Upgrade Hub and Interact

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Upgrading Hub and Interact is a simple process that uses dedicated tools. You need to run the upgrade tools in the following order, starting with the version you are currently using:

After you have completed the upgrade, advise your users to log into Hub and clear the cache by pressing CTRL + F5. This will refresh all web pages and ensure that any user interface changes are updated.

Upgrade Hub and Interact 4.0 to version 4.1

It is recommended that you schedule the upgrade to take place outside of working hours.

Prerequisites

  • Version 4.0 of Hub and Interact is installed.

  • Everyone is logged out of the IMS Server.

  • You have backed up all relevant databases. Although the databases are not impacted by the upgrade, it is recommended that databases are backed up before performing any upgrade.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Upgrade steps

  1. Download the Blue Prism Interact and Hub Upgrader for version 4.0 to 4.1 from the Blue Prism Portal.
  2. Run the upgrader and follow the instructions.

  3. Once the upgrader has completed, log in to Hub and open the plugin repository.

    The repository will show that there are plugins ready to update with details of the currently installed and available versions displayed.

  4. Select the All check box and click Complete updating.

    The new versions of the selected plugins are installed and the upgrade to version 4.1 is complete.

  5. Repeat the process on all machines on which Hub is installed.

Upgrade Hub and Interact 4.1 to version 4.2

It is recommended that you schedule the upgrade to take place outside of working hours.

Prerequisites

  • Version 4.1 of Hub and Interact is installed.

  • Everyone is logged out of the IMS Server.

  • You have backed up all relevant databases. Although the databases are not impacted by the upgrade, it is recommended that databases are backed up before performing any upgrade.

  • You have created DNS records for the License Manager and Notification Center to use during this upgrade. This prerequisite is not required for single machine environments.
  • SSL certificates for the new web sites; License Manager and Notification Center. See the Hub Install Guide for more information about SSL certificates.
  • You have sufficient database permissions to configure the new databases created as part of this upgrade, such as, dbcreator or sysadmin.

  • GB of free disk space on the server where Hub and/or Interact are installed – This is required for the backup that is created until the installation process is complete.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Upgrade steps

  1. Download the Blue Prism Interact and Hub Upgrader for version 4.1 to 4.2 from the Blue Prism Portal.

  2. Unzip the installer on the machine where Hub and Interact 4.1 are installed. It contains two files:

    • Blue Prism Interact and Hub Upgrader.exe – The upgrader executable.
    • BluePrismHubAndInteractUpdate4.2.bin – The binary file needed to upgrade to 4.2.

    These files must be saved in the same directory.

  3. Double-click the upgrader executable to start the upgrader wizard, and on the Welcome to the Hub and Interact Upgrader screen, click Next.
  4. On the End-User License Agreement screen, read the End-User License Agreement and, if you agree to the terms, select the check box and click Next.

  5. On the Configure License Manager SQL connection screen:
    1. Configure the settings for the License Manager database by providing the SQL Server host name or IP address, and the credentials for the account to create the database:
      • If Windows Authentication is selected, the account must have the appropriate permissions.

      • If SQL Authentication is selected, enter the username and password.

        You must ensure that your database password does not contain an equals sign (=), semi‑colon (;), or speech marks ("). These characters are not supported, and will lead to issues when trying to connect to the database.

      The database name can be left as the default value or changed as required.

    2. Click Test connection to proceed to test the SQL credentials and verify connectivity.
      A notification will display the result of the test. You will only be able to move on to the next step if the test is successful      .

    3. Click Next.

  6. On the License Manager IIS setup screen:

    1. Configure the License Manager website.

      You need to:

      • Enter a site name.

      • Enter a host name in lowercase characters – This will be used as the URL for the site. The first part of the default host name must not be changed. You can only change the .local part of the host name. Ensure that you consider your DNS and Domain structure when choosing a host name.

        The use of uppercase characters in URLs is not supported.

      • Enter the port number.
      • Select the appropriate SSL certificate.
      • Leave Start Website selected, unless you do not want the website to automatically start at the end of the installation.

    2. Click Next.

  7. On the Notification Center SQL connection screen:
    1. Configure the settings for the Notification Center database by providing the SQL Server host name or IP address, and the credentials for the account to create the database:
      • If Windows Authentication is selected, the account must have the appropriate permissions.

