Here is a summary of the API changes rolled out over the past few weeks:
GetToDoSummary – Return a list of To Dos for an account with ability to filter to a specific contact
GetToDos – Return a summary of To Dos for an account
GetContactBirthdays – Get birthdays for an account for a specific day and month
QuickSearchContacts – This function is designed for speed — searching only First Name, Last Name, Other First Name, Other Last Name, Email Address, and Other Email Address. It also returns only a limited number of fields and is limited to 50 results returned. This would be best used in some kind of “type-along-find” Ajax contact picker.
GetAccounts (Updated) – Now has the option to return the Mail Merge Profile for the account