• Scintilla updated to 5.6.6, see https://www.scintilla.org/ScintillaHistory.html for the changes.
• Localization for Portuguese (Brazil), contributed by @DAVIDVS-PR1MVS in PR #1289 and #1292.
• Remove find/replace text length limitation, issue #1277.
• Fill find replace edit box with last used string after restarting when "Settings -> Other Settings -> Remember Search Option" is enabled, issue #1282.
• Allow NUL (var transform backslash for \x00 or \u0000) in find/replace text.
• Escape/unescape C characters now handle standard \a, \b, \f, \n, \r, \t, \v escape sequence, issue #1221.
• Fix word wrap not show whole pasted long line, issue #1277, #1283.
• Fix random crash caused by date race in multi-threaded word wrap.
• Other bug fixes and improvements.

Behavior Changes

• Escape/unescape HTML/XML characters no longer map space (U+0020) to   (U+00A0), tab (U+0009) to   (U+2003) and vice versa, as they are not equivalent.
• Hex to character now strict on hexadecimal digits, only following forms (all treated as UTF-16/UTF-32 code point) with exact number of digits as H are supported: \xHH, \xHHHH, \uHHHH, \UHHHHHHHH, U+HHHH and U+HHHHHH.
• Transform backslash now strict on hexadecimal digits, see table below.

Form	Description
\xHH	exact two digits, treated as raw byte in current code page (which different from Hex to Character but is same as built-in regex engine)
\uHHHH	exact four digits, UTF-16 code point, could be surrogate pair