The following hotfix is available for Appian 21.4.

If you have a self-managed installation, you can view your current Appian version by logging into your Appian environment as a designer or system administrator and clicking the navigation menu > About Appian

This is a cumulative hotfix that includes all resolved issues listed below in a single download and set of instructions. This hotfix is required for any Appian 21.4 installations not currently up to date with the latest hotfixes. After installing, you will be running on Appian 21.4.855.0.

21.4.855.0 Hotfix

See the Installation section at the bottom of this page for instructions on how to install this hotfix.

If you are managing Appian on Kubernetes, instead of using the link above, you'll need to upgrade to the latest Appian images to apply the Hotfixes. You can do so by following the instructions on Upgrading Appian on Kubernetes.

Resolved issues


  • Security Updates - Critical

  • AN-205738 - High
    Sites using Appian-hosted MySQL database are upgraded to release 5.7.38, which includes security and bug fixes. Details are available on the MySQL website (

  • AN-204464 - Medium
    Fixed an issue that caused an unexpected dirty flag to appear in the start form of certain process models when selecting the "Skip to main content" link in the URL bar from the start form.

  • AN-203594 - Low
    Improvements to reduce installation time of phpmyadmin.

  • AN-204739 - Low
    The performance of casts with record data types that occur automatically (such as passing a custom data type to a record data type rule input or vice versa) has been improved.


  • Security Updates - High

  • AN-206501 - High
    Fixed an issue where a single Kafka broker could lead to an outage until all the Kafka brokers are online.

  • AN-204239 - Medium
    Made improvements to reduce the likelihood of timeouts when loading the Rule Performance view.

  • AN-206663 - Low
    Fixed issue where "Expected dialog to exist for id" error displayed in the compare and deploy wizard when one of the scripts is modified while viewing the compare and deploy script list.

  • AN-207045 - Low
    Fixed an issue that caused a!isUserMemberOfGroup to return an error when executed on an inactive user.


  • Security Updates - High

  • AN-195551 - High
    All MariaDB instances in Appian Cloud have been upgraded from version 10.5.15 to 10.6.7 for all Appian versions from 20.3 through 22.3. The upgrade includes the following MariaDB patches:- 10.6.0- 10.6.1- 10.6.2- 10.6.3- 10.6.4- 10.6.5- 10.6.6- 10.6.7Details about the content of each of these patches are available on the MariaDB Release Notes page:

  • AN-206219 - Medium
    Fixed an issue on FedRAMP cloud sites that allowed the enable_native_doc_service custom property to be set to true using an import customization file.


  • Security Updates - High

  • AN-206020 - High
    Fixed issue where a system error was displayed when selecting a table during configuration of a synced record type. This error occurred when the data source had multiple database tables with the same name in different schemas.

  • AN-123425 - Medium
    For Appian Cloud customers, the sail_state_cache table in Appian data source is now truncated during site startup to preserve disk space.

  • AN-199194 - Medium
    Fixed an issue where the visibility of a record action used in a record grid column did not re-evaluate after the data was updated through a record action.

  • AN-190652 - Low
    Removal of Appian Configuration JMX object.

  • AN-191817 - Low
    The elastic search property "index.max_terms_count" is now persisted to maintain custom configuration during site restart.


  • Security Updates - High

  • AN-206531 - High
    Customer will be provided the fix during a hotfix cycle

  • AN-186797 - Low
    The max_active property for both the Appian and AppianAnywhere data sources is now configurable with default value of 100.

  • AN-200469 - Low
    Service Manager will automatically restart after an unexpected outage.


  • Security Updates - High

  • AN-200822 - Critical
    Fixed an issue that prevented self-managed customers from specifying a non-default location for process notes.

  • AN-205342 - Critical
    Customers using a database other than MariaDB on versions 21.3 and below will now be able to successfully upgrade to 21.4 and above. This fix also fixed an issue in which synced records could no longer be synced successfully on databases other than MariaDB.

  • AN-202632 - High
    Fixed an issue that prevented certain functions from being properly evaluated when used as an input parameter in a process model.

  • AN-204251 - Medium
    Fixed issue with ZooKeeper writing to its log directory when upgraded to version 3.8.0.

