According to FreeBSD.org, the first BETA of FreeBSD 11.2 is now available for testing. You may download the ISO/image files from the link in the description.

  • 19 May: The first BETA build for the FreeBSD 11.2 release cycle is now available. ISO images for the amd64, armv6, arm64, i386, powerpc, powerpc64 and sparc64 architectures are available on most of our FreeBSD mirror sites.

  • The first BETA build of the 11.2-RELEASE release cycle is now available.
    
    Installation images are available for:
    
    o 11.2-BETA1 amd64 GENERIC
    o 11.2-BETA1 i386 GENERIC
    o 11.2-BETA1 powerpc GENERIC
    o 11.2-BETA1 powerpc64 GENERIC64
    o 11.2-BETA1 sparc64 GENERIC
    o 11.2-BETA1 armv6 BEAGLEBONE
    o 11.2-BETA1 armv6 CUBIEBOARD
    o 11.2-BETA1 armv6 CUBIEBOARD2
    o 11.2-BETA1 armv6 CUBOX-HUMMINGBOARD
    o 11.2-BETA1 armv6 RPI-B
    o 11.2-BETA1 armv6 RPI2
    o 11.2-BETA1 armv6 PANDABOARD
    o 11.2-BETA1 armv6 WANDBOARD
    o 11.2-BETA1 aarch64 GENERIC
    
    Note regarding arm/armv6 images: For convenience for those without
    console access to the system, a freebsd user with a password of
    freebsd is available by default for ssh(1) access.  Additionally,
    the root user password is set to root.  It is strongly recommended
    to change the password for both users after gaining access to the
    system.

FreeBSD 11.2-BETA1 Now Available: https://lists.freebsd.org/pipermail/freebsd-stable/2018-May/088899.html

FreeBSD.org: https://www.freebsd.org/news/newsflash.html#event20180519:01

Phoronix: https://www.phoronix.com/scan.php?page=news_item&px=FreeBSD-11.2-Beta-Released