To install this package, run in Emacs:
M-x package-install RET package-fixes RET
This package fixes some critical bugs in package.el 1.0.1 which cause bad .elc files to be created during package upgrades when a macro changes. It is designed to be required as a dependency by packages whose installation is affected by these bugs. This package can be safely installed on Emacs >= 25, in which case it does nothing.