      • If SQL Authentication is selected, enter the username and password.

        You must ensure that your database password does not contain an equals sign (=), semi‑colon (;), or speech marks ("). These characters are not supported, and will lead to issues when trying to connect to the database.

      The database name can be left as the default value or changed as required.

    2. Click Test connection to proceed to test the SQL credentials and verify connectivity.
      A notification will display the result of the test. You will only be able to move on to the next step if the test is successful      .

    3. Click Next.

  8. On the Notification Center IIS setup screen:

    1. Configure the Notification Center website.

      You need to:

      • Enter a site name.

      • Enter a host name in lowercase characters – This will be used as the URL for the site. The first part of the default host name must not be changed. You can only change the .local part of the host name. Ensure that you consider your DNS and Domain structure when choosing a host name.

        The use of uppercase characters in URLs is not supported.

      • Enter the port number.
      • Select the appropriate SSL certificate.
      • Leave Start Website selected, unless you do not want the website to automatically start at the end of the installation.

    2. Click Next.

  9. On the Configure IADA SQL configuration screen:
    1. Configure the settings for IADA by providing the SQL Server host name or IP address, and the credentials for the account to create the database:
      • If Windows Authentication is selected, the account must have the appropriate permissions.

      • If SQL Authentication is selected, enter the username and password.

        You must ensure that your database password does not contain an equals sign (=), semi‑colon (;), or speech marks ("). These characters are not supported, and will lead to issues when trying to connect to the database.

      The database name can be left as the default value or changed as required.

    2. Click Test connection to proceed to test the SQL credentials and verify connectivity.
      A notification will display the result of the test. You will only be able to move on to the next step if the test is successful      .

    3. Click Next.
  10. On the Ready for Upgrade to 4.2 screen, click Next to upgrade Hub and Interact to 4.2.

  11. On the Completed the Blue Prism Hub and Blue Prism Interact upgrade screen:

    • When the upgrade completes successfully, click Finish.

    • If the installation failed, the View Log option will give you details of the error that was encountered. For more information, see Troubleshooting upgrades.

  12. Ensure the database permissions for the new databases are:

    Application name

    Example service account name for SQL Windows Authentication

    SQL Server permissions required during installation

    Database permissions required during application running

    Default database name

    Blue Prism - Notification Center

    IIS APPPOOL\ Blue Prism – Notification Center

    dbcreator / sysadmin

    db_datawriter / db_datareader

    NotificationCenterDB

    Blue Prism - License Manager

    IIS APPPOOL\ Blue Prism – License Manager

    dbcreator / sysadmin

    db_owner

    Or

    db_datawriter / db_datareader with execute permissions (see below)

    LicenseManagerDB

    When the application is running, the License Manager requires appropriate permissions to execute stored procedures. If you do not want to use db_owner as the permission level, you can use db_datawriter/db_datareader and run the following SQL script to provide the required level to that user:

    Copy 
    USE [LicenseManagerDB]
    GRANT EXECUTE to "IIS APPPOOL\Blue Prism - License Manager"

    Where:

    • [LicenseManagerDB] is the database name for License manager.
    • "IIS APPPOOL\Blue Prism - License Manager" is the username.

  13. If using Windows Authentication:

    1. Change the Application Pools Identity of the newly installed License Manager and Notification Center to match the Application Pools that already exist for Hub and Interact.

    2. Give the Identity, under which the IIS pools run, access to the BPC_SQL_CERTIFICATE certificate. To do this, open Manage Computer Certificates from the Windows taskbar. In the Personal folder, right-click the certificate and select All tasks > Manage Private Keys. Add the user that matches the Identity and give the user Full control.

      Access to this certificate is required by Identity running the Blue Prism – Hub and Blue Prism – IADA Application Pools.

    3. Check the file permission is set to Full Control for the service account on the new folders:
      • C:\Program Files (x86)\Blue Prism\Notification Center
      • C:\Program Files (x86)\Blue Prism\License Manager.
  14. Restart the RabbitMQ Service.
  15. Restart all Application Pools.
  16. Restart IIS.
  17. Repeat the process on all machines on which Hub is installed.

The plugins are automatically updated to the latest version as part of the upgrade process.

Upgrade Hub and Interact 4.2 to version 4.3

It is recommended that you schedule the upgrade to take place outside of working hours.