  • AN-204952 - Medium
    Fixes a bug that addresses bindings of system rule wrappers

  • AN-205231 - Medium
    Fixed an issue that prevented user from switching between published and draft versions of Data Store Object in Appian Designer.

  • AN-205123 - Low
    Resolved an issue with routing http traffic.


  • Security Updates - High

  • AN-200096 - High
    Process deletion is now optimized to consume less memory.

  • AN-202158 - Medium
    Fixed an issue that prevented some task viewers to be able to successfully open links in the task interface when they had not accepted the task.

  • AN-202500 - Medium
    Fixed an issue that caused Health Check Data Collection to fail due to the presence of tar.gz files.

  • AN-202514 - Medium
    Added log messages for the creation of certificates for connected environments and OAuth tokens to provide the full lifecycle of these certificates.

  • AN-202926 - Medium
    Fixed issue where a record type incorrectly showed fields from multiple tables if the only difference in table names is that one table name used either the "%" or the "_" wildcard characters. For example: "abc_table" and "abcdtable", "abc%j and "abcdefgj.

  • AN-202989 - Medium
    Fixed an issue in Generate Record Action where users could attempt to generate an action with a data store in an unverified state, resulting in an error.

  • AN-204219 - Medium
    Fixed an issue where the link to the post-deployment process results did not show in the summary view of a deployment.

  • AN-204344 - Medium
    The a!queryRecordType() function now evaluates in parallel.

  • AN-201723 - Low
    Fixed an issue in Generate Record Action where configuring a data store could result in an error.

  • AN-202310 - Low
    Upgraded phpMyAdmin to 5.1.3

  • AN-203091 - Low
    Fixed the status scripts reporting of topic replication lag in instances where MirrorMaker was inactive or failed to start.


  • Security Updates - Critical

  • AN-202684 - High
    Querying process history now consumes less memory especially for long running process instances.

  • AN-203053 - High
    Fixed an issue that caused performance degradation when a user belonging to a high number SAML groups logs in to Appian.

  • AN-203143 - High
    Process history is now displayed correctly in the Process Modeler. Prior to this fix, incomplete process history would be displayed in the modeler while monitoring a process.

  • AN-190032 - Medium
    Fixed an issue that caused some documents to be rendered as blank when used in the Reconcile Doc Extraction smart service.

  • AN-200300 - Medium
    Appian Cloud database has been upgraded to MariaDB 10.5.15.

  • AN-200374 - Medium
    Fixed an issue with exporting a Read-Only Grid in cases where an included Link Component is missing a valid link.

  • AN-201984 - Medium
    Fixed an issue that caused process variables of type 'User' to be automatically assigned an incorrect default value even though there is no default value configured for the variable.

  • AN-203263 - Medium
    Fixed an issue that prevented process metrics functions from appearing in the suggested functions menu of the expression editor when opened using the Process Instances dialog.

  • AN-200273 - Low
    Fixed an issue in determining Kafka replication factors that could lead to HA failure during periods of Kafka instability.

  • AN-201791 - Low
    The MirrorMaker startup script has been updated to include additional logging and health checks for Kafka.

  • AN-202936 - Low
    Security Improvement


  • Security Updates - High

  • AN-200267 - High
    Fixed an issue during site shutdown that could result in incomplete engine checkpoints.


  • Security Updates - Critical

  • AN-198855 - High
    Fixed an issue in an internal migration of process history which caused the process execution engine to rollback due to an incorrect and unexpected null value.

  • AN-199186 - High
    Redis deployment upgrade.

  • AN-201645 - High
    Fixed an issue that prevented site shutdown when encountering an engine responsiveness service failure.

  • AN-201743 - High
    Fixed an issue that contributed to browser slowness when opening Decision Designer containing large numbers of cells.

  • AN-202033 - High
    Process executions no longer fail due to unexpected process errors. This fixes an issue caused by AN-196802 where a process would be unexpectedly paused by exception when running on an engine it wasn't published on.

  • AN-202169 - High
    Fixed an issue where an error message displayed when a!queryRecordType() was used within one of the following looping functions: all, any, apply, filter, merge, none, reduce, or reject.

  • AN-202296 - High
    Updated the image.

  • AN-198343 - Medium
    Fixed an issue where user filters configured via a local variable were not persisting as expected.

  • AN-199489 - Medium
    The performance of casting from a list of custom data types to record data types has been improved.

  • AN-201976 - Medium
    Fixed an issue where record action components in a menu layout were incorrectly refreshing.

  • AN-198376 - Low
    Fixed an issue which, in rare scenarios after an upgrade, caused an error upon editing a record list interface or viewing record list performance in the Appian Designer.

  • AN-201263 - Low
    Data sources created in the admin console and connected systems now have a default validation query timeout of 5 seconds.


  • AN-201182 - Critical
    Fixed an issue where applications with a large number of objects in them caused performance issues.

  • AN-200881 - High
    Fixed an issue where an error message displayed when a!queryRecordType() was used within one of the following looping functions: all, any, apply, filter, merge, none, reduce, or reject.


  • Security Updates - Critical

  • AN-200851 - Medium
    Custom data type field names are now visible in expression autosuggest for variables and rule inputs with long names.

  • AN-201252 - Medium
    Fixed an issue that caused an error to appear when a user viewed a record view from the User record type that had not been updated.

  • AN-201308 - Medium
    Security Improvement


  • Security Updates - Critical

  • AN-201190 - Critical
    Updated Debian-CIS baseline image to address Kafka container vulnerabilities.

  • AN-200235 - Medium
    Fixed an issue where changes to expressions in the process modeler were not saved if the Expression Editor was closed quickly after the change.

  • AN-201123 - Medium
    Resolved an issue that caused Task Report query results to be different from the Task Report object when paging info is defined.

  • AN-201180 - Medium
    Fixed an issue that caused that caused performance degradation with the Email Poller when using IMAPS protocol.

  • AN-199887 - Low
    Fixed a memory management issue that may lead to unresponsive sites and full site outages.


  • Security Updates - Critical

  • AN-201191 - Critical
    Updated Debian-CIS baseline image to address Service Manager container vulnerabilities.

  • AN-201193 - Critical
    Updated Debian-CIS baseline image to address ZooKeeper container vulnerabilities.

  • AN-200233 - High
    Fixed an issue that caused the isusermemberofgroup() function to throw an expression evaluation error for some customers after upgrading to Appian 21.3.

  • AN-200543 - High
    Fixed an issue that could result in Appian Data Service not being available in case of a disk failure.

  • AN-200841 - High
    Indirect members are now displayed correctly while viewing the list of members of a group in Appian Designer.

  • AN-200966 - High
    Fixed an issue that slowed imports of large applications.

  • AN-200049 - Medium
    Searching for Appian documents and folders using IDs or UUIDs is now faster and more efficient. Prior to this fix, searching for these objects could cause high load on the content engines resulting in slowness across the environment.

  • AN-200969 - Medium
    Fixed an issue with the Service Manager startup sequence that could result in silent startup failures.


  • Security Updates - Critical

  • AN-196598 - High
    Queries are now correctly refreshing after completion of a record action. This updates behavior to be consistent with Appian 21.3 and earlier.

  • AN-200147 - High
    Contextual related action modals now close only once the parent UI has finished evaluating.

  • AN-200219 - High
    Fixed an issue to prevent inappropriate values from being stored for process history location.

  • AN-198908 - Medium
    Enhanced the process model history API to allow filtering by process id for process mining.

  • AN-200034 - Medium
    The load performance of complex record list and record view expressions has been improved.

  • AN-200145 - Medium
    Data is now correctly refreshed immediately after the completion of a formless record action.

  • AN-200261 - Medium
    Improved performance of user and group picker suggestions when a group filter is supplied.

  • AN-200132 - Low
    Enhanced the process history APIs to improve mining of process data in Appian.


  • Security Updates - High

  • AN-199158 - High
    Added an optimization to process model validation that speeds up previously slow deployments for certain process models.

  • AN-200038 - Medium
    Fixed an issue in document extraction that occasionally caused fields in fillable PDFs to be extracted to the incorrect fields in the Appian data type.

  • AN-200190 - Low
    Host networking removal for the Web Application Server.


