diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48e96210..b1a4ce1b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Deprecated
### Removed
+- Remove stac_version and stac_extensions fields in ItemCollection
### Fixed
diff --git a/core/commons.yaml b/core/commons.yaml
index e12b2ce6..0ab1f189 100644
--- a/core/commons.yaml
+++ b/core/commons.yaml
@@ -600,8 +600,8 @@ components:
example:
stac_version: 1.0.0
stac_extensions:
- - eo
- - view
+ - 'https://stac-extensions.github.io/eo/v1.0.0/schema.json'
+ - 'https://stac-extensions.github.io/view/v1.0.0/schema.json'
- 'https://example.com/cs-extension/1.0/schema.json'
type: Feature
id: CS3-20160503_132131_05
diff --git a/fragments/filter/README.md b/fragments/filter/README.md
index 8f83c539..ea236d0c 100644
--- a/fragments/filter/README.md
+++ b/fragments/filter/README.md
@@ -627,9 +627,9 @@ A sample STAC Item (excluding `assets`) is:
"type": "Feature",
"stac_version": "1.0.0",
"stac_extensions": [
- "eo",
- "view",
- "proj"
+ "https://stac-extensions.github.io/eo/v1.0.0/schema.json",
+ "https://stac-extensions.github.io/view/v1.0.0/schema.json",
+ "https://stac-extensions.github.io/projection/v1.0.0/schema.json"
],
"id": "S2A_60HWB_20201111_0_L2A",
"bbox": [ 176.9997779369264, -39.83783732066656, 178.14624317719924, -38.842842449352425],
diff --git a/fragments/itemcollection/README.md b/fragments/itemcollection/README.md
index 706c6c48..5b186ccb 100644
--- a/fragments/itemcollection/README.md
+++ b/fragments/itemcollection/README.md
@@ -21,23 +21,10 @@ This object describes a STAC ItemCollection. The fields `type` and `features` ar
| Field Name | Type | Description |
| --------------- | --------------------------------------- | ----------- |
-| stac_version | string | **REQUIRED.** The STAC version the ItemCollection implements. |
-| stac_extensions | \[string\] | A list of extensions the ItemCollection implements. |
| type | string | **REQUIRED.** Always "FeatureCollection" to provide compatibility with GeoJSON. |
| features | [STAC Item](../../stac-spec/item-spec/item-spec.md) | **REQUIRED** A possibly-empty array of Item objects. |
| links | [Link Object](../../stac-spec/item-spec/item-spec.md#link-object) | An array of Links related to this ItemCollection. |
-**stac_version**: In general, STAC versions can be mixed, but please keep the [recommended best
-practices](../../stac-spec/best-practices.md#mixing-stac-versions) in mind.
-
-**stac_extensions**: A list of STAC content extensions the ItemCollection implements. The list contains URLs to the JSON Schema files it
-can be validated against. For official [STAC extensions](https://stac-extensions.github.io/#list-of-stac-extensions), a "shortcut"
-can be used. This means you can specify the folder name of the extension, for example `single-file-stac` for the Single File
-STAC extension. This does *not* apply for [API extensions](../../extensions.md). If the versions of the extension and the item diverge,
-you can specify the URL of the JSON schema file. This list must only contain extensions that extend the ItemCollection itself, see the
-the 'Scope' column in the list of extensions. It must not contain extensions that extend the Item objects, these must be specified in the
-Item object directly.
-
## Extensions
- The [Context Extension](../../item-search/README.md#context) adds additional fields to STAC ItemCollection relevant
diff --git a/fragments/itemcollection/examples/itemcollection-sample-full.json b/fragments/itemcollection/examples/itemcollection-sample-full.json
index a9aefbff..dad0c18b 100644
--- a/fragments/itemcollection/examples/itemcollection-sample-full.json
+++ b/fragments/itemcollection/examples/itemcollection-sample-full.json
@@ -1,6 +1,4 @@
{
- "stac_version": "1.0.0",
- "stac_extensions": [],
"type": "FeatureCollection",
"features": [
{
diff --git a/fragments/itemcollection/examples/itemcollection-sample-minimal.json b/fragments/itemcollection/examples/itemcollection-sample-minimal.json
index 63a5d5b5..8b3698fa 100644
--- a/fragments/itemcollection/examples/itemcollection-sample-minimal.json
+++ b/fragments/itemcollection/examples/itemcollection-sample-minimal.json
@@ -1,6 +1,4 @@
{
- "stac_version": "1.0.0",
- "stac_extensions": [],
"type": "FeatureCollection",
"features": []
}
diff --git a/fragments/itemcollection/openapi.yaml b/fragments/itemcollection/openapi.yaml
index 07347eca..6d0f92df 100644
--- a/fragments/itemcollection/openapi.yaml
+++ b/fragments/itemcollection/openapi.yaml
@@ -11,14 +11,9 @@ components:
A GeoJSON FeatureCollection augmented with foreign members that contain values relevant to a STAC entity
type: object
required:
- - stac_version
- features
- type
properties:
- stac_version:
- $ref: '../../core/commons.yaml#/components/schemas/stac_version'
- stac_extensions:
- $ref: '../../core/commons.yaml#/components/schemas/stac_extensions'
type:
type: string
enum: