• ZSS-182: Fire stop editing by up ,down,right or left keys pressing
• ZSS-688: Clone a sheet and add it to the current book
• ZSS-690: Edit cell with text contains line break, it should apply "wrap-text" to the cell automatically
• ZSS-695: PDF exporter supports to shrink a sheet to fit a page
• ZSS-725: Provide a richtext editor for inline cell styles
• ZSS-735: Picture should reuse same PictureData
• ZSS-736: Add a new "copy sheet" option on sheet tab context dialog
• ZSS-742: Support API for input rich text
• ZSS-747: Cache formula parsing results
• ZSS-750: Optimize setEditText() to avoid set into the same cell with the same text
• ZSS-751: Provide a new APIs which refresh the specified range.
• ZSS-759: Optimize evaluation to use the cached Ptg[]
• ZSS-760: Provide control to avoid unnecessary auto update on setXxx()
• ZSS-765: Import/export more printing setup parameters
• ZSS-768: Support horizontal/vertical center-on-page when export to PDF
• ZSS-769: Support print heading when export to PDF
• ZSS-770: Support print repeating column/row titles when export to PDF.
• ZSS-771: Support Left-to-Right then Top-to-Bottom paging when export to PDF.
• ZSS-772: Support render long text that across Cell boundary when export to PDF
• ZSS-773: Support rendering text in merged cell that across cell boundary when export to PDF
• ZSS-775: Support scale page when export to PDF
• ZSS-776: Support print double border when export to PDF
• ZSS-778: Support print header and footer when export to PDF
• ZSS-789: Support print double underline and account underline when export to PDF.
• ZSS-803: Support resolving formula Name.

• ZSS-178: Fail to export chart properly to pdf
• ZSS-185: When exporting as a PDF the output of merged cells is incorrect with extra borders displayed within the merged cells
• ZSS-195: When exporting a PDF the defined print areas for workbook pages are not honored.
• ZSS-320: Exported PDF file has big difference with original one in the Spreadsheet, when spreadsheet book has pictures
• ZSS-529: exporting a sheet to PDF creates odd page breaks
• ZSS-549: Enlarge a text to exceed its row height, the text will not be exported to PDF
• ZSS-700: ConcurrentModificationException happened when testing with intensive formula test case
• ZSS-701: NullPointerException happened when testing with collaboration editing test case
• ZSS-710: When rename sheet, cannot press "Delete" key to delete a character
• ZSS-722: autoFill() with non-VALUE option should not copy value over.
• ZSS-726: Error when typing a locale specific Currency symbol
• ZSS-728: Rich text format does not apply to the cell when import excel
• ZSS-729: Range.setValidation() with formula doesn't create a drop-down input
• ZSS-737: Can't type Chinese/Korean character correctly
• ZSS-739: IllegalStateException when testing with collaboration editing test case
• ZSS-740: IndexOutOfBoundsException when testing with collaboration editing test case
• ZSS-743: Possible performance impact due to formula re-evaluation
• ZSS-744: Click toolbar button when inline editing does not stop editing in IE
• ZSS-746: Excel complains Security Alert - Office File Validation on exported xls file
• ZSS-748: Cell text can not display as subscript or superscript with rich text format
• ZSS-752: Failed to apply style to a cell with rich text correctly.
• ZSS-753: Cannot undo setRichText()
• ZSS-754: The method Range.setValidation() doesn't have annotation @since 3.5.0
• ZSS-755: Press minus key, '-', cannot enter editing mode in a cell under firefox
• ZSS-756: Unexpected messagebox showed in the Insert Function Window
• ZSS-762: context menu on sheet bar may be closed when we right click on the inactive sheet tab
• ZSS-766: freeze panel is not working in IE10
• ZSS-774: Text line space is not consistent with Excel's printouts when export to PDF
• ZSS-779: Text clipped when export center-across-selection cells to PDF
• ZSS-780: Cell with background color should not print grid-line when export to PDF
• ZSS-781: ZSS doesn't update formula's cell reference of different sheet after renaming
• ZSS-783: rich text should be hidden by other cells when content height is larger than cell's.
• ZSS-788: ZK Spreadsheet incompatible with zk-bootstrap
• ZSS-790: Cannot handle formulas which refer to Name of the other sheets'
• ZSS-791: General number formatting should consider the merge cell width
• ZSS-792: Fail to correctly check legal Name name
• ZSS-795: '?' should be a legal character in defined Name
• ZSS-796: Fail to load book with table formula
• ZSS-797: White background exported to become black background.
• ZSS-798: "The document is not open." exception when export to PDF
• ZSS-799: Row number is clipped if load a spreadsheet whose default row height is greater than 20px
• ZSS-802: Fail to export Sheet with PrintArea.
• ZSS-804: A Formula Name which should return a Range.
• ZSS-805: Validation dropdown button is not correctly positioned in merged cell
• ZSS-810: Validation formula that evaluated to an AreaEval should list its formatted text.

The Following API is deprecated

• void SSheet.removeDataValidationRegion(CellRegion region): Use the new List SSheet.deleteDataValidationRegion(CellRegion region) instead.