Jaspersoft customers can download the latest hotfix from the Cloud Software Group's Support Portal Web UI.
Once logged on you can find the hotfix under the Download Menu:
AvailableDownloads/Jaspersoft/JasperReports Server/8.0.4/hotfix_JRSPro8.0.4_cumulative_20231106_1522.zip
Direct download link: https://support.tibco.com/s/hotfixes?id=a014z00000yfh4RAAQ
For instructions on how Cloud Software Group customers can download / access all available hotfixes, please refer to Article 000022290: https://support.tibco.com/s/article/hotfix.
For a summary of the updates included, please refer to the attached README file (also included inside the ZIP archive).