Changelog for vagrant-vbguest-doc-0.31.0-1.3.x86_64.rpm :

* Mon Aug 12 2019 Dan Čermák - Update to 0.19.0 0.19.0 (2019-07-09) Relax version pin on micormachine dependency. Allow 2.x to 3.x. AATTjohanneskastl [GH-341] 0.18.0 (2019-05-20) Fix Linux kernel module detection for VirtuaBox >= 6.0.6. AATTcarlosefr [GH-334]
* Mon Apr 01 2019 Dan Čermák - Initial package version