This is a low volume list that provides important announcements regarding LLVM. It gets email about once a month.
This list is for people who want to be included in technical discussions of LLVM. People post to this list when they have questions about writing code for or using the LLVM tools. It is relatively low volume.
This list gets emailed every time a bug is opened and closed, and when people submit patches to be included in LLVM. It is higher volume than the LLVMdev list.
This list contains all commit messages that are made when LLVM developers commit code changes to the repository. It is useful for those who want to stay on the bleeding edge of LLVM development. This list is very high volume.
A message is automatically sent to this list by every active nightly tester when it completes. As such, this list gets email several times each day, making it a high volume list.