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| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 3f8edd953d..befd4e08c0 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -85,6 +85,17 @@ Rails 6.1. You are encouraged to enable `config.force_ssl` to enforce HTTPS connections throughout your application. If you need to exempt certain endpoints from redirection, you can use `config.ssl_options` to configure that behavior. +### Purpose in signed or encrypted cookie is now embedded in the cookies values + +To improve security, Rails now embeds the purpose information in encrypted or signed cookies value. +Rails can now thwart attacks that attempt to copy signed/encrypted value +of a cookie and use it as the value of another cookie. + +This new embed information make those cookies incompatible with versions of Rails older than 6.0. + +If you require your cookies to be read by 5.2 and older, or you are still validating your 6.0 deploy and want +to allow you to rollback set +`Rails.application.config.action_dispatch.use_cookies_with_metadata` to `false`. Upgrading from Rails 5.1 to Rails 5.2 ------------------------------------- |