After the release of NuttX-9.0, there have been some build system changes that starting with NuttX-9.1 will likely break custom board configurations that people might have.
While the information is fresh in my head, I went ahead and created on Confluence a page to start working on our next Release Notes for 9.1, and I added the information (as well as what people with custom boards need to do when upgrading to NuttX-9.1). That can be found at [1]. I'd like to ask the community to please try to keep those release notes updated as changes are developed. This way, it will be much easier when release time comes around, which is going to be soon! To stay on a 2-month release schedule like we did pre-ASF, we will need to start the release process in about a month. [1] https://cwiki.apache.org/confluence/display/NUTTX/NuttX+9.1 Cheers, Nathan