Release: Amazon Mechanical Turk on 2007-07-20

Release Notes>Amazon Mechanical Turk>Release: Amazon Mechanical Turk on 2007 07 20
This release of the Amazon Mechanical Turk includes a new version of the API, known as "2007-06-21" that allows Requesters to block/unblock workers from completing the Requester's HITs as well as the ability to change HIT Type properties of HITs that are already posted on Mechanical Turk.


Submitted By: Mark@AWS
Release Date: July 20, 2007 12:00 AM GMT
Latest Version: 2007-06-21
Latest WSDL:
Created On: July 20, 2007 10:58 PM GMT
Last Updated: July 21, 2007 4:41 AM GMT

New Features

Feature Description
Block/Unblock Worker New operations allow you to block and unblock a Worker from doing work on your HITs without using Qualifications.
Change the HIT Type of a HIT You can change the HIT Type of your HITs by using the ChangeHITTypeOfHIT. This will allow you change properties like reward, title, description, etc. on HITs that are already in the production system. There are some limitations which are fully documented in the developer guide.
Enumeration sort property A new sort property Enumeration returns HITs reliably and with no duplicates. This directly impacts SearchHITs and GetReviewableHITs by addressing the current limitations of those operations.

Known Issues

ID Issue Description
MTURK-2733 Cannot disable retry delay for a Qualification type once enabled. There is currently no way to disable the ability to re-request a Qualification if the Qualification type allows retries. A previous release introduced the ability to add a retry delay to a type that doesn't have one, or modify the delay if it does. Once a type has a retry delay, then retries are permanently enabled for the type.
MTURK-3629 Cannot remove a test from a Qualification type. There is currently no way to remove a Qualification test from a Qualification type that has one. A previous release introduced the ability to configure a Qualification type to automatically approve Qualification requests instead of using a Qualification test. Because tests cannot be removed from an existing type, a Qualification type with a test cannot be re-configured to use the auto-approval feature.
MTURK-2856 SearchHITs can include duplicate HITs in results. The SearchHITs API may return a HIT more than once in the results if there are more than 100 active HITs created by the caller when using a sort property other than Enumeration.
MTURK-2034 Incorrect number returned for TotalNumResults response element of GetReviewableHITs. GetReviewableHITs does not reliably return the correct number for the TotalNumResults response element.

If you have any questions or information regarding a potential bug, please let us know by posting a message in the Mechanical Turk developer forums.

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