spout/UPGRADE-3.0.md

Migrate from 2.x to 3.0

Handling of empty rows

• The handling of empty data in writers has changed. In 2.x an array was not added to the spreadsheet when empty($dataRow) evaluated to true.
• In 3.0 a row is always written to the speadsheet. When the row does not contain any cells an empty row is created in the sheet.