firecracker Releases

Fixed a bug regarding the handling of kernel command line parameters when init arguments are provided via the `boot_args` field.

Nov 30, 2022

Upgraded the Rust toolchain to version 1.64.0 and fixed the kernel command line parameter handling bug.

Nov 24, 2022

Patched a self-DoS vulnerability in the virtio-queue code by terminating execution when descriptor counts exceed queue size.

Oct 10, 2022

Patched a self-DoS vulnerability in the virtio-queue code by terminating execution when descriptor counts exceed queue size.

Oct 10, 2022

Oct 3, 2022

Oct 3, 2022

Added the `T2S` CPU template and improved the robustness of the `T2` template by explicitly disabling additional CPUID flags.

Jul 29, 2022

Added PATCH support for resetting `cpu_template`, a `rebase-snap` tool, and memory backend support (`File`/`Uffd`). MmdsV2 became Generally Available, while MmdsV1 was deprecated.

May 6, 2022

Initial stable release featuring cgroup v1/v2 support, MMDS improvements, kernel 5.10 support, and an async block IO engine (developer preview).

Jan 31, 2022

This release addresses compatibility issues with kernel 5.10 by updating CPU templates to properly mask specific features and fixes a bug regarding the propagation of kernel command line parameters.

Nov 24, 2021

This update introduces a configuration parameter to limit HTTP API payload sizes and MMDS data store limits, alongside cleanup improvements to environment variables in the Jailer.

Nov 5, 2021

This minor release focuses on dependency management by updating a previously yanked third-party library.

Aug 24, 2021

A major feature release introducing extensive API and configuration enhancements, including seccomp filter customization, GICv2 snapshot support, and resource limiting, while migrating Docker images to Amazon ECR.

Aug 13, 2021

This release fixes a critical issue where seccomp filters were incorrectly blocking system calls required for Rust panic handling.

Jul 23, 2021

Similar to v0.24.5, this patch addresses a bug where seccomp filters prevented the necessary system calls for panic handling.

Jul 23, 2021

This update improves snapshot reliability and fixes a race condition in VCPU threads, alongside the migration of Docker images to Amazon ECR.

May 25, 2021

This release resolves a race condition that could cause segmentation faults during VCPU initialization and ensures SSBD mitigation is correctly enabled on aarch64 architectures.

May 25, 2021

This release focuses on snapshot consistency and API naming standards by migrating Docker images to Amazon ECR and fixing data storage flushing.

May 11, 2021

This patch release addresses a critical stability issue where the SIGPIPE signal handler caused the Firecracker process to exit unexpectedly, ensuring the microVM remains stable.

Feb 19, 2021

This patch fixes the SIGPIPE signal handling behavior to prevent Firecracker from exiting unexpectedly when encountering broken pipes.

Feb 19, 2021