[ci skip] Update docs to account for 2.2.1 release
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index e389d0a..7dddea0 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -716,7 +716,6 @@
- Fixed a bug (#2061) - :doc:`Routing Class <general/routing>` didn't properly sanitize directory, controller and function triggers with **enable_query_strings** set to TRUE.
- Fixed a bug - SQLSRV didn't support ``escape_like_str()`` or escaping an array of values.
- Fixed a bug - :doc:`Database Results <database/results>` method ``list_fields()`` didn't reset its field pointer for the 'mysql', 'mysqli' and 'mssql' drivers.
-- Fixed a bug (#73) - :doc:`Security Library <libraries/security>` method ``sanitize_filename()`` could be tricked by an XSS attack.
- Fixed a bug (#2211) - :doc:`Migration Library <libraries/migration>` extensions couldn't execute ``CI_Migration::__construct()``.
- Fixed a bug (#2255) - :doc:`Email Library <libraries/email>` didn't apply *smtp_timeout* to socket reads and writes.
- Fixed a bug (#2239) - :doc:`Email Library <libraries/email>` improperly handled the Subject when used with *bcc_batch_mode* resulting in E_WARNING messages and an empty Subject.
@@ -740,14 +739,12 @@
- Fixed a bug (#2609) - :doc:`Common function <general/common_functions>` :func:`get_config()` optional argument was only effective on first function call. Also, it can now add items, in addition to updating existing items.
- Fixed a bug in the 'postgre' :doc:`database <database/index>` driver where the connection ID wasn't passed to ``pg_escape_string()``.
- Fixed a bug (#33) - Script execution was terminated when an invalid cookie key was encountered.
-- Fixed a bug (#2681) - :doc:`Security Library <libraries/security>` method ``entity_decode()`` used the `PREG_REPLACE_EVAL` flag, which is deprecated since PHP 5.5.
- Fixed a bug (#2691) - nested :doc:`database <database/index>` transactions could end in a deadlock when an error is encountered with *db_debug* set to TRUE.
- Fixed a bug (#2515) - ``_exception_handler()`` used to send the 200 "OK" HTTP status code and didn't stop script exection even on fatal errors.
- Fixed a bug - Redis :doc:`Caching <libraries/caching>` driver didn't handle connection failures properly.
- Fixed a bug (#2756) - :doc:`Database Class <database/index>` executed the MySQL-specific `SET SESSION sql_mode` query for all drivers when the 'stricton' option is set.
- Fixed a bug (#2579) - :doc:`Query Builder <database/query_builder>` "no escape" functionality didn't work properly with query cache.
- Fixed a bug (#2237) - :doc:`Parser Library <libraries/parser>` failed if the same tag pair is used more than once within a template.
-- Fixed a bug (#2268) - :doc:`Security Library <libraries/security>` didn't properly match JavaScript events.
- Fixed a bug (#2143) - :doc:`Form Validation Library <libraries/form_validation>` didn't check for rule groups named in a *controller/method* manner when trying to load from a config file.
- Fixed a bug (#2762) - :doc:`Hooks Class <general/hooks>` didn't properly check if the called class/function exists.
- Fixed a bug (#148) - :doc:`Input Library <libraries/input>` internal method ``_clean_input_data()`` assumed that it data is URL-encoded, stripping certain character sequences from it.
@@ -758,7 +755,6 @@
- Fixed a bug where :doc:`User Agent Library <libraries/user_agent>` methods ``accept_charset()`` and ``accept_lang()`` didn't properly parse HTTP headers that contain spaces.
- Fixed a bug where *default_controller* was called instad of triggering a 404 error if the current route is in a controller directory.
- Fixed a bug (#2737) - :doc:`XML-RPC Library <libraries/xmlrpc>` used objects as array keys, which triggered E_NOTICE messages.
-- Fixed a bug (#2729) - :doc:`Security Library <libraries/security>` internal method ``_validate_entities()`` used overly-intrusive ``preg_replace()`` patterns that produced false-positives.
- Fixed a bug (#2771) - :doc:`Security Library <libraries/security>` method ``xss_clean()`` didn't take into account HTML5 entities.
- Fixed a bug (#2856) - ODBC method ``affected_rows()`` passed an incorrect value to ``odbc_num_rows()``.
- Fixed a bug (#43) :doc:`Image Manipulation Library <libraries/image_lib>` method ``text_watermark()`` didn't properly determine watermark placement.
@@ -770,6 +766,31 @@
- Fixed a bug (#3161) - :doc:`Cache Library <libraries/caching>` methods `increment()`, `decrement()` didn't auto-create non-existent items when using redis and/or file storage.
- Fixed a bug (#3189) - :doc:`Parser Library <libraries/parser>` used double replacement on ``key->value`` pairs, exposing a potential template injection vulnerability.
+Version 2.2.1
+=============
+
+Release Date: January 22, 2015
+
+- General Changes
+
+ - Improved security in ``xss_clean()``.
+ - Updated timezones in :doc:`Date Helper <helpers/date_helper>`.
+
+Bug fixes for 2.2.1
+-------------------
+
+- Fixed a bug (#3094) - Internal method ``CI_Input::_clean_input_data()`` breaks encrypted session cookies.
+- Fixed a bug (#2268) - :doc:`Security Library <libraries/security>` method ``xss_clean()`` didn't properly match JavaScript events.
+- Fixed a bug (#3309) - :doc:`Security Library <libraries/security>` method ``xss_clean()`` used an overly-invasive pattern to strip JS event handlers.
+- Fixed a bug (#2771) - :doc:`Security Library <libraries/security>` method ``xss_clean()`` didn't take into account HTML5 entities.
+- Fixed a bug (#73) - :doc:`Security Library <libraries/security>` method ``sanitize_filename()`` could be tricked by an XSS attack.
+- Fixed a bug (#2681) - :doc:`Security Library <libraries/security>` method ``entity_decode()`` used the ``PREG_REPLACE_EVAL`` flag, which is deprecated since PHP 5.5.
+- Fixed a bug (#3302) - Internal function ``get_config()`` triggered an E_NOTICE message on PHP 5.6.
+- Fixed a bug (#2508) - :doc:`Config Library <libraries/config>` didn't properly detect if the current request is via HTTPS.
+- Fixed a bug (#3314) - SQLSRV :doc:`Database driver <database/index>`'s method ``count_all()`` didn't escape the supplied table name.
+- Fixed a bug (#3404) - MySQLi :doc:`Database driver <database/index>`'s method ``escape_str()`` had a wrong fallback to ``mysql_escape_string()`` when there was no active connection.
+- Fixed a bug in the :doc:`Session Library <libraries/sessions>` where session ID regeneration occurred during AJAX requests.
+
Version 2.2.0
=============