v0.6.4

punkpeye/fastmcpv0.6.4Jul 5, 2026by github-actions[bot]

AI Summary

Enhances sandbox management with live resizing capabilities and improves CLI visibility of sandbox states and resources.

Key Highlights

Live modify and resize for running sandboxes
CLI show sandbox state in metrics and add watch/follow modes
CLI show resource allocations in msb ps
Fixed network handling for fragmented UDP and PMTU relay traffic

New Features

Live sandbox resize/modify
CLI watch/follow modes
CLI resource allocation display
Fragmented UDP handling fix

Full Release Notes

## What's Changed
* chore(deps): Bump cmov from 0.5.3 to 0.5.4 in the cargo group across 1 directory by @dependabot[bot] in https://github.com/superradcompany/microsandbox/pull/1096
* chore: refresh npm lockfile after v0.6.3 by @github-actions[bot] in https://github.com/superradcompany/microsandbox/pull/1098
* fix(network): handle fragmented UDP and PMTU relay traffic by @appcypher in https://github.com/superradcompany/microsandbox/pull/1086
* fix(sdk): accept ephemeral cleanup during stop waits by @appcypher in https://github.com/superradcompany/microsandbox/pull/1087
* fix(runtime): allow overriding shutdown flush timeout by @appcypher in https://github.com/superradcompany/microsandbox/pull/1088
* feat(sandbox): live modify and resize for running sandboxes by @appcypher in https://github.com/superradcompany/microsandbox/pull/1099
* fix(agentd): kill the exec process group, not just the direct child by @appcypher in https://github.com/superradcompany/microsandbox/pull/1104
* feat(cli): show sandbox state in msb metrics and add watch/follow modes by @appcypher in https://github.com/superradcompany/microsandbox/pull/1106
* feat(cli): show resource allocations in msb ps by @appcypher in https://github.com/superradcompany/microsandbox/pull/1107
* refactor(network): tidy scoped upstream tls internals and docs by @toksdotdev in https://github.com/superradcompany/microsandbox/pull/1108
* build(deps): bump msb_krun crates to 0.1.22 by @appcypher in https://github.com/superradcompany/microsandbox/pull/1114
* chore(release): bump microsandbox to 0.6.4 by @appcypher in https://github.com/superradcompany/microsandbox/pull/1102


**Full Changelog**: https://github.com/superradcompany/microsandbox/compare/v0.6.3...v0.6.4