Where can I find the 2019.6 SDK file?

Hi everybody, I am just getting started to PLC Next.

I have a AXC F 2152 v.2019.6 and I am learning how to use C++ realtime libraries in my projects, I have followed the tutorial videos and was able to install all requirements and write a test code in Eclipse, but when I try to download it to the PLC, PLC Next Engineer gives me this error about the library target. 
I don't have the 2019.6 target on my Eclipse, I have to install the 2019.6 SDK so I can add it to Eclipse, but I can't find it on the Phoenix page.
I don't have the intention on upload the PLC firmware right now, so, where can I find SDK version 2019.6 for windows x64?
Thanks.

Edit : Sorry, I mis-read the firmware version number in the original post …

Unfortunately older SDKs are removed from the download area as newer versions are released.
The best option in this case is to upgrade the firmware on the PLC to a version that is currently supported - i.e. FW 2020.0 LTS or later.
==================== 
Hello,
The SDK is part of the package that includes the Eclipse add-in:
![2020 08 24 8 13 18](/images/users/mboers/2020-08-24_8-13-18.jpg)
There is a similar package for Linux hosts, so please choose the one with "Windows" in the description.
After extracting the SDK from this package, you can install it through Eclipse.
Hope this helps.
~ Martin.