PDSMAN maintenance has been available using multiple methods. One form, the PTF Bucket, is being phased out as of September 15th 2016 and Chorus Software Manager (CSM) was phased out as of June 30, 2023.
How should PDSMAN PTFs be downloaded currently?
Release: PDSMAN PDS Library Management 7.7
As an alternative to the PDSMAN PTF Bucket and CSM, there are various methods documented within the 'Install Maintenance' section of PDSMAN techdoc.