diff --git a/Backends.md b/Backends.md
new file mode 100644
index 0000000..a027c72
--- /dev/null
+++ b/Backends.md
@@ -0,0 +1,45 @@
+## Backends
+
+Human library includes pre-bundled `CPU`, `WASM` and `WebGL` backends, there is no need to load them externally.
+
+<br>
+
+### Notes:
+
+- CPU backend usage is not recommended for performance reasons  
+  as TensorFlow implementation in JavaScript is by far the slowest
+- WebGL backend usage is fastest on systems with modern GPU  
+  although startup speed is a bit slower
+- WASM backend has good resuts under specific conditions:
+  - Enable WASM SIMD support in your browser  
+    (CPU parallel processing instructions)
+  - Reduce size of input image (e.g. webcam)  
+    as WASM does not have optimized image extraction methods
+
+#### How to enable WASM SIMD support
+
+Chrome:
+- Navigate to <chrome://flags>
+- `WebAssembly SIMD support` set to Enabled
+
+Edge:
+- Navigate to <chrome://flags>
+- `WebAssembly SIMD support` set to Enabled
+
+Firefox:
+- Navigate to <about:config>
+- `javascript.options.wasm_simd` set to True
+
+<br>
+
+### Known Issues:
+
+- **WASM** backend without SIMD has limited processing capabilities before it causes issues  
+  To avoid issues, start `human` with most models disabled and if needed, enable them one by one as each initializes  
+  Typical errors messages are:  
+  `Uncaught (in promise) Error: undefined tfjs-backend-wasm.wasm` or  
+  `RuntimeError: memory access out of bounds in tfjs-backend-wasm.wasm`
+- **NodeJS** backend is missing key operatios and thus neither `Face` nor `Hand` models are currently supported
+
+<br>
+
diff --git a/Change-Log.md b/Change-Log.md
index d03997a..23bb4c5 100644
--- a/Change-Log.md
+++ b/Change-Log.md
@@ -1,7 +1,7 @@
 
 # @vladmandic/human  
 
-Version: **0.8.3**  
+Version: **0.8.5**  
 Description: **human: 3D Face Detection, Body Pose, Hand & Finger Tracking, Iris Tracking, Age & Gender Prediction, Emotion Prediction & Gesture Recognition**  
 
 Author: **Vladimir Mandic <mandic00@live.com>**  
@@ -10,7 +10,12 @@ Repository: **<git+https://github.com/vladmandic/human.git>**
 
 ## Changelog
 
-### **HEAD -> main, origin/main, origin/HEAD** 2020/11/09 mandic00@live.com
+### **0.8.5** 2020/11/09 mandic00@live.com
+- reimplemented blazeface processing
+
+### **0.8.4** 2020/11/09 mandic00@live.com
+- added additional gestures
+- implemented blink detection
 - fix wasm module
 
 ### **0.8.3** 2020/11/08 mandic00@live.com
diff --git a/Demos.md b/Demos.md
index 74b44a3..495f724 100644
--- a/Demos.md
+++ b/Demos.md
@@ -63,19 +63,6 @@ found 0 vulnerabilities
 2020-11-06 16:19:16 DATA:  GET/2.0 200 text/javascript 1708910 /dist/demo-browser-index.js ::ffff:192.168.0.200
 ```
 
-### WASM and WebGPU
-
-While `CPU` and `WebGL` backends are included in the bundle, `WASM` and `WebGPU` are not to keep the size at minimum  
-
-If you want to use `WASM` (supported) or `WebGPU` (experimental) backends  
-enable loading of required modules in `index.html`:
-
-```html
-<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs@2.7.0/dist/tf.es2017.js">
-<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-backend-wasm@2.7.0/dist/tf-backend-wasm.es2017.js">
-<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-backend-webgpu@0.0.1-alpha.0/dist/tf-webgpu.js">
-```
-
 <br>
 
 **NodeJS**:
diff --git a/Home.md b/Home.md
index 7edf39a..24ecf34 100644
--- a/Home.md
+++ b/Home.md
@@ -16,12 +16,13 @@
 ### Wiki pages:
 
 - [**Home**](https://github.com/vladmandic/human/wiki)
+- [**Demos**](https://github.com/vladmandic/human/wiki/Demos)
 - [**Installation**](https://github.com/vladmandic/human/wiki/Install)
 - [**Usage**](https://github.com/vladmandic/human/wiki/Usage)
+- [**Usage**](https://github.com/vladmandic/human/wiki/Backends)
 - [**Configuration**](https://github.com/vladmandic/human/wiki/Configuration)
 - [**Outputs**](https://github.com/vladmandic/human/wiki/Outputs)
 - [**Gesture Recognition**](https://github.com/vladmandic/human/wiki/Gesture)
-- [**Demos**](https://github.com/vladmandic/human/wiki/Demos)
 - [**Development Server**](https://github.com/vladmandic/human/wiki/Development-Server)
 - [**Build Process**](https://github.com/vladmandic/human/wiki/Build-Process)
 - [**Profiling**](https://github.com/vladmandic/human/wiki/Profiling)
diff --git a/Install.md b/Install.md
index b7b0f55..d1b48fc 100644
--- a/Install.md
+++ b/Install.md
@@ -1,8 +1,15 @@
 ## Installation
 
+<br>
+
 **Important**  
-*The packaged (IIFE and ESM) version of `Human` includes `TensorFlow/JS (TFJS) 2.7.0` library which can be accessed via `human.tf`*  
-*You should NOT manually load another instance of `tfjs`, but if you do, be aware of possible version conflicts*  
+
+*The packaged version of `Human` includes `TensorFlow/JS (TFJS) 2.7.0` library which can be accessed via `human.tf`*  
+
+*You should NOT manually load another instance of `tfjs` unless you're using specific `.nobudle` edition of `Human, 
+but if you do, be aware of possible version conflicts*  
+
+<br>
 
 There are multiple ways to use `Human` library, pick one that suits you:
 
@@ -25,6 +32,7 @@ Defaults:
     "browser": "dist/human.esm.js",
   }
 ```
+
 <br>
 
 ### 1. [IIFE](https://developer.mozilla.org/en-US/docs/Glossary/IIFE) script