In 4.3, IMS has been replaced with Authentication Server, any new installs will create a URL, Application Pool and database name that reflect this change. Using this upgrader, only the IMS folder and site name are changed from IMS to Authentication Server, however, your Application Pool, URL and IMS database name remain unchanged. It will also rename the Blue Prism – Email Sender site to Blue Prism – Email Service, however, the address remains unchanged. It is important that everyone is logged out of the IMS Server when you perform this upgrade.

Prerequisites

  • Version 4.2 of Hub and Interact is installed.

  • Everyone is logged out of the IMS Server.

  • You have backed up all relevant databases. Although the databases are not impacted by the upgrade, it is recommended that databases are backed up before performing any upgrade.

  • Sufficient database permissions to configure the new database created as part of this upgrade, such as, dbcreator or sysadmin.

  • 2.5 GB of free disk space on the server where Hub and/or Interact are installed – This is required for the backup that is created until the installation process is complete. Remove any backups from any previous upgrades.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Upgrade steps

  1. Download the Blue Prism Interact and Hub Upgrader for version 4.2 to 4.3 from the Blue Prism Portal.

  2. Unzip the installer on the machine where Hub and Interact 4.2 are installed. It contains two files:

    • Blue Prism Interact and Hub Upgrader.exe – The upgrader executable.
    • BluePrismHubAndInteractUpdate4.3.bin – The binary file needed to upgrade to 4.3.

    These files must be saved in the same directory.

  3. Double-click the upgrader executable to start the upgrader wizard, and on the Welcome to the Hub and Interact Upgrader screen, click Next.
  4. On the End-User License Agreement screen, read the End-User License Agreement and, if you agree to the terms, select the check box and click Next.

  5. On the Configure Email Service SQL connection screen:
    1. Configure the settings for the Email Service database by providing the SQL Server host name or IP address, and the credentials for the account to create the database:
      • If Windows Authentication is selected, the account must have the appropriate permissions.

      • If SQL Authentication is selected, enter the username and password.

        You must ensure that your database password does not contain an equals sign (=), semi‑colon (;), or speech marks ("). These characters are not supported, and will lead to issues when trying to connect to the database.

      The database name can be left as the default value or changed as required.

    2. Click Test connection to proceed to test the SQL credentials and verify connectivity.
      A notification will display the result of the test. You will only be able to move on to the next step if the test is successful      .

    3. Click Next.

  6. On the Blue Prism API URL (Optional) screen:

    If required, enter the URL for the Blue Prism API. This URL is essential if you want to use the Control Room plugin. The Control Room plugin is compatible with Blue Prism 7.0 or later.

    If you decide to use the Control Room plugin and you have not entered a URL at this point, you will need to update the configuration file. For more information on how to do this, see Troubleshoot a Hub installation.

  7. On the Ready for Upgrade to 4.3 screen, click Next to upgrade Hub and Interact to 4.3.

  8. On the Completed the Blue Prism Hub and Blue Prism Interact upgrade screen:

    • When the upgrade completes successfully, click Finish.

    • If the installation failed, the View Log option will give you details of the error that was encountered. For more information, see Troubleshooting upgrades.

  9. Ensure the database permissions for the new database is:

    Application name

    Example service account name for SQL Windows Authentication

    SQL Server permissions required during installation

    Database permissions required during application running

    Default database name

    Blue Prism ‑ Email Service

    IIS APPPOOL\ Blue Prism – Email Service

    dbcreator / sysadmin

    db_datawriter / db_datareader

    EmailServiceDB
  10. Restart the RabbitMQ Service.
  11. Restart all Application Pools.
  12. Restart IIS.
  13. Repeat the process on all machines on which Hub is installed.

The plugins are automatically updated to the latest version as part of the upgrade process.

Upgrade Hub and Interact 4.3 to version 4.4

For new installations of 4.4, the Cache database is no longer used and there is now a File Service database to store files, rather than storing files within a folder. For upgrades, these changes are not applied and this functionality remains as it was.

It is recommended that you schedule the upgrade to take place outside of working hours.

Prerequisites

  • Version 4.3 of Hub and Interact is installed.

  • Everyone is logged out of Authentication Server.

  • You have backed up all relevant databases. Although the databases are not impacted by the upgrade, it is recommended that databases are backed up before performing any upgrade.

