If u r using on prem orchestrator, you can find the latest installers.
Studio/Robot/Assistant 2023.4.0: https://download.uipath.com/versions/23.4.0/UiPathStudio.msi
Orchestrator 2023.4.0: https://download.uipath.com/versions/23.4.0/UiPathOrchestrator.msi
Cheers @henry.wang