We recently got asked why someone wasn't receiving notifications for updates to the attendee group and blog posts. We do not send out emails notifying of updates, so we recommend you check your notification settings. These are handled in two places.
In your account head to the Settings menu and set your preferences.
You can also access Group specific settings via the group by selecting the three dots on the right just above the group menu
and then setting your preferences for notifications via your browser, email, and the mobile app. Our personal preference is via the mobile app as the notifications are less likely to be lost in the masses of spam we receive.
Hope this helps.