Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Update SDK version for AppVeyor

diff --cc .appveyor.yml
index ed6ae6abb114e13a6d67032703c56e7f7d62eeab,ce96a8668d4678de5d9d1fb996226a302c7f32be..37d92e5ef81b06864b570d74f18e57ea322d5401
--- 1/.appveyor.yml
--- 2/.appveyor.yml
+++ b/.appveyor.yml
@@@ -23,8 -23,7 +23,8 @@@ environment
          PHP_BUILD_CACHE_BASE_DIR: c:\build-cache  
          PHP_BUILD_OBJ_DIR: c:\obj
          PHP_BUILD_CACHE_SDK_DIR: c:\build-cache\sdk
-         PHP_BUILD_SDK_BRANCH: php-sdk-2.1.2
+         PHP_BUILD_SDK_BRANCH: php-sdk-2.1.3beta1
 +        PHP_BUILD_CRT: vc15
          # ext and env setup for tests
          #MYSQL_TEST_PASSWD: Password12!
          #MYSQL_TEST_USER: root