Merge branch 'release/3.1.44' into support/3.1

* fix(math): fix equation regexp

Fixes #702.

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.44] - 2022-01-18
+
 ### Fixed
 - Fixed illegal characters bug in math function security check [#702](https://github.com/smarty-php/smarty/issues/702)
 

libs/Smarty.class.php

@@ -111,7 +111,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.43';
+    const SMARTY_VERSION = '3.1.44';
     /**
      * define variable scopes
      */