Updated CHANGELOG to 7.16.0

Author: ezimuel

CHANGELOG.md

@@ -1,3 +1,45 @@
+## Release 7.16.0
+
+- Added support of includePortInHostHeader in ClientBuilder::fromConfig
+  [#1181](https://github.com/elastic/elasticsearch-php/pull/1181)
+- Fixed UTF-16 issue in SmartSerializer with single unpaired surrogate in unicode escape
+  [#1179](https://github.com/elastic/elasticsearch-php/pull/1179)
+- Replace trait with abstract class to avoid Deprecated Functionality issue in PHP 8.1
+  [#1175](https://github.com/elastic/elasticsearch-php/pull/1175)
+
+## Release 7.15.0
+
+- Updated endpoints for Elasticsearch 7.15.0
+  [995f6d4](https://github.com/elastic/elasticsearch-php/commit/995f6d4bde7de76004e95d7a434b1d59da7a7e75)
+
+## Release 7.14.0
+
+- Usage of psr/log version 2
+  [#1154](https://github.com/elastic/elasticsearch-php/pull/1154)
+- Update search iterators to send `scroll_id` inside the request body
+  [#1134](https://github.com/elastic/elasticsearch-php/pull/1134)
+- Added the `ingest.geoip.downloader.enabled=false` setting for ES
+  [5867351](https://github.com/elastic/elasticsearch-php/commit/586735109dc18f22bfdf3b73ab0621b37e857be1)
+- Removed phpcs for autogenerated files (endpoints)
+  [651c57b](https://github.com/elastic/elasticsearch-php/commit/651c57b2e6bf98a0fd48220949966e630e5a804a)
+
+## Release 7.13.1
+
+- Added port in url for trace and logger messages
+  [#1126](https://github.com/elastic/elasticsearch-php/pull/1126) 
+## Release 7.13.0
+
+- (DOCS) Added the HTTP meta data section
+  [#1143](https://github.com/elastic/elasticsearch-php/pull/1143)
+- Added support for API Compatibility Header
+  [#1142](https://github.com/elastic/elasticsearch-php/pull/1142)
+- (DOCS) Added Helpers section to PHP book
+  [#1129](https://github.com/elastic/elasticsearch-php/pull/1129)
+- Added the API description in phpdoc section for each endpoint
+  [9e05c81](https://github.com/elastic/elasticsearch-php/commit/9e05c8108b638b60cc676b6a4f4be97c7df9eb64)
+- Usage of PHPUnit 9 only + migrated xml configurations
+  [038b5dd](https://github.com/elastic/elasticsearch-php/commit/038b5dd043dc76b20b9f5f265ea914a38d33568d)
+
 ## Release 7.12.0
 
 - Updated the endpoints for ES 7.12 + removed cpliakas/git-wrapper