Update changelog

CHANGELOG.md

@@ -7,14 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
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-## [1.0.0]() - _2021-10-05_
+## [1.2.0]() - _2021-07-01_
 
 ### Added
 
-* Taken https://github.com/goprerender/prerender as a base
-* Added support to pass `STORAGE_URL` environment variable
-* Dockerized goprerender server and storage
-* Added docker-compose example and Makefile commands for faster setup
+* Added support to pass `CACHE_EXPIRATION_TIME` environment variable
+
+### Changed
+
+* Only the `Clear-Site-Data: *` header purges all cache now
+* The `Cache-Control: must-revalidate` header removes only one page instead of flushing all caches
 
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@@ -26,3 +28,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   prerender request
 
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+
+## [1.0.0]() - _2021-10-05_
+
+### Added
+
+* Taken https://github.com/goprerender/prerender as a base
+* Added support to pass `STORAGE_URL` environment variable
+* Dockerized goprerender server and storage
+* Added docker-compose example and Makefile commands for faster setup
+
+-------------------------------------------------------------------------