  • Sufficient database permissions to configure the new database created as part of this upgrade, such as, dbcreator or sysadmin.

  • 2.5 GB of free disk space on the server where Hub and/or Interact are installed – This is required for the backup that is created until the installation process is complete. Remove any backups from any previous upgrades.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Upgrade steps

  1. Hub 4.4 requires version 3.1.11 of the .NET Framework. If you do not have this version, you will need to update your Hub web server.

    Step

    Details

    Video

    1

    Download the following components and store them in a temporary location, for example, C:\temp:

    2

    To install the .NET dependencies, run each of the following commands using the PowerShell command prompt, waiting until each completes, before running the next command:

    Copy 
    start-process "C:\temp\dotnet-hosting-3.1.11-win.exe" /q -wait
    start-process "C:\temp\windowsdesktop-runtime-3.1.11-win-x64.exe" /q -wait

    Ensure the file path matches the location where the files were stored in step 1.

    To watch this installation step, see our .NET installation video.

  2. Download the Blue Prism Interact and Hub Upgrader for version 4.3 to 4.4 from the Blue Prism Portal.

  3. Unzip the installer on the machine where Hub and Interact 4.3 are installed. It contains two files:

    • Blue Prism Interact and Hub Upgrader.exe – The upgrader executable.
    • BluePrismHubAndInteractUpdate4.4.bin – The binary file needed to upgrade to 4.4.

    These files must be saved in the same directory.

  4. Double-click the upgrader executable to start the upgrader wizard, and on the Welcome to the Hub and Interact Upgrader screen, click Next.

    If you have not installed .NET Framework 3.1.11 or later, the Prerequisites screen displays and you will need to exit the installer and update the .NET Framework.

  5. On the End-User License Agreement screen, read the End-User License Agreement and, if you agree to the terms, select the check box and click Next.
  6. On the Ready for Upgrade to 4.4 screen, click Next to upgrade Hub and Interact to 4.4.

  7. On the Completed the Blue Prism Hub and Blue Prism Interact upgrade screen:

    • When the upgrade completes successfully, click Finish.

    • If the installation failed, the View Log option will give you details of the error that was encountered. For more information, see Troubleshooting upgrades.

  8. Restart the RabbitMQ Service.
  9. Restart all Application Pools.
  10. Restart IIS.
  11. Repeat the process on all machines on which Hub is installed.

The plugins are automatically updated to the latest version as part of the upgrade process.

Upgrade Hub and Interact 4.4 to version 4.5

It is recommended that you schedule the upgrade to take place outside of working hours.

Prerequisites

  • Version 4.4 of Hub and/or Interact is installed.

  • Everyone is logged out of Authentication Server.

  • You have backed up all relevant databases. Although the databases are not impacted by the upgrade, it is recommended that databases are backed up before performing any upgrade.

  • Sufficient database permissions to configure the new database created as part of this upgrade, such as, dbcreator or sysadmin.

  • 2.5 GB of free disk space on the server where Hub and/or Interact are installed – This is required for the backup that is created until the installation process is complete. Remove any backups from any previous upgrades.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Additional prerequisites for Blue Prism Decision

Blue Prism® Decision is a new optional license-controlled plugin that is available in Hub 4.5. If your organization wants to use Decision, the following additional prerequisites are required before you run the upgrader:

  • You will need an SSL certificate for the new Blue Prism Decision Model Service container.
  • You will need to install the Blue Prism Decision Model Service container used by Decision.

For more information, see Installing Blue Prism Decision.

The URL and SSL certificate details need to be entered in the Blue Prism Interact and Hub Upgrader, see step 5 below.

Upgrade steps

  1. Download the Blue Prism Interact and Hub Upgrader for version 4.4 to 4.5 from the Blue Prism Portal.

  2. Unzip the installer on the machine where Hub and Interact 4.4 are installed. It contains two files:

    • Blue Prism Interact and Hub Upgrader.exe – The upgrader executable.
    • BluePrismHubAndInteractUpdate4.5.bin – The binary file needed to upgrade to 4.5.

    These files must be saved in the same directory.

  3. Double-click the upgrader executable to start the upgrader wizard, and on the Welcome to the Hub and Interact Upgrader screen, click Next.

    The Welcome to the Hub and Interact Upgrader screen enables you to run the upgrader in any of the Blue Prism supported languages. If required, select another language for the upgrader from the drop-down list. The default language is English (United States).

