From 4050494545308ac932de67b9e40ec8f74a452b3b Mon Sep 17 00:00:00 2001
From: Yongjing Zhang <zhangyongjing@huawei.com>
Date: Sat, 30 Jun 2018 16:53:36 +0800
Subject: [PATCH] adding a change-log section in the README

---
 README.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 09942bb..4a3de0f 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,21 @@ Note that this project runs under the 3-Clause BSD License. Read the [LICENSE](L
 
 Any contributions made to this project must comply with the aforementioned license.
 
+This version contains the following changes comparing to Version 3.0:
+1. Rename 'Device' to 'DeviceClass'
+2. Remove 'Module' to simplify the SDT model
+3. Introduced 'Product' for concrete model definition of real products.
+4. Support JSON serialization
+5. Support inheritance of 'DeviceClass'
+6. Enum type ...
+7. Data Type Facets ...
+8. ...
+
+*Editor's note: the current change log is just an examplary list (a projection), which lists some initial thoughts that the group is working on based on previous discussion. It needs to be revisited according to all implemented features before SDT4.0 publication.*
+
 ## Quick Introduction
 
-The Smart Device Template (SDT) is a template which is used to model the capabilities, actions and events of connected devices. The intent of the SDT is to be able to model any type of connected device using a well accepted and standardised format. The main application of SDT is to enable a uniformly structured Application Programmer’s Interface (API) to applications that need to interact with connected devices. Usually, these applications would communicate to devices using an Abstraction Layer as an intermediary logic. The Abstraction Layer „hides“ the technology-specific, native language format of devices of different technology type from the applications.
+The Smart Device Template (SDT) is a template which is used to model the capabilities, actions and events of connected devices. The intent of the SDT is to be able to model any type of connected device using a well accepted and standardised format. The main application of SDT is to enable a uniformly structured Application Programmer's Interface (API) to applications that need to interact with connected devices. Usually, these applications would communicate to devices using an Abstraction Layer as an intermediary logic. The Abstraction Layer "hides" the technology-specific, native language format of devices of different technology type from the applications.
 
 [Read the full Introduction.](SDT/schema4.0/docs/Introduction.md)
 
-- 
GitLab