10 November 2005
    Itzam/Core 2.1.1 released
    
    Fixed bug in management of deleted list
    
    Added check for 64-bit datafile on 32-bit platforms

8 November 2005
    Itzam/Core 2.1.0 released
    
    Entirely new scheme for handling deleted records. Instead of a linked
    list, Itzam now uses a table. The table is *only* created if deletion
    occurs on a given datafile.
    
    Changed itzam_record_header.m_status to itzam_record_header.m_flags, from
    an 8-bit value to a 32-bit bitmask.

    Minor change to output of itzam_exercise
    
    Simplified main loop of itzam_exercise
    
    Fixed bugs in itzam_btree_insert_rec that resulted in excessively large files
    
    Extended Itzam error condition to reflect improved error trapping
    
    Improved error trapping in itzam_btree_remove
    
    Fixed a few inconsistencies in using itzam_ref and itzam_int
    
    Added new tests and datafile analyses
    
    Fixed bug in itzam_datafile_rewind where it strated in the wrong place (duh)

1 November 2005
    Itzam/Core 2.0.0 released.
    
    Compile-time support for generating version using 32-bit
    file pointers (default is 64-bit pointers) by defining the
    ITZAM32 symbol.

    Embedded datafile version now includes number of bits in
    a file reference.
    
    Added functions to retrieve bits-per-reference and version.
    
    Added Microsoft Visual Studio 2005 solution and project
    files.
    
    Changed fopen and sprintf function calls to reflect
    Microsoft's obsession with "safety" in Visual C++ 14.0.
    
    Fixed minor bug in itzam_datafile_rewrite.
    
    Implemented a few minor "need better error handling" todos.
    
    Minor optimizations and code clean-ups.
    
    Minor changes to support C++ wrapper.
    
9 October 2005
    Itzam 1.2.0 released.
    
    Added tutorial and API documentation.
    
    Added Microsoft Visual Studio.NET 2003 solution and
    projects.
    
    Modified stress_btree.c for MS Visual C++.
    
    Minor cruft removal.
    
    Added tree structure analysis routines to debug facilities
    and stress_btree test program.

5 May 2005
    Itzam 1.1.0 released.
    
    Added iterator selectors, which returns true or false for
    a key. Only "true" keys will be included in the iterator
    list. This allows the creation of subsets or filters -- for
    example all odd numbers, or all names beginning with "S". 
    
    Fixed bug in itzam_btree_iterator_move_prev that prevented
    reverse traversal of an index iterator.
    
    A few minor internal names were changed for consistency's
    sake.
    
    The stress_btree test application is better documented and
    commented. Use the -help option to see what all it does.

18 April 2005
    Initial 1.0.0 release