  • Security Updates - Medium

  • AN-199620 - Critical
    Fixed an issue that resulted in browser slowness when rendering Editable Grid Components containing very large numbers of cells. This fix also addresses the UI slowness observed in Decision Designer, since it relies on the Editable Grid Component.

  • AN-199704 - High
    Fixed an issue where some Appian customers were experiencing increased memory usage as a result of recent optimization efforts.

  • AN-196761 - Medium
    You can now configure a refresh interval for a record list.The refresh interval is how often you want the record list to refresh its data automatically.

  • AN-198208 - Medium
    Fixed an issue that caused some customers to experience occasional failures when using the SAP Connector plugin.


  • Security Updates - Medium

  • AN-198140 - Medium
    Fixed a padding issue that affected Quick Task objects


  • Security Updates - Critical

  • AN-198588 - Critical
    Fixed an issue that could result in a long-running or failed upgrade for some customers.

  • AN-198268 - High
    Fixed an issue that prevented some customers from being able to connect the Mail Poller to POP3 email servers when using TLS 1.2.

  • AN-191995 - Medium
    Process history kafka logs now occupy less disk space. Prior to this fix, redundant logs for deleted processes would not be deleted causing unnecessary disk space to build up.

  • AN-196308 - Medium
    Fixed an issue that prevented export record grid to Excel from working when the record list was used in a site.

  • AN-197367 - Medium
    Fixed an issue where system administrator accounts did not see the correct security groups pre-populated in the object list for Generate Record Actions.

  • AN-198505 - Medium
    Fixed an edge case scenario that resulted in some queried values from ADS being incorrectly returned as all lowercase.

  • AN-195192 - Low
    Fixed an issue that caused 'DML- MISSING' errors to be displayed in the log files when a user is created on the site.

  • AN-198095 - Low
    Fixed an edge case scenario that resulted in some queries from ADS being sorted by case-folded values rather than the stored values.

  • AN-198564 - Low
    About Appian modal no longer errors out when RPA is not enabled on the site

  • AN-198593 - Low
    Record syncs now have the correct timeout limit on import. This updates behavior to be consistent with Appian 21.2 and earlier.


  • AN-198249 - Critical
    Fixed an issue that prevented process instances from starting after upgrade for some self-managed customers.

  • AN-192235 - Medium
    Fixed an issue where external deployments to environments with governance enabled did not send emails for deployments without descriptions.

  • AN-197548 - Medium
    Fixed an issue that prevented the application server from starting due to NULL usernames being added to the database.

  • AN-197919 - Medium
    Fixed an issue with Read-Only Grids sourced from records data that resulted in an error when Disable Row Selection parameter is enabled and the result set is empty.

  • AN-198386 - Medium
    Fixed an issue that caused an error when displaying lists whose type can change

  • AN-194813 - Low
    Fixed an issue where Application Prefixes would not auto-populate on Integration objects when the Integration was created during the creation of a Connected System.


  • Security Updates - Critical

  • AN-198124 - Critical
    Fixed an issue that could result in a long-running or failed upgrade for some customers.

  • AN-197578 - High
    Starting a process using the Start Process Smart Service no longer causes high java queue utilization. Prior to this fix, using the smart service to start a process on Appian 21.4 would cause work items to be stuck on the java queue causing the site to be unusable in some cases.

  • AN-194740 - Medium
    Appian Cloud database has been upgraded to MariaDB 10.5.13.

  • AN-195741 - Medium
    Fixed an issue in packages where the Manage Scripts dialog could incorrectly alert about concurrent script editing.

  • AN-196611 - Medium
    Fixed an issue with updating the field selected for the Record Header Title.

  • AN-197142 - Medium
    Fixed an issue with process modeler where Japanese characters were cut off in node labels.

  • AN-197534 - Medium
    The Interface Details (sail-details.csv) performance log file now includes process model and task identifiers when relevant.

  • AN-187001 - Low
    Interface previews in Appian Designer are now wider to reduce wrapping of contents.


  • Security Updates - Low

  • AN-192765 - High
    Fixed an issue that caused an error when opening a record view for any record configured with a default filter expression which used the isusermemberofgroup function.

  • AN-195479 - High
    Fixed intermittent site performance degradations occurring while users filled out the Return to Work Questionnaire.

  • AN-196802 - Medium
    Fixed an issue that caused the process execution engine to rollback when the process model has been created with an invalid node connection. Such processes will now result in a process execution error.

  • AN-194341 - Low
    Fixed an issue where user filters selections applied incorrectly after a user completed a record action that changed the user filter options and clicked the refresh button on a grid that uses a record type as the source.

  • AN-197135 - Low
    Fixed an issue with character encodings on some error pages that resulted in unreadable error message text.


  • Security Updates - Critical

  • AN-196715 - High
    Fixed an issue that prevented importing certain process models when they used a variable with the same name as a previously deleted constant in the system.

  • AN-195700 - Medium
    Fixed an issue where packaged datatypes and application configurations were unable to be successfully deployed together.

  • AN-196697 - Medium
    Fixed an issue that allowed malformed SOAP requests due to null pointer exception when Type Value was not set.

  • AN-196718 - Medium
    Fixed an issue in document extraction logic that caused key-value pairs and checkboxes with repeated labels to be extracted to incorrect data type fields.

  • AN-160867 - Low
    Fixed an issue with the allSites REST endpoint that included sites inaccessible by the user in the list of available sites.


  • AN-195056 - High
    After exporting a record list to Excel, clicking the link on a record instance now works correctly instead of throwing an error.

  • AN-196059 - Medium
    Increased the API key limit from 100 to 250 API keys per environment.

  • AN-196532 - Low
    To improve analysis performance, Health Check now only collects engine logs from the previous 7 days.

  • Security Updates - Critical

  • AN-196371 - Critical
    Security Improvement

  • AN-195177 - Medium
    For the Appian Cloud database, the 'innodb_change_buffering' variable has been set to the 'none". This prevents a related MariaDB bug from causing issues during database restarts.

  • AN-194843 - Low
    Fixed an issue with phpMyAdmin with networking.

  • Security Updates - High

  • AN-195762 - High
    The gallery view for a!imageField now properly supports right-to-left languages.

  • AN-194633 - Medium
    Process history migration calculation is now significantly faster. Prior to this fix, the process would cause excessive memory .l files due to severely high memory utilization.

  • AN-195072 - Medium
    Text Functions in SAIL expressions now handle Turkish unicode characters consistently.

  • Security Updates - Medium

  • AN-194123 - High
    Fixed an issue so that there is no longer an error message on the Record Summary View when there is no interface created for the Record Type.

  • AN-194904 - High
    Improved performance on startup when using a large number of record types with data sync enabled.

  • AN-194983 - High
    The isUserMemberOfGroups function is now more efficient for large inputs to the 'groups' parameter.

  • AN-195216 - High
    Fixed a performance issue by eliminating redundant cache clears in the application server. Prior to this change these redundant cache clear calls could result in overall slowness in the environment if triggered at high volume.

  • AN-195415 - High
    Fixed an issue where an erroneous design error would rapidly print to the logs.

  • AN-193631 - Medium
    Fixed an edge case that resulted in failed data updates for unique attributes.

  • AN-194433 - Medium
    Fixed an issue where integrations that use the Microsoft Dynamics 365 connected system type were incorrectly marking fields as required.

  • AN-195489 - Medium
    An incorrect error description has been fixed when an immediate sync and a manual or schedule sync occur concurrently.

  • AN-195529 - Medium
    Fixed an issue where configuring one-to-many related record fields as custom search fields for record types did not function correctly.

  • AN-192634 - Low
    Record data types and map data types can now be saved into a process variable of type CDT. Prior to this fix, trying to save these data types into a process variable would cause an error.

  • AN-195145 - Low
    The process calendar now works as expected when the locale of the site or the user is set to Japanese.

  • AN-194786 - High
    Fixed a performance issue with plug-ins that access data sources.

  • AN-194869 - Medium
    For Appian Cloud environments on MariaDB, Database Administrators can now edit any stored routines in phpMyAdmin, irrespective of the definer of the routine.

  • AN-194870 - Medium
    For Appian Cloud sites, when the database is exported using phpMyAdmin, the definer clause is now removed from the exported SQL script.

