Added

• Support writing to streams in all writers #1292
• Support CSV files with data wrapping a lot of lines #1468
• Support protection of worksheet by a specific hash algorithm #1485

Fixed

• Fix Chart samples by updating chart parameter from 0 to DataSeries::EMPTY_AS_GAP #1448
• Fix return type in docblock for the Cells::get() #1398
• Fix RATE, PRICE, XIRR, and XNPV Functions #1456
• Save Excel 2010+ functions properly in XLSX #1461
• Several improvements in HTML writer #1464
• Fix incorrect behaviour when saving XLSX file with drawings #1462,
• Fix Crash while trying setting a cell the value "123456\n" #1476
• Improved DATEDIF() function and reduced errors for Y and YM units #1466
• Stricter typing for mergeCells #1494

Changed

• Drop support for PHP 7.1, according to https://phpspreadsheet.readthedocs.io/en/latest/#php-version-support
• Drop partial migration tool in favor of complete migration via RectorPHP #1445
• Limit composer package to src/ #1424