No regressions on SBCL, linux: http://common-lisp.net/project/cl-test-grid/asdf/asdf-diff-27.html
This is a diff between ASDF commit 28a5c93 also known as ASDF 3.1.0.46 and the latest ASDF 3.1.0.53 This means all the ASDF systems from Quicklisp which were loading successfully at that system still load successfully.
