[ci skip] Prepare for 3.1.10 release
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 58f6d71..6ed6164 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -5,9 +5,12 @@
 Version 3.1.10
 ==============
 
+Release Date: Jan 16, 2019
+
 -  General Changes
 
-   -  Added 'ssl_verify' support to the 'pdo/mysql' :doc:`Database <database/index> driver.
+   -  Added 'ssl_verify' support to the 'pdo/mysql' :doc:`Database <database/index>` driver.
+   -  Renamed :doc:`Inflector Helper <helpers/inflector_helper>` function ``is_countable()`` to :php:func:`word_is_countable()` due to the former colliding with one introduced in PHP 7.3.0.
 
 Bug fixes for 3.1.10
 --------------------
@@ -264,7 +267,7 @@
 -  General Changes
 
    -  Added ``E_PARSE`` to the list of error levels detected by the shutdown handler.
-   -  Updated :doc:`Inflector Helper <helpers/inflector_helper>` :php:func:`is_countable()` with more words.
+   -  Updated :doc:`Inflector Helper <helpers/inflector_helper>` ``is_countable()`` with more words.
    -  Updated :doc:`common function <general/common_functions>` :php:func:`set_status_header()` with new status codes from IETF RFCs
       `2817 <https://tools.ietf.org/html/rfc2817>`_ (426)
       and `6585 <https://tools.ietf.org/html/rfc6585>`_ (428, 429, 431, 511).