The following hotfix is available for Appian 19.4.
This is a cumulative hotfix package that includes Hotfix Package A as well as new hotfixes in a single download and a set of instructions. This package is required for any Appian 19.4 installations not currently on Hotfix Package B. After installing, you will be running on Appian 19.4 Hotfix Package B.
See the Installation section at the bottom of this page for instructions on how to install this hotfix package.
Security Updates - High
AN-145504 - Critical
For security reasons, the Query DB Node smart service has been updated. Customers running the LOAD DATA INFILE command against a MySQL instance (only applicable to Configured Data Sources; not applicable to the Appian Cloud database) from a Query DB Node in a Process Model must set the conf.data.load.infile.paths custom property as a comma-separated list of file paths to whitelist the required directories. If the property is not set, any Process Model using this command will pause by exception at runtime. This command is generally used to periodically load data from files into the database, and so we expect that most customers will not have to take the required action described here.
AN-146029 - High
Fixed an issue that caused the username field on the Forgot Password page to be auto-capitalized.
AN-146210 - High
Saving user filters is now visible on all record types.
AN-146412 - High
Clicking on a start process link after the SAIL cache is full no longer results in a full-screen error.
AN-147053 - High
A memory leak in service manager has been resolved.
AN-145522 - Medium
A stability fix for service manager in the case of an unstable or degraded zookeeper cluster.
AN-145736 - Medium
The service manager process is now more robust to leadership changes during the startup process.
AN-146140 - Medium
An error retrieving document statistics on highly-available installations has been resolved.
AN-145712 - Medium
Fixed an issue with the Dynamics connected system that prevented creating or updating entity records with lookup fields.
AN-147070 - Medium
Fixed an issue that prevented failed Health Check runs from being properly recorded.
AN-147232 - Medium
Reduces the number of messages broadcast between app servers, resulting in a performance improvement in the engines.
AN-141142 - Low
The service manager process is now robust to multiple copies of the same engine running when only one is configured.
AN-146167 - Low
Fixed an issue where engine_disk_usage.csv was not logging accurate values for some directories
AN-146705 - Low
Fixed an issue causing Search Server to break a site that is low on disk space
Security Updates - Critical
AN-144440 - High
A race condition in service manager that could lead to site unavailability has been resolved.
AN-139947 - Medium
System memory use for Appian Cloud sites has been reduced.
AN-144781 - Low
The accent color is now correctly applied to all links in Tempo.
AN-145596 - Low
Stability improvement for service manager component.
Perform the following steps to apply the hotfix:
<APPIAN_HOME>/deployment/web.warto the folder where the Web server is getting the static resources. See Copy Static Resources to the Web Server for more information.
To determine if Appian 19.4 Hotfix Package B is deployed, open the build.info file located in
<APPIAN_HOME>/conf/. The contents of this file should match the following code sample: