v1.16.2 v1.17.0

medium risk

sipeed/picoclawSep 10, 2026 → Sep 10, 20260 days between releases

What's New

Introduces support for 6.18 kernels, Graviton5, and transparent huge pages

New Features

  • Support for AWS Graviton5 instances
  • Support for booting `bzImage` guest kernels on x86_64
  • Transparent huge pages support via `madvise(MADV_HUGEPAGE)`
  • New metrics fields `emit_id` and `properties`
  • New `sync_snapshot_files` option for snapshot creation performance tuning

Improvements

  • New `sync_snapshot_files` option for snapshot creation performance tuning

Upgrade Notes

New configuration options include `huge_pages` and metrics fields like `emit_id` and `properties`. The API now supports `bzImage` kernels and the `huge_pages` field in snapshot loading. Ensure guest kernels are updated to version 6.18 for official support.

The Two Releases

v1.16.2

Firecracker v1.16.2

Sep 10, 2026· 1 month ago

A patch release addressing critical bugs in vsock RX delivery, virtio-mem memory mapping, and logger deadlock. It also bumps the snapshot format version to ensure compatibility and fix regressions.

Full release notes
v1.17.0

Firecracker v1.17.0

Sep 10, 2026· 1 month ago

This release introduces support for 6.18 guest kernels, transparent huge pages, and AWS Graviton5 instances. It adds capabilities for booting `bzImage` on x86_64 and introduces new metrics and snapshot control options.

Full release notes