  4. On the End-User License Agreement screen, read the End-User License Agreement and if you agree to the terms, select the check box and click Next.

  5. On the Blue Prism Decision Setup (Optional) screen, if you want to use Decision, complete the following information:

    This step is only required if you are going to use Blue Prism Decision. Otherwise, click Skip to jump to step 7.

    1. Enter the URL for the Blue Prism Decision Model Service container followed by the port number. The URL should be in the format https://<FQDN>:<port number>, for example, https://decision.blueprism.com:50051.

      The URL must match the FQDN that was specified in the certificate. The port number must match the port that was defined when the container was set to run. For more information, see Installing Blue Prism Decision.

    2. Select the appropriate SSL Certificate.

    3. Click Next.

  6. On the Configure Blue Prism Decision SQL connection screen:
    1. Configure the settings for the Blue Prism Decision database by providing the SQL Server host name or IP address, and the credentials for the account to create the database:
      • If Windows Authentication is selected, the account must have the appropriate permissions.

      • If SQL Authentication is selected, enter the username and password.

        You must ensure that your database password does not contain an equals sign (=), semi‑colon (;), or speech marks ("). These characters are not supported, and will lead to issues when trying to connect to the database.

      The database name can be left as the default value or changed as required.

    2. Click Test connection to proceed to test the SQL credentials and verify connectivity.
      A notification will display the result of the test. You will only be able to move on to the next step if the test is successful      .

    3. Click Next.
  7. On the Ready for Upgrade to 4.5 screen, click Next to upgrade Hub and Interact to 4.5.

  8. On the Completed the Blue Prism Hub and Blue Prism Interact upgrade screen:

    • When the upgrade completes successfully, click Finish.

    • If the installation failed, the View Log option will give you details of the error that was encountered. For more information, see Troubleshooting upgrades.

  9. Restart the RabbitMQ Service.
  10. Restart all Application Pools.
  11. Restart IIS.
  12. Repeat the process on all machines on which Hub is installed.

The plugins are automatically updated to the latest version as part of the upgrade process.

Upgrade Hub and Interact 4.5 to version 4.6

As part of this upgrade:

  • The Windows Authentication feature is installed in IIS and applied to the Authentication Server website.
  • New queues are created in RabbitMQ – you will need to manually remove the old queues.

  • The Blue Prism API URL is removed from the web server configuration file – this prevents Control Room from being able to communicate with Blue Prism. To continue using Control Room, you will need to re-enter this URL by logging into Hub as an administrator and entering the URL in the API configuration section on the Environment management page.

    You must enter the full URL including the protocol, such as, http:// or https://. For example: https://bpapi.yourdomain.com

It is recommended that you schedule the upgrade to take place outside of working hours.

Prerequisites

  • Version 4.5 of Hub and/or Interact is installed.

  • Everyone is logged out of Authentication Server.

  • The user account performing the upgrade has sysadmin level access to the databases.

  • You have backed up all relevant databases.

  • 2.5 GB of free disk space on the server where Hub and/or Interact are installed – This is required for the backup that is created until the installation process is complete. Remove any backups from any previous upgrades.

The upgrader automatically stops any running websites as part of the upgrade process. You do not need to manually stop them.

Upgrade steps

  1. Stop all the Application Pools for the Hub and Interact sites.

  2. Stop the following three Windows services on the web server:

    • Blue Prism - Audit Service Listener
    • Blue Prism - Log Service
    • Blue Prism - Submit Form Manager

  3. Open RabbitMQ and delete all the queues that start with the following:

    • BPC.*
    • Connect.*
    • ImsServer.*
    • Interact.*

    Alternatively, you can use the following PowerShell script to carry out this step. You must run this script on the server hosting RabbitMQ, and replace the folder path in the first line of the code with the path to the sbin folder for your implementation.

    Copy 
    $rmqsbindir = "C:\Program Files\RabbitMQ Server\rabbitmq_server-3.8.17\sbin"
    set-location $rmqsbindir
    $queues = ./rabbitmqctl list_queues
    foreach ($queue IN $queues)
        {
        $queuenozero = $queue.TrimEnd("0"," ")
        $queuetrimmed = $queuenozero.TrimEnd()
        if ($queuetrimmed -like 'BPC.*' -or $queuetrimmed -like 'Connect.*' -or $queuetrimmed -like 'ImsServer.*' -or $queuetrimmed -like 'Interact.*')
            {
            ./rabbitmqctl delete_queue $queuetrimmed
            }
        }
  4. Download the Blue Prism Interact and Hub Upgrader for version 4.5 to 4.6 from the Blue Prism Portal.

