We shipped Firecracker v1.7.0

Here at fly.io, we want your apps to use up-to date hypervisors for the best security and performance. All new and updated machines will use Firecracker v1.7.0 resulting in improved I/O performance.

Depending on your workload, you may see up to 10-15% improved block I/O performance and an improved network performance due to the improvements in firecracker device emulation.

We also shipped new internal tooling that gives our infrastructure team the ability to feature flag firecracker release roll-outs. This will allow us to ship firecracker updates faster!