public boolean isNew() {
		Date announcementDate = config.getAnnouncementDate();
		if (announcementDate != null) {
			Date weekAgo = DateUtils.addDays(new Date(), -7);
			return announcementDate.after(weekAgo);
		} else {
			return false;
		}
	}
Check the announcement was changed since 1 week ago.

@return true if it's new one
ngrinder-controller/src/main/java/org/ngrinder/operation/service/AnnouncementService.java