• Apache Tomcat 7.

• Added new Cortex resources for offers and faceted search.

  Table 1. Offer and Facet Resources

  Category	API name	Description
  offer search	searches.offer-search-form	Provide the search form to query offers.
  	searches.offer-search-result	Returns offers as a result for a search query.
  faceted search	searches.facets	Provides the list of facets that are returned for the query submitted using searches.offer-search-form.
  	searches.facet	Represents a single facet in the list provided by the searches.facets resource.
  	searches.facet-selector	Provides a selector for each facet to select the facet values within the facet to filter search results. This resource links from the searches.facet resource.
  	searches.facet-selector-choice	Specifies whether the facet value is selected. The search result is refined for the selected facet values. This resource links from the searches.facet-selector resource.
  	searches.facet-value	Provides the facet value information. This resources links from searches.facet-selector-choice .
  /offers	Offers.offer	Represents an offer in the offers search result returned by the searches.offer-search-result resource. The result consists of a list of offers.
  	Offers.code-for-offer	Provides the unique code to identify the offer and inks from the offers.offer resource.
  	Offers.offer-items	Returns all items corresponding to an offer and links from the offers.offer resource.
  	Offers.offer-components	Provides the components of an offer if the offer is a bundle and links from the offers.offer resource.
  	Offerdefinitions.offer-definition	Provides information about an offer and links from the offers.offer resource.
  	availabilities.availability-for-offer	Provides information on an offers availability status and is a resource on the /availabilities. This resource links from the offers.offer resource.
  	prices.offer-price-range	Provides an offer's price range and is an offer price range resource on /prices. This resource links from the offers.offer resource.

• Added ETag support to Cortex to enable client caching. For more information about ETag support, see the HTTP Caching section.
• Converted /items, /itemdefinitions, and /itemselections Cortex resources to the Helix programming model. For more information, see the Upgrade Notes.

• Upgraded Tomcat 7 to Tomcat 9.
• Added cucumber tests defined in accelerators to run when executing Cortex system tests.
• Added new caching of cart and catalog rule bases to optimize large carts retrieval.
• Added a new shopping cart validator ShoppingItemNotAutoSelectedValidatorImpl to prevent deletion auto-selected bundle constituents that are added as line items. For more information about the validator, see Add-to-cart and purchase validation.

• Added facet configuration tab in the store configurations.
• Added additional parameters to PromotionRuleCreator.execute() to support creation of new rule actions in the extensions.

Tomcat 9.0.10 upgrade supports Solr 7.2.1 and includes the latest security updates. For this upgrade, the changes made in the following tomcat configuration files are:

• server.xml : Removed the Jasper Listener:

  <Listener className="org.apache.catalina.core.JasperListener" />

• context.xml:
  • Enabled caching of static resources with the following configuration:

    <Resource cachingAllowed="true" cacheMaxSize="${ep.tomcat.maxcachesize}" />

    .
  • Updated the jdbc/epjndi resource to use Tomcat JDBC DataSourceFactory to fix issues with duplicate beans with the following setting:

    factory="org.apache.tomcat.jdbc.pool.DataSourceFactory

• The Tomcat Maven plugin is upgraded to a customized version of the tomcat8-maven-plugin that is used to run Tomcat 9.

When you upgrade to Elastic Path Commerce 7.4:

• Update the server.xml and context.xml files for any custom webapps.
• Use tomcat8:run-war to start webapps from Maven command line.
• Update the deployment infrastructure to use Tomcat 9 if you do not use Elastic Path CloudOps for AWS for the deployment.

Solr is upgraded to 7.2.1 to support the faceted search functionality. The solrHome directory structure is updated to support the upgrade and the corresponding changes to Solr replication configuration in CloudOps for AWS is also updated.

When you upgrade to Elastic Path Commerce 7.4 in non-CloudOps deployment:

• Update the Solr replication configuration for the new directory structure.
• Rebuild the indices.

For Elastic Path Commerce 7.4 that uses CloudOps for deployment, upgrade CloudOps to 3.1 or later versions to support:

• Tomcat 9.0.10 upgrade
• Solr directory structure changes

For more information, see CloudOps Compatibility Matrix.

When you upgrade to Elastic Path Commerce 7.4:

• Convert extension codes, if any, to the Helix programming model.
• If you changed the permissions for the resources, modify the permission parameters to use the new fully-qualified names listed at Cortex Authorization. For example, the itemId parameter is renamed to items.item-id.
• Do not hard-code resource link URIs in the your code. Even though the Helix conversions modified the resource link URIs, the rel: names are the same.
• Start the Cortex webapp with the -DneedInfoEnabled=true flag to return legacy needinfo links for backward compatibility. The Structured messages are returned by the converted resources for all business state errors, validation errors, and needinfo conditions. For an InvalidBusinessStateException, Helix resources returns HTTP Status 409 Conflict instead of the Status 403 Forbidden in legacy programming model.

• Enabled the Cortex-Cucumber test suits to be used from other modules. For more information, see Testing Commerce Manager Functionality and Extending System Tests in Cortex.

• Resolved the access restriction issues when a user logs in to a linked store twice.
• Resolved the HTTP 500 error that Cortex returns when registered shopper's cart or order is accessed.
• Added a setup parameter to enable or disable fade and blink animations in Cortex Studio when refreshing the display. Animations are disabled by default.
• Added the max-age value that was missing in the Cortex resources when converted to Helix resources.
• Resolved excessive number of RxComputationScheduler threads for heavy load.
• Resolved the issue with request scope caching that is disabled if AspectJ cannot access DTD definitions on the Internet.
• Improved error messages for duplicate resource URI rule.
• Added support for Accept-Language header in Cortex-Studio.

• Resolved authorization issue for back order during checkout. One dollar authorization is not performed when the product is in stock.
• Resolved the shipping calculation issue for a cart when the sub-total changes. Shipping calculation is recalculated when the sub-total changes.
• Updated COMMERCE/SYSTEM/SEARCH/searchHost setting in System Configuration of a store to -1. With this setting, you can set both master and slave contexts.
• Updated import export tool configuration for stores to export all stores.