  5. Unzip the installer on the machine where Hub and Interact 4.5 are installed. It contains two files:

    • Blue Prism Interact and Hub Upgrader.exe – The upgrader executable.
    • BluePrismHubAndInteractUpdate4.6.bin – The binary file needed to upgrade to 4.6.

    These files must be saved in the same directory.

  6. Double-click the upgrader executable to start the upgrader wizard, and on the Welcome to the Hub and Interact Upgrader screen, click Next.
  7. On the End-User License Agreement screen, read the End-User License Agreement and, if you agree to the terms, select the check box and click Next.
  8. On the Ready for Upgrade to 4.6 screen, click Next to upgrade Hub and Interact to 4.6.

  9. On the Completed the Blue Prism Hub and Blue Prism Interact upgrade screen:

    • When the upgrade completes successfully, click Finish.

    • If the installation failed, the View Log option will give you details of the error that was encountered. For more information, see Troubleshooting upgrades.

  10. Repeat the process on all machines on which Hub and/or Interact is installed.
  11. Check that the services and application pools stopped in steps 1 and 2 have restarted. If they have not, restart them.
  12. If you are using the Blue Prism API, log into Hub as an administrator and enter the API URL on the Environment management page.

The plugins are automatically updated to the latest version as part of the upgrade process.

Upgrade Interact API VBO

The Interact API VBO is used within the Blue Prism interactive client, and it is updated independently to utilize any new features within the Interact API Service that are available when Interact is upgraded. The latest version of the VBO is available in the Interact API Service release zip file on the Blue Prism Portal.

To upgrade the VBO, you only need to update the Utility - Interact VBO:

  1. Download the Interact API Service release file from the Blue Prism Portal.
  2. Unzip the Interact API Service release file.

  3. In the Blue Prism interactive client and select File > Import > Release/Skill.

    The Choose the input file screen displays.

  4. Click Browse and select the extracted Interact API Release.bprelease file, then click Next.

    The Resolve Import Conflicts screen displays.

  5. In the Resolution column:

    1. Leave the setting for Utility - Interact API as Overwrite the existing business object.

    2. Change the settings for all the other components to Don't import this business object.

  6. Click Next.

    The Process logging overview screen displays.

  7. Ensure that only Utility - Interact API is listed for import. If:

    • Other components are listed, click Back and change the settings as detailed in step 5 above.
    • It is the only component, click Next to complete the import.

  8. Click Finish.

Troubleshooting upgrades

The upgrade says it ended prematurely, what happens now.

The upgrade process has been designed so that if a failure is encountered, it rolls back the install and reinstates the version you were upgrading from. During the upgrade, the folder backup_4.n is created in the installation location (by default, C:\Program Files (x86)\Blue Prism\), where 4.n reflects the existing version number. This contains a copy of the existing installed files and is used as the roll back source if an error is encountered during the installation.

You can try running the upgrader again. Before retrying an upgrade, read any error messages and log files created during the upgrade and ensure any issues have been addressed before attempting the upgrade again.

If this issue persists, please contact Blue Prism Support.

I have upgraded to version 4.6 but the 4.1 user interface still displays.

If this is encountered, clear your browser cache and reload the page.

I have upgraded from 4.1, however, none of my new queues are being created.

This is likely due to the quorum queue feature not being enabled in RabbitMQ. If you check the Hub logs, you will see the error "the 'quorum_queue' feature is disabled".

  1. On the Message Broker server, run the RabbitMQ command:

    rabbitmqctl enable_feature_flag quorum_queue

  2. On the Hub web server, restart the application pools.

    The queues are created.

Following an upgrade, when I attempt to log into Interact or Hub, I am seeing an error related to SignalR about overloading the web server in IIS.

This error is very rare but if it does occur, reload the site and restart the application pools in IIS.

I canceled an installation during the upgrade process and I am now seeing errors.

It is recommended that installations are not canceled during the upgrade process. However, although errors may be seen, the rollback operation will complete successfully.