v1.16.2 v1.17.0
qdm12/dnsSep 10, 2026 → Sep 10, 20260 days between releases
What's New
Adds support for Graviton5, Linux 6.18, and bzImage with transparent huge pages and improved metrics.
New Features
- Official support for AWS Graviton5 instances.
- Official support for Linux 6.18 kernels.
- bzImage guest kernel support on x86_64.
- Virtio device reset support.
- New metrics fields (`emit_id` and `properties`).
Improvements
- Improved metrics reporting with new fields.
Bug Fixes
- Fixed vsock RX delivery issues.
- Fixed virtio-mem mapping bugs.
Upgrade Notes
Configure the new `huge_pages` field in snapshot load requests if using transparent huge pages. Enable optional metrics fields `emit_id` and `properties` via config file or API. bzImage support is automatic; no configuration changes required.
The Two Releases
Firecracker v1.16.2
Sep 10, 2026· 1 month ago
This patch release fixes critical bugs in vsock, virtio-mem, and the logger, while bumping the snapshot format version which introduces incompatibility with previous versions.
Full release notesFirecracker v1.17.0
Sep 10, 2026· 1 month ago
Firecracker v1.17.0 adds significant enhancements including support for newer kernels and hardware (Graviton5, bzImage), transparent huge pages, and improved metrics reporting, alongside various bug fixes for vsock and virtio-mem.
Full release notes