Monitor edits save completely or not at all. Changing a monitor's terms and subreddits is now a single step. Before, a problem partway through could leave a monitor with its old terms removed and its new ones missing.
Subreddit names are checked as you enter them. A subreddit name is 2 to 21 letters, numbers or underscores, the same rule Reddit uses. You can still type r/SaaS or /r/SaaS; the prefix is removed for you.
Your plan's monitor count holds. Creating monitors quickly in two tabs can no longer take a workspace past its plan's limit.
Dashboard numbers stay accurate. Totals, the median score and the seven-day chart are now counted in full on the server, so they stay right on a busy workspace, and the dashboard loads less data to show them.