Column Populator utility documentation out of date for prior versions
Valid from Pega Version 7.2
The documentation for using the Column Populator utility to populate newly exposed database columns is out of date for Pega 7 Platform versions prior to 7.2. For all Pega 7 versions, refer to the Pega 7.2 help documentation for instructions about how to use this utility.
Cannot view all custom context posts in Pulse
Valid from Pega Version 7.2
When you use Pulse in a custom context, the custom context label is displayed as plain text instead of as a link that you can click to view all posts that are associated with the custom context.
For more information about Pulse, see the help topic Pulse.
Child case queries performance can be slow
Valid from Pega Version 7.2
Some customers have reported that performance is slow when they execute queries on child cases. This issue is often indicated by PEGA0005 (query time exceeded limit) alerts that can be correlated to these queries in the logs. To resolve the issue, add a database index to each of your work tables by using a multicolumn index on the pxCoverInsKey, pxObjClass, and pyStatusWork columns.
See Performance improvements for child case queries.
High number of busy waits when using Oracle SecureFiles
Valid from Pega Version 7.2.1
You might experience a high number of buffer busy waits when using Oracle SecureFiles for BLOB storage. An Oracle buffer busy wait occurs when a session cannot access a database block in the buffer cache, because another session is either reading the block into the buffer or changing the buffer. As a best practice, use Oracle 11.2.0.4 or later, because earlier versions have more problems with SecureFiles. In addition, to minimize the number of busy waits, set the hidden Oracle parameter _securefiles_concurrency_estimate to 50, and partition the table by using a composite range hash partition that is based on the pxCreateDateTime and pzInskey columns.
For more information, see Troubleshooting: High number of busy waits when using Oracle SecureFiles.
Email approval and instantiation not supported on multitenant systems
Valid from Pega Version 7.2.1
The Enable email approval check box appears on the General tab of an approval step in Case Designer in multitenant systems. It also appears on the Approval shape in Designer Studio. In addition, in Designer Studio, the Settings tab in Case Designer displays the option to configure email instantiation. However, because configuring email listeners is not supported on multitenant systems, you cannot enable email approval or email instantiation.
Ignore locale settings requires refresh after server restarts
Valid from Pega Version 7.2.1
The Ignore locale check box in operator preferences is selected to display Designer Studio in U.S. English. After a server restarts, screens initially ignore this setting. When the screen is refreshed or reopened, the screen is rendered as expected.
Verify ML Readiness error: Upgrades from Pega 7.1.0 through 7.1.8 do not replace nonversioned rules
Valid from Pega Version 7.2
Upgrading from any Pega 7 Platform version between Pega 7.1 and Pega 7.1.8 to Pega 7.2 does not automatically replace nonversioned rules. If you revalidated and saved a Pega 7.1.x rule after the timestamp on the Pega 7.2 version of the rule, upgrading to Pega 7.2 does not overwrite the saved rule. You might see either of the following behaviors:
- The upgrade fails with the following error message:
Verify ML Readiness - The upgrade succeeds, but you might be unable to open changed rule forms.
If the upgrade fails, see the Pega 7 Platform Upgrade Guide to force the upgrade.
This known issue does not affect Pega 7.1.9. After the upgrade has finished, apply Hotfix 27288. For information about obtaining and applying hotfixes, see Hotfix Manager.
Flexbox-based dynamic layouts not supported for Android 4.4 and earlier
Valid from Pega Version 7.2.1
Flexbox-based dynamic layouts are not supported in Android 4.4 and earlier. When developing applications to be used on devices running Android 4.4 and earlier, use the inline-block layout mode for dynamic layouts.
MBean Javadocs download file
Valid from Pega Version 7.2.1
The Pega 7 Platform MBean Javadocs are no longer provided in the distribution image; however, you can download the 
MBeanJMXJavadoc.zip file that was previously provided in the distribution image.
You can also use JConsole, which is included with the Java Development Kit (JDK), to obtain MBean information. The JConsole MBean tab provides attributes, operations, notifications, and other information on all the MBeans that are registered with the MBean server.
Cannot send mobile push notifications when the Pega 7 Platform is hosted on WebSphere Application Server
Valid from Pega Version 7.2.1
Push notifications are not sent to Android or iOS mobile apps when the Pega 7 Platform is hosted on WebSphere Application Server.