We have been using TEZI with great success (awesome job guys!).
You are very welcome.
The TEZI images for TK1 L4T releases lists the L4T 21.7 | 2.8b3 as the latest release. Are there any plans to release a 2.8b4 release image?
Not really, no, as we are anyway about to release our regular 2.8b5 BSPs.
Or 2.8b5? If so, what are the targetted release dates?
Q4 for the regular BSPs. Updated L4T images probably Q1 2019. More information:
Otherwise are there any documented steps to generate the TEZI images from source?
Depending on what exactly you mean by “from source” as we do not have any sources of any NVIDIA proprietary parts (e.g. CUDA, graphics and multimedia). The base of L4T is Ubuntu ARM which you would need to inquire with Canonical how to go about building that from source. Other than that, it’s basically a combination of the following two articles on our developer website: