Release candidate 5, with patchlevel 3

The current library version is 0.5.3 (not final).

Release candidate 5, with patchlevel 2

The current library version is 0.5.2 (not final).

Release candidate 5, with patchlevel 1

The current library version is 0.5.1 (not final, release candidate 5, with patchlevel 1).

Release candidate 5, with patchlevel 0

Library version 0.5.0 (not final, release candidate 5, with patchlevel 0).

Release candidate 4, with patchlevel 3

The current library version is 0.4.3 (not final, release candidate 4, with patchlevel 3).