Update CHANGELOG.md

CHANGELOG.md

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 # Change log
 
+## 8.2.2
+
+### Fixes
+
+#### All Editors
+
+* Fixed displaying some chart types when opening the `DOCX` or `PPTX` documents
+* Fixed availability of buttons on the right panel when the zoom is higher than 200%
+* Fixed application launch on macOS Big Sur with the Apple Silicone architecture
+* Fixed crash of the editor when detaching a tab with a document, opened from the cloud portal, into a separate window
+
+#### Document Editor
+
+* Fixed stopping work of the editor when working with the Text box in the Header if it contains the page number
+* Fixed slow scrolling of documents if the document extends the visible area
+* Fixed stopping work of the editor when comparing some `DOCX` documents
+* Fixed text selection when clicking on a paragraph with Justified alignment
+* Fixed the ability to return to the current document from the version history or show the file if a new version was build on the portal DocSpace/Workspace
+
+#### Spreadsheet Editor
+
+* Fixed stopping work of the editor when deleting a formula from a cell in some `XLSX` files
+* Fixed disappearing formulas when opening some `XLSX` files
+* Fixed the ability to scroll a sheet horizontally using `Shift` + `Mouse wheel`
+* Fixed stopping work of the editor when merging all cells on a sheet
+* Fixed loss of graphic objects rendering after rotating them in the Sheet Right-to-left mode
+* Fixed missing the Multi-Select/Clear Filter of Slicer buttons after scrolling horizontally or vertically
+
+#### PDF Editor
+
+* Fixed stopping work of the editor when adding a matrix in a math equation
+* Fixed the short-term absence of an image added by one of the users in co-editing
+* Fixed incorrect selection of paragraphs/columns in the Select tool mode when opening `XPS`/`OXPS`/`PDF` files
+
+#### Forms
+
+* Fixed the status of unsaved changes presence when clicking Complete & Submit quickly during filling in a form in DocSpace
+
 ## 8.2.1
 
 ### Fixes