I typically release the projects I create under the BSD-3-Clause license, but also don't generally create a project which is "mine" using substantial parts of someone else's code. (Contributing to someone else's project is different; it's theirs, so they get to use whatever license they want, even for the code I contribute to them.)
This time, however, I want to take some code released under the BSD-2-Clause license, heavily modify it (but not what it fundamentally does), and incorporate it into a new project with a similar-but-different purpose. To keep things simple, I want to release the entire project under just one license.
My question is, am I able to use the BSD-3-Clause as that license? If it isn't permissible to re-release BSD-2-Clause code under the BSD-3-Clause license, I'll release my modifications (and the rest of the project) under the BSD-2-Clause, but it would be nice to stick with my preferred license.
I've done a bit of web searching on the subject, but turned up almost nothing. I appreciate any help or insights you can provide!