Release Notes: PHP5 compatibility has been added. Several bugs have been fixed.
Release Notes: Excel formula support and some other tweaks have been added.
Release Notes: Some bugs have been fixed. Some cleanups have been made. Support for little-endian architectures has been added. A FAQ has been added.
Release Notes: Some missing cell formatting functions have been added. Some files have been cleaned up. Support for files bigger than 7 MB has been added.
Release Notes: The date/time utility functions have been fixed. Some cleanups have been made. For people it didn't work at all up to now, chances are good that it works now due to a small workaround for a bug in older PHP versions.
Release Notes: Several PHP warnings regarding call-time pass-by-reference and undefined constants have been fixed.
Release Notes: Support for inserting bitmaps, and some fixes for improved compatibility with the Spreadsheet::WriteExcel examples.