're done using an obsolete Liferay app or capability, you can remove its data. You can use the Control Panel or a configuration file to do data cleanup. Here's...
Data Removal
Data Removal Available 7.4+ Use the Data Removal tool to erase unnecessary application data, such as expired journal articles and publication previews. To remove data, Open the Global Menu...
Database Pruning for Faster Upgrades
Database Pruning for Faster Upgrades The more data you have the longer your data upgrade takes. Unneeded site data is a common occurrence. Pruning the database of unneeded data improves upgrade...
Database Tuning for Upgrades
Database Tuning for Upgrades Performing an upgrade impacts the database differently from daily running in production. Because of this, you should tune your database for the upgrade process before...
Example: Removing Intermediate Journal Article Versions
Example: Removing Intermediate Journal Article Versions These instructions and code samples demonstrate removing intermediate Journal Article versions. In the script console, you can remove...
Maintenance Mode and Deprecations in 7.4
Maintenance Mode and Deprecations in 7.4 With each new Liferay DXP and Liferay Portal release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a...
7.4 Breaking Changes
Official Documentation
7.4 Breaking Changes Breaking changes break or significantly alter existing functionality or code structure. Here are all of the breaking changes for Liferay 7.4, starting with the latest quarterly...
Renamed Language Keys
Renamed Language Keys In Liferay DXP/Portal 7.4, module language keys were centralized to a module called portal-language-lang. Source location: ...
Post-Upgrade Considerations
Post-Upgrade Considerations After upgrading the database, you should configure Liferay for production again and check up on feature changes that might affect your Liferay instance. Re-enable...
Troubleshooting Upgrades
Troubleshooting Upgrades Liferay has many out-of-the-box tools and features to identify and solve issues that may arise when performing an upgrade. To troubleshoot, you can upgrade modules...
Common Upgrade Issues
Common Upgrade Issues Skipping an upgrade step or creating custom references to the Liferay database, can cause upgrade issues. The following questions and answers address some common situations. ...
Monitoring Upgrades with MBeans
Monitoring Upgrades with MBeans Liferay DXP 7.4 U76 / Liferay Portal 7.4 GA76 When upgrade upon startup is enabled, the upgrade process can be monitored with MBeans through a JVM management tool...
Upgrade Log Context
Upgrade Log Context Liferay DXP 7.4 U72 / Liferay Portal 7.4 GA72 Enable the upgrade log context to display identifiers for upgrade related processes in your console logs. The possible identifiers...
Upgrade Report
Upgrade Report Available 7.4+ When you perform upgrades, it is important to know the changes made and any issues that occurred. The upgrade status returns combined results for core upgrades,...
7.4 Deprecations and Breaking Changes
7.4 Deprecations and Breaking Changes
Default Setting Changes in 7.3
Default Setting Changes in 7.3 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 changes and decide...
Maintenance Mode and Deprecations in 7.3
Maintenance Mode and Deprecations in 7.3 With each new DXP release, a feature may not warrant continued enhancements or may become obsolete. Stopping enhancements for a feature puts it in...
Updating Customizations
Updating Customizations Plugins (e.g., themes, apps, and customizations) you've developed must be adapted to the new Liferay version. This can be as simple as updating dependencies or involve...
Migrating Configurations and Properties
Migrating Configurations and Properties Your current DXP installation's OSGi configurations (7.0+) and properties (such as portal properties and system properties) set up your DXP instance to fit...
Upgrading Modules Using Gogo Shell
Upgrading Modules Using Gogo Shell To troubleshoot upgrade issues with particular modules, it may be necessary to test and perform upgrades on a per-module basis, instead of en-masse. Liferay has...