Since the Igor 2022 release.
The LogViewer can be reached from the admin window “ View Logs” and allows to view the contents of the log files.
The tab at the top allows you to switch between the different logging facilities, a date input lets you pick the day to display, and a filter field lets you do a simple string match based reduction of the viewed entries.
Use the dontlog configuration setting to disable/enable specific logging.
If the LogViewer cannot be reached, you can find the log files in your file system on