  • AN-190374 - Low
    An immediate sync that writes to one or more tables used as the source for multiple record types will no longer invalidate all the record types if one of them was previously invalidated by a sync.

  • AN-192538 - High
    Fixed an issue where isUserMemberOfGroup functions within process models were not evolved on upgrade from 20.3.

  • AN-195086 - High
    Resolved an issue caused when Identity Provider (IdP) initiated SAML.

  • AN-191524 - Medium
    Fixed an issue in a migration for null users without uuids that caused the application server deployment to fail.

  • AN-193000 - Medium
    Task report query results no longer display null values for a valid field when the sort filter is set to that field.

  • AN-193698 - Medium
    When a designer navigates to a record summary view, we correctly show the VSO highlight

  • AN-194536 - Medium
    Process deletion is now more efficient. Prior to this fix, deletion of multiple processes at the same time would cause very high CPU utilization.

  • AN-194543 - Medium
    Process Activity tab under Monitoring View will now continue to display processes even though only one of the process engines is down. Prior to this fix, this tab would not show any results under such scenario. The process activity grid will still fail to display the processes running on the execution engine which is down.

  • AN-194787 - Medium
    Fixed an issue where sites rendered user input tasks with incorrect padding for users in the Designer Role.

  • AN-186117 - Low
    Improved descriptions in logging for record sync error codes to help troubleshoot sync errors.

  • AN-194712 - Low
    Addressed an issue with Redisson unable to communicate with Redis.

  • AN-191748 - High
    Fixes an issue where a synced record type associated to a nested CDT was being written to via the Write to Data Store Entity smart service even though the parent CDT was configured using 'cascade refresh'.

  • AN-194011 - Low
    Record action dialog no longer flashes an additional blue banner before the action submits.

  • Security Updates - Critical

  • AN-191924 - High
    Processes involving users who were renamed can now be safely unarchived. Prior to this fix, unarchiving such processes would fail because of user details for null users to be inconsistent across the groups and execution engines.

  • AN-193397 - High
    Fixed an issue where opening a task form fails during a long running process

  • AN-193745 - High
    Fixed an issue that caused Process Modeler to not load when personal locale was set to Hebrew

  • AN-186767 - Medium
    Fixed an issue which prevented multiple indices from being updated at the same time in dictionaries and CDTs using a!update().

  • AN-192717 - Medium
    Fixed an issue where the packages dialog was not displaying the most recent list of available packages.

  • AN-193522 - Medium
    Fixed an issue that was preventing the correct error being logged when an immediate sync fails. Also updated logging for synced record types so a reference to the record type(s) being affected is captured in order to help with troubleshooting.

  • AN-194072 - Medium
    Addressed and issue with accessing phpMyAdmin via hyperlink. 

  • AN-194213 - Medium
    Fixed an issue which prevented the creation of Web Content Channels in /apps

  • AN-191433 - Low
    Adds memory guardrail

  • AN-191807 - Low
    For the Appian Cloud database, the value of innodb_log_file_size and innodb_log_buffer_size variables is now set based on the total server memory.

  • AN-193802 - Low
    Fixed an issue that caused false errors related to shared-logs to appear on Appian sites with a single node.

  • AN-193973 - Low
    Improved error messaging details for BundleUtils.

  • AN-193979 - Low
    Improved decryption exception logging for better problem analysis and diagnosis.

  • Security Updates - Low

  • AN-193232 - High
    Bug Fix

  • AN-193804 - Medium
    Archived Processes with deleted Process Models can now be deleted successfully.

  • AN-190523 - High
    Process history kafka logs now occupy less disk space.

  • AN-185792 - Medium
    Appian Document Extraction is now automatically enabled on all SOC2-only sites.

  • AN-192198 - Medium
    Record Types that are not displayed in Tempo now are successfully included in Health Check

  • AN-192317 - Medium
    Fixed an issue where modifying a data range user filter on one grid would affect another grid when two or more grids with date range user filters display on the same page.

  • AN-190753 - Low
    Fixed an issue with the Records-Powered Grid and Record List so that when a search returns zero results, it now only queries once instead of twice.

