2.7.0 (#486)

* 2.7.0

* Update CHANGELOG.md

Co-authored-by: Javier Spagnoletti <phansys@gmail.com>

Co-authored-by: Javier Spagnoletti <phansys@gmail.com>

CHANGELOG.md

@@ -2,6 +2,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [2.7.0](https://github.com/sonata-project/exporter/compare/2.6.2...2.7.0) - 2021-06-27
+### Changed
+- [[#485](https://github.com/sonata-project/exporter/pull/485)] Clear entity manager every 100 results to improve ORM iterator performance ([@EmmanuelVella](https://github.com/EmmanuelVella))
+
 ## [2.6.2](https://github.com/sonata-project/exporter/compare/2.6.1...2.6.2) - 2021-04-09
 ### Fixed
 - [[#475](https://github.com/sonata-project/exporter/pull/475)] Allow `AbstractPropertySourceIterator::getValue()` to return `bool|int|float` value ([@VincentLanglet](https://github.com/VincentLanglet))