diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index f03a6c3..e4461d1 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -5,17 +5,18 @@
 # Schema
 - [Addon Object](schema/root.md)
     - [AddonScript Object](schema/addonscript.md)
-    - [Version Object](schema/version.md)
-        - [File Object](schema/file.md)
-        - [Relation Object](schema/relation.md)
+    - [File Object](schema/file.md)
+        - [Install Object](schema/install.md)
+    - [Relation Object](schema/relation.md)
+    - [Conditions Object](schema/conditions.md)
     - [Repository Object](schema/repository.md)
-    - [Index Object](schema/index.md)
     - [Meta Object](schema/meta.md)
 
 # Concepts
 - [Installing](install.md)
 - [Flags](flags.md)
 - [URLs](url.md)
+- [Namespaces](namespaces.md)
 
 # Packaging
 - [Packaging](packaging/README.md)
diff --git a/docs/schema/index.md b/docs/schema/index.md
deleted file mode 100644
index ec97760..0000000
--- a/docs/schema/index.md
+++ /dev/null
@@ -1,25 +0,0 @@
-# Index Object
-
-```json
-{
-  "versions": {
-    "1.0": "https://example.json/mymod-1.0.json"
-  },
-  "addons": {
-    "othermod": "https://example.com/othermod.json"
-  }
-}
-```
-
-## Optional Properties
-
-### versions
-
-This is an object, with version numbers as keys and [URLs](../url.md) to AddonScript files as values. The AddonScript file which the URL
-points to must include the version number, which is the key in the map, and its addon ID must match the addon ID of the AddonScript
-file which includes the index object.
-
-### addons
-
-This is an object, with addon IDs as keys and [URLs](../url.md) to AddonScript files as values. The addon ID of the AddonScript file, to
-which the URL points, must match the key in the map.
diff --git a/docs/schema/meta.md b/docs/schema/meta.md
index 12ff292..c1664c1 100644
--- a/docs/schema/meta.md
+++ b/docs/schema/meta.md
@@ -1,7 +1,25 @@
 # Meta Object
 
-Meta objects can be included in [addon](root.md) and [version](version.md) objects. 
-They should be used to give information about the addon or the version, like a **name**,
-a **description** or a **changelog**. The specification does not require a specific format
-for meta objects, therefore you can add any property to it.
-It is however recommended to follow conventions for it.
+``` json
+{
+    "addon": {
+        "name": "My cool addon name",
+        "icon": "./icon.png",
+        "description":"./README.md",
+        "summary": "My Addon",
+        "website": "https://example.com",
+        "source": "https://gitea.com/user/myaddon",
+        "issues": "https://gitea.com/user/myaddon/issues",
+        "contributors": ["Alice", "Bob"]
+    },
+    "version": {
+        "changelog": "./CHANGELOG.md",
+        "timestamp": 1594753200
+    },
+    "additional": {}
+}
+```
+
+## Optional properties
+
+
diff --git a/docs/schema/relation.md b/docs/schema/relation.md
index 7e38f94..6a9128f 100644
--- a/docs/schema/relation.md
+++ b/docs/schema/relation.md
@@ -4,6 +4,7 @@
 {
   "id": "namespace:othermod",
   "version": "[1.0,)",
+  "repositories": ["repo1"],
   "flags": [],
   "conditions": {}
 }
@@ -17,10 +18,16 @@ This is the ID or namespaced ID of the addon this relation refers to.
 
 ### version
 
-This is a [maven version range](https://maven.apache.org/enforcer/enforcer-rules/versionRanges.html) of supported versions of this relation.
+This is a [semver version range](https://github.com/semver/semver/pull/584) of supported versions of this relation.
 
 ## Optional properties
 
+### repositories
+
+This is an array of [repository](repository.md) IDs. This are the repositories, from where AddonScript should try to get this relation from,
+in the order as they are ordered in the array. If this property is not set or the array is empty, AddonScript will try to resolve the relation by
+the namespace from all defined repositories.
+
 ### flags
 
 This is an array of [flags](../flags.md) for this relation. If this property is not present in a relation object, the relation
diff --git a/docs/schema/repository.md b/docs/schema/repository.md
index e8b1a64..03698fd 100644
--- a/docs/schema/repository.md
+++ b/docs/schema/repository.md
@@ -16,10 +16,11 @@ This is the ID of the repository. It has to be unique to the AddonScript file.
 
