Add note about HTTPS detection change to 3.0 changelog
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index e27ff88..10f5507 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -99,6 +99,7 @@
- In Pagination library, when use_page_numbers=TRUE previous link and page 1 link do not have the same url
- Fixed a bug (#561) - Errors in :doc:`XML-RPC Library <libraries/xmlrpc>` were not properly escaped.
- Fixed a bug (#904) - ``CI_Loader::initialize()`` caused a PHP Fatal error to be triggered if error level E_STRICT is used.
+- Fixed a hosting edge case where an empty $_SERVER['HTTPS'] variable would evaluate to 'on'
Version 2.1.0
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