Deprecated Features

The following functionality of Firecracker is deprecated, and will be removed in a future major Firecracker release, in accordance with our release policy.

• [#2763] The vsock_id body field in PUT requests on /vsock
• [#2980] The mem_file_path body field in PUT requests on /snapshot/load
• [#2973] MicroVM Metadata Service v1 (MMDSv1)
• [#4126] Static CPU templates
• [#4209] The rebase-snap tool
• [#4500] The --start-time-cpu-us and --start-time-us CLI arguments
• [#4428] Booting microVMs using MPTable and command line parameters for VirtIO devices. The functionality is substituted with ACPI.
• [#2628] The --basic parameter of seccompiler-bin.
• [#5274]: The enable_diff_snapshots body field in PUT requests on /snapshot/load