  • Security Updates - Medium

  • AN-186940 - High
    For Appian Cloud database, fixed an issue with database start up from a snapshot.

  • AN-191402 - High
    Fixed a memory utilization issue with data stores that contain a custom data type with multiple fields mapped to the same column in the database.

  • AN-191646 - High
    Fixed an issue which prevented updating custom data types with parent-child relationships due to an error on locked types clean up which caused the types to stay locked longer than expected.

  • AN-192355 - High
    For Appian Cloud customers on MySQL database, fixed an issue that prevented external data sources from initializing.

  • AN-187894 - Medium
    Fixed an issue where some rules were not identified correctly by impact analysis.

  • AN-189035 - Medium
    On Appian Cloud MariaDB database, the optimizer_switch variable has been updated to disable derived_merge option.

  • AN-190893 - Medium
    For Appian Cloud MariaDB database, guardrail has been introduced to prevent a single query from using a large amount of temporary disk space. tmp_disk_table_size global variable has been set to 10G by default.

  • AN-191419 - Medium
    Fixed an issue where design guidance impacted system performance

  • AN-191611 - Medium
    Fixed an issue which sometimes caused a low-priority error message to be printed repeatedly in the application server log.

  • AN-191925 - Medium
    Fixed an issue that caused user details for null users to be inconsistent across the groups and execution engines.

  • AN-191934 - Medium
    Fixed an issue in generating a record action where the name of the generated constant object could conflict with a pre-existing constant if the pre-existing constant's name contained lowercase letters.

  • AN-192025 - Medium
    Generating a record action no longer configures the generated Users group object as an administrator of itself.

  • AN-192418 - Medium
    Fixed an issue in generation of record actions where the name of the generated data store constant could conflict with an existing constant if the existing constant included lowercase characters.

  • AN-186217 - Low
    For Appian Cloud database in high availability configuration, additional logging has been introduced to capture information during a database failover.

  • AN-188390 - Low
    Custom fields within a record type now work without an error when the custom field references a source field of type float.

  • AN-190553 - Low
    Fixed an issue where empty table header cells were not being mapped to the proper CDT field in document extraction.

  • AN-191081 - Low
    Fixed an issue that caused styling issues in Tempo when using Hebrew language.

  • AN-192029 - Low
    Record views using rv!record no longer error when referencing relationships where the logged in user does not have access to the related record type.


Perform the following steps to apply the hotfix:

  1. Stop Appian. See Starting and Stopping Appian for detailed instructions:
    1. Shut down the application server.
    2. Shut down the search server.
    3. Shut down the data server.
    4. Shutdown all Appian Engines, ensuring that the engines are checkpointed upon shutdown.
  2. Back up your existing Appian instance. See Backing Up Your Existing Appian Instance for instructions.
  3. Unzip the contents of the archive into your <APPIAN_HOME> directory.
  4. Run the deleteFiles script (deleteFiles.bat on Windows, on Linux) that is now located in your <APPIAN_HOME> directory.
    • If the script reports that some files were not deleted, address the reason for the failure (common causes listed below), and run it again until it no longer reports failed deletions.
    • Common causes of failed file deletion include:
    • The file is open in another window or process
    • The file is locked
    • You do not have permission to delete the file
  5. Unzip the contents of the archive that is now located your <APPIAN_HOME> directory.
  6. Run the installJdk script (installJdk.bat on Windows, on Linux).
  7. If you maintain customized or overridden Spring Security .xml files, merge them with the associated base files in the /deployment/web.war/WEB-INF/conf/security/ directory.
  8. Delete the deleteFiles scripts, the installJdk scripts, the OpenJDK .tar.gz and .zip files, and
  9. If you are using a Web server, copy the content of <APPIAN_HOME>/deployment/web.war to the folder where the Web server is getting the static resources. See Copy Static Resources to the Web Server for more information.
  10. Run the configure script to deploy your environment's configuration and re-configure any node names previously set by the configure script tools.
  11. Start Appian:
    1. Start the Appian Engines.
    2. Start the data server.
    3. Start the search server.
    4. Start the application server.

To determine if the Appian 21.4 Hotfix is deployed, open the file located in <APPIAN_HOME>/conf/. The contents of this file should match the following code sample:

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