open-vm-tools 10.1.10 is available, see https://github.com/vmware/open-vm-tools/releases/tag/stable-10.1.10
See https://people.freebsd.org/~jpaetzel/open-vm-tools.tar.gz for the most recent version.
A commit references this bug: Author: jpaetzel Date: Tue Aug 29 16:43:49 UTC 2017 New revision: 448929 URL: https://svnweb.freebsd.org/changeset/ports/448929 Log: Update to 10.1.10 Improvements include: - Improved OS detection and reporting for FreeBSD 11 and 12. - Improved networking resume for DHCP FreeBSD guests. - Check for Xen, VirtualPC etc., only if VMware not detected. - Improve timesync when the offset is large. Full changelog is available at: https://github.com/vmware/open-vm-tools/blob/master/open-vm-tools/ChangeLog PR: 221194 Changes: head/emulators/open-vm-tools/Makefile head/emulators/open-vm-tools/distinfo head/emulators/open-vm-tools/files/patch-lib_hgfsServer_hgfsServerLinux.c head/emulators/open-vm-tools/files/patch-lib_include_guest__os.h head/emulators/open-vm-tools/files/patch-lib_misc_hostinfoPosix.c head/emulators/open-vm-tools/files/patch-modules_freebsd_vmmemctl_os.c head/emulators/open-vm-tools/files/patch-scripts_freebsd_network