From cd71b148d87de2e59a9b0804c8086c232dfc066a Mon Sep 17 00:00:00 2001
From: Stuart Chinery <stuart.chinery@boxt.co.uk>
Date: Wed, 18 Oct 2023 09:14:48 +0100
Subject: [PATCH] Bumped to 1.9.0 and updated UPGRADING.md

---
 CHANGELOG.md         | 11 ++++++++---
 README.md            |  4 ++--
 UPGRADING.md         | 14 ++++++++++++++
 lib/grape/version.rb |  2 +-
 4 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index eacba39b7e..4968c50856 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,14 +1,19 @@
-### 1.8.1 (Next)
+### 1.9.1 (Next)
 
 #### Features
 
-* [#2353](https://github.com/ruby-grape/grape/pull/2353): Added Rails 7.1 support - [@ericproulx](https://github.com/ericproulx).
-* [#2355](https://github.com/ruby-grape/grape/pull/2355): Set response headers based on Rack version - [@schinery](https://github.com/schinery).
 * Your contribution here.
 
 #### Fixes
 
 * Your contribution here.
+* 
+### 1.9.0 (2023/10/18)
+
+#### Features
+
+* [#2353](https://github.com/ruby-grape/grape/pull/2353): Added Rails 7.1 support - [@ericproulx](https://github.com/ericproulx).
+* [#2355](https://github.com/ruby-grape/grape/pull/2355): Set response headers based on Rack version - [@schinery](https://github.com/schinery).
 
 ### 1.8.0 (2023/08/30)
 
diff --git a/README.md b/README.md
index b0fe3375f5..365bd1b7ea 100644
--- a/README.md
+++ b/README.md
@@ -160,9 +160,9 @@ content negotiation, versioning and much more.
 
 ## Stable Release
 
-You're reading the documentation for the next release of Grape, which should be **1.8.1**.
+You're reading the documentation for the next release of Grape, which should be **1.9.1**.
 Please read [UPGRADING](UPGRADING.md) when upgrading from a previous version.
-The current stable release is [1.8.0](https://github.com/ruby-grape/grape/blob/v1.8.0/README.md).
+The current stable release is [1.9.0](https://github.com/ruby-grape/grape/blob/v1.9.0/README.md).
 
 
 ## Project Resources
diff --git a/UPGRADING.md b/UPGRADING.md
index 620e1d6ec9..329dd35315 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -1,6 +1,20 @@
 Upgrading Grape
 ===============
 
+### Upgrading to >= 1.9.0
+
+#### Response Headers
+
+For Rack >= 3 the following response headers are returned lowercase:
+
+* `content-type`
+* `x-cascade`
+
+For Rack < 3 the following response headers are returned capitalized:
+
+* `Content-Type`
+* `X-Cascade`
+
 ### Upgrading to >= 1.7.0
 
 #### Exceptions renaming
diff --git a/lib/grape/version.rb b/lib/grape/version.rb
index d0632f9dfd..9b8501a1ed 100644
--- a/lib/grape/version.rb
+++ b/lib/grape/version.rb
@@ -2,5 +2,5 @@
 
 module Grape
   # The current version of Grape.
-  VERSION = '1.8.1'
+  VERSION = '1.9.0'
 end