|Available in: Salesforce Classic|
|Available in: Developer Edition|
The following changes are allowed to custom fields in a package, after it is released.
- The length of a text field can be increased or decreased.
- The number of digits to the left or right of the decimal point in a number field can be increased or decreased.
- A required field can be made non-required and vice-versa. If a default value was required for a field, that restriction can be removed and vice-versa.