Ephemeral Sandbox mascot — a Siamese kitten peeking out of its wooden sandbox

Product evolution

What shipped—and what comes next.

The 0.2.x roadmap describes the planned migration from today’s workspace runtime to Ephemeral Sandbox Fabric. Shipped entries remain anchored to immutable GitHub Releases.

0.2.x roadmap

The path to Ephemeral Sandbox Fabric.

Four dependency-ordered milestones turn today’s workspace runtime into a checkpoint-native substrate for multiagent development, RL rollouts, and MCTS search.

Planned specification · patch boundaries may move as benchmark evidence arrives.

Open the full roadmapRead the product specification

  1. 01Universal LayerStack

    Portable workspace truth

  2. 02SandboxGraph Runtime

    Durable branch semantics

  3. 03Rollout Fabric

    Bounded parallel execution

  4. 04Sandbox Fabric

    OCI/Linux + WASI backends

Release history

Shipped releases

Every entry links to its GitHub Release and annotated Git tag in the core repository.

Open all releases
  1. v0.1.3Latest

    Runtime hardening and platform setup

    • Added daemon disk polling for observability.
    • Added Windows sandbox configuration and Linux Multipass setup support.
    • Hardened lifecycle handling, shutdown diagnostics, teardown, and resource accounting.
    View release
  2. v0.1.2

    Console extraction and observability hardening

    • Completed console extraction and core cleanup.
    • Isolated resource sampling and merged daemon topology into resource metrics.
    • Improved current fleet resource usage reporting.
    View release
  3. v0.1.1

    Workspace sessions and process/resource observability

    • Exposed cgroup topology and workspace sessions.
    • Added workspace process topology and resource isolation support.
    • Improved terminal session workflow and snapshot polling.
    View release
  4. v0.1.0

    First public documentation and site baseline

    • Published the static website and documentation shell.
    • Added architecture documentation pages.
    • Built the multilingual documentation experience.
    View release