* change ordering of changes

* fix version

* update definiton tutorial from 0.17.0 to 0.18.1

docs/tech/architecture/definitions/upgrade.md

@@ -27,9 +27,9 @@ If you want to upgrade the current definition to a new version, use the followin
 ## Example:
 
 * Current version: **0.12.1**
-* New version: **0.17.0**
+* New version: **0.18.1**
 
-* In the `config.yml` change the field `version` from 0.12.1 to 0.17.0.
+* In the `config.yml` change the field `version` from 0.12.1 to 0.18.1.
 
 ### 0.12.1 to 0.13.0
 1. In the [CHANGELOG](CHANGELOG.md), find the first subsequent definition version to the current version, which is, in this case, **0.13.0**.
@@ -85,6 +85,29 @@ If you want to upgrade the current definition to a new version, use the followin
 7. Check the `tools.yml` against the `tools.yml` structure in the [definition documentation](README.md).
 8. Check the `questionnaires.yml` against the `questionnaires.yml` structure in the [definition documentation](README.md).
 
+### 0.17.0 to 0.17.1
+1. In the [CHANGELOG](CHANGELOG.md), find the first subsequent definition version to the current version, which is, in this case, **0.17.1**.
+2. The change lies in adding embedding options into content fields. The change does not alter the current definition.
+3. Skip the change.
+
+### 0.17.1 to 0.17.2
+1. In the [CHANGELOG](CHANGELOG.md), find the first subsequent definition version to the current version, which is, in this case, **0.17.2**.
+2. Fixed embedding in email templates. No change is required.
+3. Skip the change.
+
+### 0.17.2 to 0.18.0
+1. In the [CHANGELOG](CHANGELOG.md), find the first subsequent definition version to the current version, which is, in this case, **0.18.0**.
+2. The first change is adding the `content` field to `default_response` in tools.
+3. Fix `default_response` according to [definition documentation](README.md).
+4. Check the `tools.yml` against the `tools.yml` structure in the [definition documentation](README.md).
+5. The second change lies in adding the optional field `requires_input` to `tools.yml`. This new feature allows you to use tools without input parameters. So, it is up to the designer if such a change is desired.
+6. Otherwise, skip the change.
+
+### 0.18.0 to 0.18.1
+1. In the [CHANGELOG](CHANGELOG.md), find the first subsequent definition version to the current version, which is, in this case, **0.18.1**.
+2. The change lies in adding an optional `note` to `questionnaires.yml`. This feature only adds additional information to questionnaires, so it is up to the designer.
+3. Otherwise, skip the change.
+
 * Create a new .zip archive and upload it to the IXP. 
 * The upload process will check the definition for errors.