8.0.0

CHANGES:

• Deprecate Ubuntu 21.10 (@tmcgilchrist #104)
• Various LCU Updates (@mtelvers #103 #98 #95 #93 #91 #89 #83)
• Add IBM-Z Docker images for Ubuntu (@mtelvers #102)
• Added RISCV64 (@mtelvers #100)
• Ubuntu LTS and current release is 22.04 (@dra27 #97)
• When compiling opam, build OCaml once using make compiler on the master
  branch of opam and then share this compiler with the release branches.
  Simultaneously circumvents the sigaltstack problems with OCaml < 4.13 on new
  releases, improves the build time of opam and reduces the carbon footprint of
  the base image builder! (@dra27 #85)
• Only compile bubblewrap from sources if the OS either doesn't distribute it or
  it's too old (@dra27 #85)
• Add Dockerfile_distro.bubblewrap_version to return the version of bubblewrap
  package in a given release (@dra27 #85)
• Change types for aliasing of distributions. The return type of
  Dockerfile_distro.resolve_alias is guaranteed not to include an alias but
  may require coercing back to Dockerfile_distro.t in some code. Similarly
  affects uses of some of the Windows functions in Dockerfile_distro
  (@dra27 #85)
• Move CentOS 8 to deprecated and change CentOS latest to V7! (@kit-ty-kate #88)
• Add OCaml 5.00 support (@dra27 #84)
• Add Alpine 3.15 (3.14 is now tier 2 and 3.13 is deprecated) (@talex5)
• Switch all GitHub access from git:// to https:// in advance of insecure protocol
  sunset (@kit-ty-kate #73)
• Fix dependencies of dockerfile-cmd: result now correctly used (@dra27 #72)
• Add Fedora 35 and make the latest (@dra27 #71)
• Move Ubuntu 21.04 to deprecated (@dra27 #71)
• Add Ubuntu 22.04 (@dra27 #71)
• Add Alpine 3.14 and Ubuntu 21.10 (@avsm)
• Move Fedora 33 and OpenSUSE 15.2 to deprecated and Alpine 3.13 to Tier 2. (@avsm)
• Latest Fedora is now Fedora 34 (@avsm)
• Asssume Windows x64 is an active distro even when it doesn't have the latest
  release (@dra27 #66; #68)
• Latest base distro is now Debian 11 (from Debian 10) (@kit-ty-kate #59)
• Ensure stray double-quotes don't end up in PATH on Windows images (@dra27 #62)
• Stop pinning binutils to 2.35 in Windows builds as that no longer works with
  GCC 11. (@dra27 #61)
• Introduce Windows 10 LTSC 2022 and Windows Server image (@MisterDA #63)
• Expose Dockerfile_distro.win10_docker_base_image and
  Dockerfile_distro.win10_base_tag to get the Windows container base
  image and tags. (@MisterDA #63)