• Scintilla updated to 5.6.2 see https://www.scintilla.org/ScintillaHistory.html for the changes.
• Support Erlang and Elixir, issue #376.
• Support PowerBuilder, issue #1095.
• Support Typst, issue #640.
• Add ability to calculate math expression (with menu "Tools -> Action on Selection -> Calculate Expression") and evaluate JavaScript expression (with menu "Tools -> Web Tools -> Evaluate JS Expression"), discussion #631, contributed by @Matteo-Nigro in PR #1230 and PR #1233
• Add menu "File -> Save with Original Time" to save current file with original timestamp, issue #1199.
• Add menu "Edit -> Special -> Show Character Info" to show character information for first selected character or character after caret, issue #1220.
• Add UrlThreshold property (in [Settings2] section) to configure URL highlighting threshold (in MB, set the value to zero to disable URL highlighting), issue #1212.
• Lexer and API updates: CoffeeScript, CSS, Fortran, Go, HTML, JavaScript, LaTeX, Ruby, Texinfo.
• Improve Russian translation, contributed by @Dimmitrius in PR #1215 and PR #1214.
• Fix wrong INI file location for Chocolatey installation, issue #1200.
• Other bug fixes and improvements.

Expression Evaluation Expression (can be arbitrary JavaScript code) evaluation is provided by system's JavaScript engine (Chakra or JScript), Math. prefix can be omitted when using menu "Tools -> Action on Selection -> Calculate Expression", e.g. exp(PI*sqrt(163)) or pow(E, PI*sqrt(163)) for $e^{\pi\sqrt{163}}$. JavaScript code can be used to do complex computing, e.g. calculate Fibonacci sequence and factorial with following recursion functions:

function fib(n) {
    return (n <= 1) ? n : fib(n - 1) + fib(n - 2);
}
function factorial(n) {
    return (n <= 1) ? 1 : n*factorial(n - 1);
}

[fib(10), factorial(10)]

See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_precedence and https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math for document on operators, Math functions and constants (system's outdated JavaScript engine may not support all of them).

Behavior Changes Behavior for Tab and Enter key in multiline edit boxes on "Enclose Selection", "Enclose HTML/XML Tag", "Insert HTML/XML Tag" and "Modify Lines" dialogs were changed (issue #1197), see following table:

Key	Behavior
Tab	Move to next dialog control (same on other dialogs)
Shift + Tab	Enter tab character (\t)
Enter	Apply changes (same as click OK button)
Shift + Enter	Enter newline (\r\n)