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* Add changelog for 1.7.0-rc1

* Change position of refactoring of heatmap

* Refactoring some items in changelog

* Fix wrong PR title in changelog
Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Remove backported PRs
Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Fix wrong date
Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Add new PR to list

* Security fixes have been backported