Changes:

• Detection of potential spelling mistakes (a warning will be shown)
• Add support for n...m, j:k, and j:i:k syntax, for sequence of numbers, e.g. 1...3 = (1:3) = (1:1:3) = [1 2 3] (note that brackets may be required for colon syntax to avoid conflict with time format)
• Improved "where" operator, including improved output of parsed expression, support for previously undefined variable names, and assignments before expression (e.g. "a=2, b=2, a^b")
• Click on binary digit in result to flip bit
• Improvements/fixes to conversion completion and menus
• Add retry and cancel buttons to error dialog after failure to save preferences or definitions
• Add last result to stack when pressing Enter with empty expression (was unintentionally disabled)
• Selection of default number of bits for binary and hexadecimal numbers in programming keypad
• Always show binary position numbers in result if numbers of bits are higher than 16, and improve appearance
• More rounding methods
• New units: LightSecond, LightMinute, and LightHour
• New functions: bitget(), bitset(), setbits(), integerDigits(), digitGet(), digitSet(), flip(), colon(), and foreach()
• Support for hexadecimal floating-point literals using 0x...p... notation (0x1.4p3 = 0x1.4 * 2^3 = 10)
• Improve handling of zero solution and initial guess in newtonsolve() and secantsolve(), and check validity of solution
• Change handling a vectors in multiple function arguments (of non-vector type) - return vector instead of matrix, require equal number of elements, and use the same vector index for all arguments for each function instance (e.g. atan2([1 2], [3 4]) = [atan2(1, 3) atan(2 4)]
• Set handle vector property by default, for text, date, and boolean arguments, and for arguments, in global non-builtin functions, without specified type, and enable parsing of vectors for text arguments
• Do not apply "read precision" setting to exponents for values with units
• Change from line to point (or dot) plot style for data with many discontinuous points
• lambertw(x*e^x, 0)=x if x>=-1
• Use parentheses for number with scientific notation in more cases
• Allow plot grid values higher than 1 (true) to specify line width
• Fix dsolve(diff(y, x) = y), and similar
• Fix x and y reversed for paired matrix when using plot dialog
• Fix log(1, 1) (undefined)
• Fix "to"-conversion to prefix and add "prefix" conversion option (for optimal prefix)
• Fix segfault in newtonsolve() and secantsolve() when equation does not contain variable
• Fix conversion to angle unit for complex angle, cis and polar forms
• Exchange rates fixes
• Minor bug fixes and feature enhancements