1.99.4

• modular decision framework for removals (removing stale, keeping
  active),
• grub2-mkconfig calling support.

1.99.3 (bugfix, re-do of 1.99.2)

• strip (compression) suffixes for version comparisons,
• fix reading kernel versions,
• fix numeric version sorting.

(the initial 1.99.2 release accidentally included debug code)

1.99.1 (bugfix)

• added options to override /boot and /lib/modules paths,
• improved directory processing order to be more resilient against /lib/modules removal failures,
• fixed SEGV on multiple uses of the same module directory.

1.99.0

First pre-release of the C++ rewrite. Capable of listing and removing old kernels. Supports std layout and sorting using version comparison or mtime.