Release Notes: A second pointer set is added. While the previously introduced pointer set is built over a B+ tree, the new pointer set is built over a plain B tree. The speed of the two sets is closely matched; the newly introduced set uses about 3% less memory.
Release Notes: This release adds two delete methods, one deleting the first element and the other the last element.
Release Notes: A bug in the previously introduced data structure clearing routines is fixed.
Release Notes: Missing data structure clearing routines were added. Two more data retrieval routines were added for fetching the first and the last element.
Release Notes: Support for 64-bit machines was added.
Release Notes: A generic set has been added. Data of any type (not just pointer type) may be recorded with the set. The header file is now installed. Texinfo documentation has been added.