When you enter invalid data, a stop sign appears next to the input. Clicking on the stop sign displays an error message. These messages have been improved in the current release.
For example, dates must be entered using the m/d/yyyy format, with four digits for the year. Previously, if you entered a date using two digits for the year (m/d/yy), the error message only stated that the date was invalid:
In the current release, the error message reminds you to use the m/d/yyyy format: