v0.21.0

0.21.0 (2026-10-02)

Features

• daemon: let ksm merge guest memory when the host opts in (2c488d0)
• daemon: log an adopted vm that keeps the ksm flag with ksm off (4399bc6)
• deploy: add bootstrap --ksm for bare-metal hosts (3ad5bdc)
• deploy: add bootstrap --no-ksm (6162034)
• host: add ksm-exec to start firecracker mergeable (e25bc7f)

Bug Fixes

• daemon: check a restore's split guest memory whole on 6.10-6.11 (60c9c17)
• daemon: keep ksm headroom from the vms' own profit (437a723)
• deploy: unmerge ksm's pages on --no-ksm (b32b440)