modified how we're performing text highlighting to prevent extra or missing span tags.
Namely, removed the start and ending markers, as if the code being highlighted would be styled the same, PHP would put it all in the same <span>, so when we removed our own additions, it would remove the needed opening span style
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 39303bd..f08c94e 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -118,6 +118,7 @@
<li>Fixed incorrect parenthesis in form_open() function. (#5135)</li>
<li>Fixed a bug that was ignoring case when comparing controller methods (#4560)</li>
<li>Fixed a bug (#4615) that was not setting SMTP authorization settings when using the initialize function</li>
+ <li>Fixed a bug in highlight_code() in the Text helper that would leave a stray </span> in certain cases.</li>
</ul>
<h2>Version 1.6.3</h2>