Dec 2023 version 3.5.0

Changed pin identifiers from uint8_t to int8_t
Added initialization of library parameters to begin()
Added Hourglass example

Aug 2023 version 3.4.2

Fixed issue with getColumn() 8 bit parameter

Jun 2023 version 3.4.1

Changed MBED #define handling from v3.2.5 (MBED_SPI_ACTIVE). This may break MBED implementations as unable to test.

May 2023 version 3.4.0

begin() now returns bool value.

Oct 2022 version 3.3.1

Added RPS_Game example

Jan 2021 version 3.3.0

Added SimplePong example
New form of constructor allows specifying alternative hardware SPI

Dec 2020 version 3.2.6

Added SimpleSlots example
Added Examples README.md

Dec 2020 version 3.2.5

Fixed issue with MBED and ARDUINO compatibility exposed by Nano BLE33 (issue #38, PR #39)

Nov 2020 version 3.2.4

Fixed TSLR bug reported in transform() function

Aug 2020 version 3.2.3

Corrected Message_Serial example

Nov 2019 version 3.2.2

Added structured hardware names for untested hardware configurations (New Hardware Types).
Mbed (https://github.com/ARMmbed/mbed-os) support (PR #30 from JojoS62, 2020-07-06)

Oct 2019 version 3.2.1

First large (150 module system) - increase size of SPI counters to int16_t

Sep 2019 version 3.2.0

Change character codes to 16 bit to allow up to 65535 characters in font table.
Retested examples for clean compile with new version of compiler.

May 2019 version 3.1.0

Changed font definition to more modern look.
Font ASCII code > 127 now conforms to unicode Latin-1 supplement.

Oct 2018 version 3.0.2

Updated to remove 'left over' serial print debug.

Aug 2018 version 3.0.1

Fixed problem with calculating font width in info structure.

June 2018 version 3.0.0

Implemented new font file format (file format version 1).
Removed 'drawXXX' graphics functions to new MD_MAXPanel library.
Removed font indexing as this never used.
Added getFontHeight() method.
Module type now specified at run time.

Apr 2018 version 2.11.1

Another attempt to further clarify editing of header file for hardware changes.

Apr 2018 version 2.11.0

Restructured header file to make hardware flags more obvious
Added drawHLine(), drawVLine(), drawRectangle() methods

Mar 2018 version 2.10.1

Reworked HW Mapping utility.
setColumn() parameter changed from uint8_t to uint16_t to allow for more than 256 column in the matrix [BUG]

Nov 2017 version 2.10.0

Changed SPI buffer handling and isolation of AVR specific features (eg PROGMEM)
Added MD_MAX72xx_Message_ESP8266 example
Minor source file cleanup
Added Extended ASCII font, vertical rotated font and RobotEyes font in fontbuilder
Modified font builder output code for consistency with new code
Added getFont(), getMaxFontWidth() methods
Changed example - replaced MD_KeySwitch with new MD_UISwitch library

Nov 2016 version 2.9.0

Added WordClock example
Deprecated USE_LIBRARY_SPI as no problems reported with new implementation
Changed MD_ branding to new MajicDesigns diamond
Small adjustments to initialization code

Mar 2016 version 2.8

Added example Message_SD and renamed Message to Message_Serial
Added Pacman example
Added PushWheel example
Added USE_LIBRARY_SPI to enable library SPI object
Modified all examples to conditionally include <SPI.h>
FontBuilder modified to handle definitions for double height fonts
New txt2font utility for easier font creation from a text file
Revised and re-organized documentation; expanded section on fonts

April 2015 version 2.7

Changed to Daft Punk example to run without switch
Now supporting IDE Library Manager

February 2015 version 2.6

Improvements to HW_Mapper utility
Added HW_USE_FC16 for FC-16 display modules
Added USE_HW_OTHER for user defined hardware configuration
Fixed incorrect spelling for HW_REV_COLS in transformBuffer() & corresponding bug
Added PrintText_ML example

February 2015 version 2.5

Documented process for adding new hardware module type
Fixed PROGMEM definitions for IDE version 1.5.7 compile error
Added Daft Punk example code
Updated HW_Mapper example/utility with built-in instructions
Minor problems with Parola font setting interaction fixed

April 2014 version 2.4

Improved reliability of initialization code to remove artifacts
- Changed order of hardware initialization for SS, _csPin
- Changed initialization sequence at begin()
- Fixed memset bug identified by bperrybap
Reworked command SPI transmissions for efficiency
Cleanup up compiler warnings on inline wrapper code functions
Cleaned up examples begin() - better defined library default values
Reviewed and tidied up some documentation

March 2014 - version 2.3

Extensive rework of the font system
- New Microsoft Excel VBA based font builder tool available
- Removed USE_FONT_ADJUST and related code - replace by builder tool
- Fixed width font has been removed from the library. Definition still available in font builder
- fontype_t definition changed to suit new requirements
Transform zoning implemented (contiguous subset of services)
- Transformation functions, control, clear, setRow methods overloaded with range specifier
- User callback for L/R rotation function syntax added a device parameter
- New Zones example
USE_*_HW hardware types now separated out for future flexibility
- Rework of the library to use new schema for defining hardware characteristics
- New utility code to map out digits and segments for unknown hardware types
Rechecked and reworked examples for new library

November 2013 - version 2.2

Replaced reference to SPI library with inline code to allow for different select lines
Obsoleted INCLUDE_HARDWARE_SPI conditional compile switch
Fixed legacy code function name error when USE_FONT_ADJUST switch turned on
Implemented USE_PAROLA_HW to allow cheaply available matrix modules to be used in ganged mode
Fixed reversal of bit field for set/get Row/Column functions -> flipped charset data
Added Eyes example program
Upgraded and reorganized documentation

June 2013 - version 2.1

Include the selection of hardware SPI interface (10x speed improvement)
Tidied up comments

April 2013 - version 2.0

Major update and rewrite of library code:
- Improved speed and efficiency of code
- Increased level of abstraction in the library for pixel methods
- Increased level of abstraction for character and font methods
- Increased number of functions and added variable sized font
- Changed defines to enumerated types within the scope of the class
- Updated functionality to simplify controlling multiple devices
Changed text and comments to be aligned to doxygen documentation generation

June 2012 - version 1.0

Incorporated elements of Arduino LedControl (Eberhard Fahle) and MAX7219 libraries
Easier functionality for pixel graphics treatment of 8x8 matrices