From 300b58093b0d675e2691bf673510c130521c89e6 Mon Sep 17 00:00:00 2001
From: Daniel Tschinder <code@tschinder.de>
Date: Fri, 22 Jun 2018 15:45:21 +0200
Subject: [PATCH 1/2] Add one more breaking change in 0.12

---
 UPGRADE.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/UPGRADE.md b/UPGRADE.md
index 55c3f0f..8d8e219 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -10,6 +10,23 @@ Exception inside `parseLiteral()`, `parseValue()` and `serialize()`.
 
 Returning null from any of these methods will now be treated as valid result.
 
+### Breaking: Custom scalar types parseLiteral() declaration changed
+A new parameter was added to `parseLiteral()`, which also needs to be added to any custom scalar type extending from `ScalarType`
+
+Before:
+```php
+public function parseLiteral($valueNode) {
+    //custom implementation
+}
+```
+
+After:
+```php
+public function parseLiteral($valueNode, array $variables = null) {
+    //custom implementation
+}
+```
+
 ### Breaking: Descriptions in comments are not used as descriptions by default anymore
 Descriptions now need to be inside Strings or BlockStrings in order to be picked up as
 description. If you want to keep the old behaviour you can supply the option `commentDescriptions`

From 3a4f520da70b299023fa5995836541d17a53e742 Mon Sep 17 00:00:00 2001
From: Daniel Tschinder <daniel@tschinder.de>
Date: Fri, 22 Jun 2018 15:46:42 +0200
Subject: [PATCH 2/2] Improve example

---
 UPGRADE.md | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/UPGRADE.md b/UPGRADE.md
index 8d8e219..c9e2443 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -15,15 +15,25 @@ A new parameter was added to `parseLiteral()`, which also needs to be added to a
 
 Before:
 ```php
-public function parseLiteral($valueNode) {
-    //custom implementation
+class MyType extends ScalarType {
+
+    ...
+
+    public function parseLiteral($valueNode) {
+        //custom implementation
+    }
 }
 ```
 
 After:
 ```php
-public function parseLiteral($valueNode, array $variables = null) {
-    //custom implementation
+class MyType extends ScalarType {
+
+    ...
+
+    public function parseLiteral($valueNode, array $variables = null) {
+        //custom implementation
+    }
 }
 ```