CHANGELOG.md in rakuten_web_service-1.0.0.rc1 vs CHANGELOG.md in rakuten_web_service-1.0.0

@@ -1,19 +1,32 @@
+# v1.0.0
+
+## Enhancements
+
+* Upgrade the version of RSpec and refactoring the configuration. [#36](https://github.com/rakuten-ws/rws-ruby-sdk/pull/36) and [#37](https://github.com/rakuten-ws/rws-ruby-sdk/pull/36)
+
 # v1.0.0.rc1
 
 ## Enhancements
 
-* Start supporting Gora APIs. Thank you for your contribution @kamatama41 .[#29](https://github.com/rakuten-ws/rws-ruby-sdk/pull/29)
-* Start supporting Recipe APIs.
-* Update versions of supported Rakuten Web Service APIs.
+* Started supporting Gora APIs by @kamatama41 .[#29](https://github.com/rakuten-ws/rws-ruby-sdk/pull/29)
+* Started supporting Recipe APIs. [#31](https://github.com/rakuten-ws/rws-ruby-sdk/pull/31)
+* Updated versions of supported Rakuten Web Service APIs.
 
 ## Compatibility Changes
 
-* Supported Ruby versions are 2.1.0 or later
+* Updated supported Ruby versions to 2.1.0 or later
 * Any resource's `search` such as `RakutenWebService::Ichiba::Item` returns Enumerator which provides resources fetched at one page.
   It used to provide all resources by auto-pagerize. From this version provides methods for pagerizing. Please refer to [the sample in README](https://github.com/rakuten-ws/rws-ruby-sdk/blob/master/README.md#pagerizing).
+* Deprecated calling `RakutenWebService.configuration` with a block, recommending to use `RakutenWebService.configure`.
 
-# v0.6.3 
+## Thanks
+
+At first, I should appreciate all users of the gems.
+One of the enhancements, supporting Gora APIs, is realized by @kamatama41 's seminal work.
+Thank you for your contribution!
+
+# v0.6.3
 
 * Update a gem dependency by @45deg
 * Fix typo by @45deg
 * Add new section for `Prerequisites` to explaing how to get new Application ID for Rakuten Web Service.
 * `RakutenWebService::BaseGenre.[]` fetches the genre information of specified a given genrecode.