Release 3.6 This release incorporates a fix to handle base records that are shorter than the AIX key, and a minor change to make it easier to identify the release.
  VSE Versions of the KWIKLOD program are now provided that do not rewind the input tapes at the end of processing.

Release 3.5 NOCI no longer has to be specified when processing compressed datasets if the dataset was defined as compressed when defined with DEFINE CLUSTER. KWIK-KEY will automatically perform VSAM record I/O when it detects the compressed attribute for a VSAM dataset.
  Support for VSAM System Managed Buffers (SMB). All VSAM control blocks and buffers are now above the 16 meg line.
  Versions of the KWIKLOD program are now provided that do not rewind the input tapes at the end of processing.

Release 3.4 The MVS programs now operate in 31-bit mode. The previous requirement that all VSAM buffers be below the 16mb line is removed.
  XXL support (for very large VSAM files) under VSE has been added.

Release 3.3 AMAXLEN installation option removed. Maximum alternate index record length computed and acquired dynamically at execution time.

Release 3.2 Withdrawn.

Release 3.1 Withdrawn.

Release 3.0 Release of VSE KWIK-LOAD. VSE users will now be able to load the VSAM base cluster and build an alternate index at the same time.
  Ability to build multiple alternate index datasets with one pass of the base cluster. KWIK-KEY will build up to nine (9) alternate index or cross reference datasets while reading the base cluster records only once. KWIK-LOAD will also build up to nine (9) alternate index or cross reference datasets while loading the VSAM base cluster.
  Ability to limit the number of base cluster records associated with one alternate key. The new MAXDUP parameter allows users to eliminate excess base cluster keys for an alternate key.
  Performance optimization suggestions. A new section has been added to the reference manual with suggestions to improve the performance of KWIK-KEY and KWIK-LOAD by fine tuning sort features and VSAM dataset options.
  Improved documentation. Separate sections for MVS and VSE control statement formats.