 ### type
 
-This is the type of the repository. Possible values are [`api`](../repository/api/README.md) or [`maven`](../repository/maven.md).
+This is the type of the repository. Possible values are [`api`](../repository/api/README.md), [`maven`](../repository/maven.md) or [`index`](../repository/index.md).
 
 ### url
 
 This is the base URL of the repository. While other URLs in AddonScript can have different schemes, 
-the base URL has to be a http(s) URL. If it is a maven repository the scheme can also be `file`, where
+the base URL has to be a http(s) URL, except for `index` and `maven` repositories, where it can also be `file`. 
+If it is a maven repository the scheme can also be `file`, where
 it points to a directory, which contains the maven repository.
diff --git a/docs/schema/root.md b/docs/schema/root.md
index d992c37..87dce01 100644
--- a/docs/schema/root.md
+++ b/docs/schema/root.md
@@ -4,10 +4,12 @@
 {
   "addonscript": {},
   "id": "myaddon",
-  "versions": [],
+  "namespace": "com.example",
+  "version": "1.0",
+  "files": [],
+  "relations": [],
+  "flags": ["server", "client"],
   "repositories": [],
-  "index": {},
-  "flags": {},
   "meta": {}
 }
 ```
@@ -20,29 +22,36 @@ This is an [AddonScript object](addonscript.md) containing information about the
 
 ### id
 
-This is the ID of your addon. It should only contain **lowercase letters, numbers and dashes**.
+This is the ID of the addon. It should only contain **lowercase letters, numbers and dashes**.
+
+### version
+
+This is the version number of this version. It must follow [semver version naming conventions](https://semver.org/spec/v2.0.0.html), 
+as they are used to compare versions.
 
 ## Optional properties
 
-### versions
+### namespace
 
-This is an array of [version objects](version.md). It is possible to define multiple versions of the addon in one AddonScript file,
-but in the most cases there should be just one version per file. Athough this property is optional, as you can define versions
-in the [index](index.md), it can be used to define a list of versions, which can be found in the index.
+This is the namespace of the addon. 
+
+### files
+
+This is an array of [file objects](file.md) including the files belonging to this version.
+
+### relations
+
+This is an array of [relation objects](relation.md) which represents related addons.
+
+### flags
+
+This is an array of [flags](../flags.md) for this version.
  
 ### repositories
 
 This is an array of [repository objects](repository.md). Each repository object defines one repository from which files or
 addons can be retrieved.
 
-### index
-
-This is an [index object](index.md) which includes links to other versions of this addon, or to other related addons.
-
-### flags
-
-Not yet specified
-
 ### meta
 
 This is a [meta object](meta.md).
diff --git a/docs/schema/version.md b/docs/schema/version.md
deleted file mode 100644
index 8c83fd0..0000000
--- a/docs/schema/version.md
+++ /dev/null
@@ -1,37 +0,0 @@
-# Version Object
-
-```json
-{
-  "version": "1.0",
-  "files": [],
-  "relations": [],
-  "flags": ["server", "client"],
-  "meta": {}
-}
-```
-
-## Required properties
-
-### version
-
-This is the version number of this version. It should follow [maven version naming conventions](https://docs.oracle.com/middleware/1212/core/MAVEN/maven_version.htm), 
-as they are used to comparing versions.
-
-## Optional properties
-
-### files
-
-This is an array of [file objects](file.md) including the files belonging to this version.
-
-### relations
-
-This is an array of [relation objects](relation.md) which represents related addons.
-
-### flags
-
-This is an array of [flags](../flags.md) for this version. If this property is not present in a version object, the version
-will have the flags which are set as default for versions.
-
-### meta
-
-This is a [meta object](meta.md).
diff --git a/docs/url.md b/docs/url.md
index 07e7f7a..f8095c4 100644
--- a/docs/url.md
+++ b/docs/url.md
@@ -18,7 +18,7 @@ In this example `com.example` it the namespace of the artifact, `someartifact` i
 `mvn://com.example/someartifact/1.0.jar` would also be a valid URL without an optional specifier.
 
 ## file
-```file://relative/path/to/file.jar```
+```./relative/path/to/file.jar```
 
-This URL scheme is a relative path to a file. It can only be used with [packaging](packaging/README.md)
+This is a relative path to a file. It can only be used with [packaging](packaging/README.md)
 or in some third-party environments, which are not covered by this specification.