diff --git a/README.md b/README.md
index b1db7ad..950fa4f 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ samples and therefore no precise sync could be achieved.
 
 ### Codebase
 
-The codebase is split into components and build on <b>ESP-IDF v4.3.1</b>. I still
+The codebase is split into components and build on <b>ESP-IDF v4.3.5</b>. I still
 have some refactoring on the todo list as the concept has started to settle and
 allow for new features can be added in a structured manner. In the code you
 will find parts that are only partly related features and still not on the task
@@ -181,6 +181,10 @@ Then on every `git commit`, a few sanity/formatting checks will be performed.
 - [ ] dsp_processor: add equalizer
  * Control interface for equalizer
 - [ ] clean and polish code (remove all unused variables etc.)
+- [ ] Improve Documentation, e.g. Hardware guide (supported codecs)
+- [ ] upgrade to IDF v5
+- [ ] in IDF v5 use native i2s driver, as it supports preloading DMA buffer with valid data now
+- [ ] Throw out ADF copied components from project tree and use CmakeLists.txt to pull in necessary files from ADF
 
 ## Minor task
   - [ok] soft mute - play sample in buffer with decreasing volume
diff --git a/doc/docker_build.md b/doc/docker_build.md
index 17e3295..396723f 100644
--- a/doc/docker_build.md
+++ b/doc/docker_build.md
@@ -37,11 +37,11 @@ Write `build/firmware.bin` to ESP32 at address 0x0000
 --------------------
 ### More details
 ```
-docker run 
+docker run
     --rm                            // Removes container after exit
     -it                             // runs interactive terminal
     -v .:/project                   // maps current directory to /project in container
     -w /project                     // sets working directory inside a container to /project
-    espressif/idf:v4.3.1            // image name + version
+    espressif/idf:v4.3.5            // image name + version
     idf.py menuconfig               // run menuconfig
-```
\ No newline at end of file
+```