Closes #32

changelog.md

@@ -34,6 +34,20 @@ existing Git tag; subsequent changes are listed as unreleased.
 
 #### Fixed
 
+- Replace recursive regular-expression matching for `SG_` statements with an
+  iterative field scanner. Long unit strings no longer overflow the stack.
+- Parse signal physical values directly with locale-independent `from_chars`,
+  retaining complete-token, finite-value, overflow, and underflow validation
+  without recursive numeric regex matching.
+- Preserve long valid fields without a new length limit, and reject malformed
+  statements through the existing source-located diagnostic and throwing APIs.
+- Add parser regressions for 50,000-character fields, large receiver lists,
+  malformed syntax, and numeric errors. Verify Release and ASan/UBSan builds
+  with the optional Qt adapter: 2,409 core checks, seven model checks, and the
+  qmake tree test pass in each build. One named-locale test skips because its
+  locale is unavailable; local sanitizer leak checking remains disabled due
+  to the documented ptrace restriction.
+
 - Read attribute definitions, defaults, and assignments across physical lines.
   Preserve quoted newlines and semicolons, and report attribute errors and
   unsupported frame formats at the statement's first physical line.