Sometimes a crash might stop occurring (because, say, you fixed it) for a long while (say months or years), then reappear. In this case, the state of your website or application might be so different from before that you don’t want to treat this new crash event as related to the old one.

To treat such crashes as new crashes, you would need to update the below config in your config/config.ini.php file. By default this setting is set to 730 days (or approximately two years).

[CrashAnalytics]
consider_crash_new_after_n_days={no_of_days}

Previous FAQ: How do I make sure old crash data is regularly deleted?