| Type | Changes | By | 
|---|
 | Inserted aliases for FILE_LIST AND FILE_LIST_ZIP handlers (FILELIST AND FILELISTZIP respectively). Added the PDS_LABEL handler for retrieving PDS4 product labels. Updated the operation document to reflect the supported handlers. Fixes PDS-210. | cinquini | 
 | Using the new Pds4ImageTransformer, and ProductTransformer API, from the transformer package. Fixes PDS-211. | cinquini | 
 | Enabling easier URL syntax for product requests, maintain backward compatibility with DIS-style syntax. Fixes PDS-212. | cinquini | 
 | Updated the documentation to reflect the updated installation procedure and the alternative method for querying the service. Fixes PDS-232. | cinquini | 
 | Modified to accept query parameters in lowercase. Fixes PDS-238. | cinquini | 
 | Inserted handlers PDS_ZIP and PDS_ZIP_SIZE to return a compressed package of a PDS3 label and all its references (and the total size of the package when uncompressed). Fixes PDS-250. | cinquini |