From b1fd22f513c2bdad96440c167d45a4634e71e245 Mon Sep 17 00:00:00 2001
From: Ralf Handl <ralf.handl@sap.com>
Date: Wed, 22 Mar 2023 13:46:30 +0100
Subject: [PATCH 1/3] Register format decimal128

---
 registries/_format/decimal128.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 registries/_format/decimal128.md

diff --git a/registries/_format/decimal128.md b/registries/_format/decimal128.md
new file mode 100644
index 0000000000..db84bb7cbe
--- /dev/null
+++ b/registries/_format/decimal128.md
@@ -0,0 +1,27 @@
+---
+owner:
+issue:
+description: A decimal floating-point number with 34 significant decimal digits
+base_type: string number
+layout: default
+---
+
+# <a href="..">{{ page.collection }}</a>
+
+## {{ page.slug }} - {{ page.description }}
+
+Base type: `{{ page.base_type }}`.
+
+The `{{page.slug}}` format represents a [128-bit decimal floating-point number](https://en.wikipedia.org/wiki/Decimal128_floating-point_format) as defined by IEEE 754 2008 and ISO/IEC/IEEE 60559:2011.
+
+{% if page.issue %}
+### GitHub Issue
+
+* [#{{ page.issue }}](https://github.com/OAI/OpenAPI-Specification/issues/{{ page.issue }})
+{% endif %}
+
+{% if page.remarks %}
+### Remarks
+
+{{ page.issue }}
+{% endif %}

From 8208b827ebbfa579192fc07e2388609b1d20cef8 Mon Sep 17 00:00:00 2001
From: Ralf Handl <ralf.handl@sap.com>
Date: Thu, 23 Mar 2023 09:13:01 +0100
Subject: [PATCH 2/3] Update decimal128.md

---
 registries/_format/decimal128.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/registries/_format/decimal128.md b/registries/_format/decimal128.md
index db84bb7cbe..aff96bf292 100644
--- a/registries/_format/decimal128.md
+++ b/registries/_format/decimal128.md
@@ -2,7 +2,7 @@
 owner:
 issue:
 description: A decimal floating-point number with 34 significant decimal digits
-base_type: string number
+base_type: string, number
 layout: default
 ---
 

From 2b5729dd0a9cac52edf103b235173d296c5f5616 Mon Sep 17 00:00:00 2001
From: Ralf Handl <ralf.handl@sap.com>
Date: Thu, 23 Mar 2023 18:22:24 +0100
Subject: [PATCH 3/3] Apply Darrel's suggestions

---
 registries/_format/decimal128.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/registries/_format/decimal128.md b/registries/_format/decimal128.md
index aff96bf292..b04d92fb5c 100644
--- a/registries/_format/decimal128.md
+++ b/registries/_format/decimal128.md
@@ -14,6 +14,10 @@ Base type: `{{ page.base_type }}`.
 
 The `{{page.slug}}` format represents a [128-bit decimal floating-point number](https://en.wikipedia.org/wiki/Decimal128_floating-point_format) as defined by IEEE 754 2008 and ISO/IEC/IEEE 60559:2011.
 
+Representation as a JSON string is preferred as this avoids problems with recipients that parse JSON numbers into [binary64](https://en.wikipedia.org/wiki/Double-precision_floating-point_format) memory representation.
+
+String representation allows expressing the special values `NaN`, `-INF`, and `INF` that cannot be expressed as JSON numbers.
+
 {% if page.issue %}
 ### GitHub Issue