The court is supposed to notify you by mail should a hearing date or the need to appear in court change, however, while the court has recently improved in mailing notifications, they are often not received. Furthermore, if one party is lacking in ethics they may claim and falsify documents stating that the other party had been served documents notifying them to appear in court when in fact no notice was given.
Because missing a court date can severely and detrimentally impact your case, it is a best practice to familiarize yourself with the court website, particularly DomainWeb, and be proactive in staying informed about your case.