MATLAB R2020b

What's new in this version:

Environment:
- MATLAB Online Accessibility: Use a screen reader to interact with the Command Window and create scripts and functions
- Live Editor Images: Add alternative text to images
- Live Editor Images: Change the size of images
- Live Editor Hyperlinks: Navigate to existing files from a live script or live function using links
- Live Editor Export: Export all live scripts and live functions in a folder to a standard format
- matlabRelease Object: Query MATLAB Release Information
- Query Parallel Functionality: Determine if support for Parallel Computing Toolbox functionality is available
- Comparison Tool: Compare text files in MATLAB Online
- Language and Programming:
- pattern Object and Functions: Match patterns in text functions
- extract Function: Extract substrings from strings
- Functions: New validation functions for arguments and properties
- underlyingType, isUnderlyingType, and mustBeUnderlyingType Functions: Query the underlying data type of classes
- height and width Functions: Return number of rows or columns in an array
- Class conversions: Assignment operations convert more classes into built-in data types
- Functionality being removed or changed

Data Analysis:
- Implicit Expansion: For calendarDuration, categorical, datetime, and duration arrays, automatically expand dimensions of length 1 when applying element-wise operations and functions
- normalize Function: Scale data by interquartile range
- groupsummary Function: Summarize data using functions that require multiple input arguments
- fillmissing Function and Clean Missing Data Live Editor Task: Specify maximum gap size to fill
- Clean Outlier Data Live Editor Task: Define outliers based on percentile thresholds
- Functionality being removed or changed
- Data Import and Export:
- readstruct and writestruct functions: Read and write structured data in XML files
- readlines function: Read the lines in a text file as a string array
- Spreadsheet files: Customize formatting when writing data to spreadsheet files with PreserveFormat and AutoFitWidth
- imread function and Tiff object: Read images from Aperio SVS and TIFF files containing JPEG2000 compression
- ArrayDatastore object: Create datastores from in-memory data
- Datastore: Transform multiple datastores using the transform function
- FileDatastore object: Shuffle and create subsets of a FileDatastore
- writeall function: Write data from text and spreadsheet files to different row groups in Parquet files
- fileparts function: Parse file names specified as cell arrays of character vectors and string arrays
- Audio devices: Refresh the available audio devices using the audiodevreset function
- Audio files and web-based data: Read and write remotely stored audio files using audioread, audiowrite, and audioinfo
- HDF5 files and web-based data: Read and write remotely-stored HDF5 files using existing HDF5 functions
- HDF5 files: Read and write file names encoded using Unicode characters
- Scientific File Format Libraries: NetCDF library upgraded to 4.7.3
- Image File Format Libraries: LibTIFF library upgraded to version 4.1.0
- Bluetooth Interface: Support for communicating with Bluetooth devices
- TCP/IP Client Interface: New functions and properties
- Serial Port Interface: Improved performance
- Functionality being removed or changed
- Mathematics:
- Optimize Live E:ditor Task: Solve optimization problems interactively
- pagemtimes Function: Perform matrix multiplication on pages of N-D arrays
- pagetranspose and pagectranspose Functions: Transpose pages of N-D arrays
- svdsketch Function: Compute SVD factors of low-rank matrix sketch
- Functionality being removed or changed

Graphics:
- bubblechart, bubblechart3, and polarbubblechart Functions: Create bubble charts in 2-D, 3-D, and in polar coordinates
- Swarm charts and Scatter objects: Visualize distributions of discrete data
- scatter Function: Vary the transparency across all points
- tiledlayout and nexttile Functions: Improved placement of legends, and colorbars, and shared decorations
- axis Function: Pad axis limits to show plotted data near the limits more clearly
- Titles, Subtitles, and Axis Labels: Add subtitles to plots, and align titles and axis labels with the plot box
- Data Tips: Customize data tip content on standalone visualizations
- turbo Colormap: jet colormap alternative with more perceptually uniform transitions
- Colormap Editor: Customize colormaps using modernized interface
- boxchart Function: Use color to differentiate between box charts
- im2gray and cmap2gray: Convert images and colormaps to grayscale
- validatecolor Function: Calculate normalized RGB triplets for color names, hexadecimal color codes, or integer values
- Markers: Specify horizontal or vertical line markers for plots
- surfc and meshc Functions: Specify Z-level for contours on surface and mesh plots
- animatedline Function: Create animated lines in polar plots
- colororder Function: Control colors in geographic bubble charts
- Functionality being removed or changed

App Building:
- uitable Function: Configure column widths to use weighted variable or to automatically adjust to fit data
- scroll Function: Scroll to the top or bottom of a text area programmatically
- WindowStyle Property: Create modal UI figures
- Icon Property: Specify custom icons for UI figure windows and toolbar push and toggle tools
- WordWrap Property: Wrap long text to fit the width of certain UI components
- Enable Property: Turn interaction off and on for buttons and panel groups
- BackgroundColor Property: Set the background color for grid layouts
- Custom Components: Develop your own class of UI components
- App Designer: Allow only one running instance of your app at a time
- App Designer: Change the stacking order of UI components
- App Designer: Add and configure toolbar components on the App Designer canvas
- App Designer: Draw UI components on the App Designer canvas
- App Designer: Find differences and merge apps
- Graphics Support: Create more plots in apps with full support for any type of axes
- Graphics Support: Identify coordinates and display text by clicking or tapping
- App Capture: Capture user interfaces using exportapp and getframe
- App Testing Framework: Perform choose gestures on context menu items
- App Testing Framework: Perform drag gestures on axes and UI axes
- App Testing Framework: Perform gestures on push tools and toggle tools
- Functionality Being Removed or Changed

Performance:
- sum Function: Improved performance summing the first dimension of numeric arrays
- polyfit Function: Improved performance fitting data
- accumarray Function: Improved performance with fill values and certain function handles
- spdiags Function: Improved performance constructing sparse banded matrices
- uilistbox: Improved performance when setting multiple items in a list box
- uitree: Improved performance when creating many nodes in a tree
- Data Tip Markers: Improved rendering performance of data tip markers in surface plots of large data sets created in UI figures and MATLAB Online

Software Development Tools:
- Code Compatibility Report: Unsupported Functionality Will Now Issue Warning
- Dependency Analyzer: Export to archive and generate a dependency report
- Source Control: Improved workflow to set up Git source control
- Projects: Change project definition file type and preserve source control history
- Unit Testing Framework: Run tests in parallel on clusters and clouds
- Unit Testing Framework: Run tests in parallel with standalone applications
- Unit Testing Framework: Report the validity of shared test fixtures
- App Testing Framework: Perform choose gestures on context menu items
- App Testing Framework: Perform drag gestures on axes and UI axes
- App Testing Framework: Perform gestures on push tools and toggle tools
- Functionality being removed or changed

External Language Interfaces:
- C++ Interface: Support for nullptr
- C++ Interface: Create interface with C++ source files
- Python: Version 3.8 support
- Python: Terminate Python interpreter and start new one in same MATLAB session
- mxCreateString C Matrix API functions: UTF-8 support
- MATLAB Data API: Create matlab::data::Object arrays
- Compiler support changed for building C++ interfaces, MEX files, and standalone MATLAB engine and MAT-file applications
- Functionality being removed or changed

Hardware Support:
- Live Editor Task: Interactively capture images from USB Webcam interactively and generate MATLAB code in a live script.
- Functionality being removed or changed