Changelog

This page summarises notable changes across galois-edge. Per-release artifacts and SHA-256 checksums live at releases.galoislabs.ai. For the full commit history, see the GitHub repository.

Unreleased (post-v0.1)

Capability gap close-out (8-spec wave, May 2026)

galois Python SDK (new repo). Typed Edge / Cloud / Instrument / Stream / Sweep / Waveform object model wrapping galois.edge.v1.EdgeDaemonService 1:1. NumPy auto-decoding for VectorData. Sync and parallel AsyncEdge surfaces. Cloud-routed access via Cloud.connect(backend_url, token).edge(name). Edge.connect(auth_token=...) carries the daemon’s INBOUND_AUTH_TOKEN.
Multi-stream WebSocket protocol. Up to 32 named streams per socket, identified by caller-supplied stream_id. Per-instrument asyncio.Lock prevents SCPI races between poll ticks and command frames. Acquisition mode holds an instrument exclusively across all sockets via a global _acquiring_instruments set.
gRPC bearer-token auth (INBOUND_AUTH_TOKEN). Optional Python interceptor in grpc_server.py that requires authorization: Bearer <token> on every RPC except Ping. Empty config = disabled, network is the boundary. setup persists the token from the cloud’s registration response.
Five new doctor checks. config_writable, udev_rules_installed (Linux), service_unit_installed (per-platform: systemctl on Linux, SCM on Windows), tailnet_connected (via tailscale status --json side channel), registration_token_format (warns if not glc_…). galois-edge doctor now runs 13 checks.
Auto-attached PyVISA proxy. When a profile matches, pyvisa-galois swaps the resource’s __class__ to a one-off subclass that forwards unknown attribute lookups to the typed proxy. smu.set_voltage(voltage=1.5) works directly on the resource; PyVISA’s own methods always win on name collision. Backward-compat: rm.visalib.get_proxy(handle) still resolves.
Relay client hardening. Bails (no retry) on WebSocket close codes 4401/4403/4426/1008. attempts resets after a clean session ends. Auth migrates from ?token=… URL query string to Authorization: Bearer … header. Malformed-frame guard. Optional hello_ack handshake behind the relay_hello_ack build tag. New WebSocket Relay reference page.
Env-var reconciliation. RESCAN_INTERVAL_SEC is the canonical name (Python no longer reads the wrong SCAN_INTERVAL_S); the legacy name is accepted with a deprecation warning for one minor release. New unknown-var startup guard catches typos before they silently take no effect. _KNOWN_GALOIS_VARS allow-list derived from internal/config/config.go fieldMapping, with a CI drift test.
Windows MSI installer. installer/galois-edge.wxs resolves the ServiceInstall conflict by delegating to the Go binary’s install / uninstall subcommands (mirroring Linux). config.env is NeverOverwrite. GALOIS_TOKEN MSI property invokes galois-edge setup post-install. Tray autorun under HKLM by default; TRAY_AUTORUN=user opts into HKCU. Code-signing pipeline pinned to azure/trusted-signing-action@1d365fec…, gated on SIGNING_TENANT_ID so PRs don’t fail without secrets.

Knowledge ingestion

New galois-edge claude command tree (enable, disable, status, backfill) for opt-in Claude Code transcript ingestion. Subjects are keyed off a per-machine install ID so identity survives hostname changes.
Peer-authenticated control endpoint with on-disk cache, size cap, and optional credential pre-redactor.
UUID-anchored hook resume — interrupted ingestions resume from the last consistent transcript anchor instead of byte offsets.

Networking

WebSocket relay client (RELAY_URL, derived automatically from BACKEND_URL) that maintains a persistent connection to the cloud so the backend can dispatch commands even when direct gRPC dial fails.
tsnet.DialContext and tsnet.HTTPClient are now exposed for daemon subsystems that need to talk to the cloud over the tailnet.

Profiles

Property-command setters now fall back to the getter template when placeholders remain unresolved, fixing a class of read-via-write footguns.
Streamable annotations on Quantifi laser power, wavelength, and switch channel-state commands.
26 new Quantifi Photonics SCPI profiles, plus a synthetic simulation engine for demos under contrib/simulation/.

CAN bus / Modbus / SDK profiles

New dbc2galois script converts vendor DBC files into Galois CAN profiles. CAN frames have first-class CANCommandConfig / CANSignalConfig schema entries (message_id, direction, signals, dlc, payload).
GenericCANDriver and CANBusManager. Profiles can declare interfaces: - type: can plus a bus: can0.
Modbus driver framework — YAML-interpreted, cross-platform, with ConnectModbusInstrument and DisconnectInstrument RPCs and an SDM120 energy-meter profile.
DPS-150 sweep commands and a pin-labeled Digilent Analog Discovery profile (42 commands across all DWF subsystems).
Windows system-tray application and a Windows build pipeline producing MSI artifacts.

Driver-deployment RPCs

DeployProfile, RemoveProfile, ListProfiles — push YAML drivers to the daemon at runtime without restarting.
SDK instrument support: sdk: block in profiles plus an SDKExecutor that importlib-loads vendor packages on demand. First wrappers added for instruments without SCPI APIs.
42 instrument profiles converted from open-source Labber drivers (MIT).

Discovery & USB

Trickle scanner: discovery work is spread over time rather than blocking startup.
USB hotplug monitor for plug/unplug events without polling.
Auto-detection of the frozen engine binary next to the supervisor.

v0.1.0 — Initial release

First public tag. Includes:

Go supervisor that spawns and supervises a frozen Python instrument engine.
gRPC service galois.edge.v1.EdgeDaemonService with the core RPC set: SendCommand, ListInstruments, ScanInstruments, ExecuteCommand, ExecuteSequence, StreamMeasurement, GetStatus, Ping, RegisterEdge, Heartbeat.
Embedded Tailscale node (tsnet) for cloud connectivity.
Bidirectional TCP proxy from the tailnet/0.0.0.0 to the localhost-only Python ports.
One-shot installer (install.sh) for Linux with udev rules for the major instrument vendors.
~70 bundled YAML profiles across DMMs, oscilloscopes, sourcemeters, signal generators, network analyzers, and lock-in amplifiers.
galois-edge CLI: start, status, setup, configure, install, uninstall, doctor, version.

Compatibility policy

The proto package is galois.edge.v1. Field additions are backwards-compatible. There is no v2 yet; if breaking changes become necessary, the policy intent is to move them to a parallel v2 rather than break v1 callers.
Config keys are append-only — new keys ship with safe defaults; deprecated keys remain honoured for at least one minor release with a warning.
The Go supervisor and the Python engine ship as a matched pair under one release version (separate binaries, one VERSION directory). Mixing versions across the supervisor/engine boundary is unsupported.