> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lagerdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Version 0.31.2

> July 8, 2026

## <u>Bug Fixes</u>

* **USB-hub nets work from `lager python` scripts instead of raising `OSError: open failed`.** libusb access to a Yepkit YKUSH or Acroname hub is exclusive, and the drivers cached the open handle indefinitely — so after the first `lager usb` command the Lager Box server pinned the hub, every separate process (each `lager python` script runs in its own subprocess) failed to open it, and only a container restart recovered. Each operation is now a fresh open, operate, release cycle, serialized within and across processes by a per-hub lock; different hubs never block each other. Note: the per-operation reconnect adds roughly 2 seconds to each Acroname operation (YKUSH is unaffected at \~0.1 s).
* **Keithley 2281S measurement parsing.** Current/voltage reads that come back as multi-field or unit-suffixed responses are now parsed robustly instead of raising or returning an incorrect value.
* **VISA-resource net mapping.** Nets backed by a VISA resource now resolve to the correct instrument backend, fixing misrouted access to VISA-connected supplies and meters.
* **Windows-safe `lager update`.** SSH-key setup and the update flow no longer crash on Windows hosts (broadened error handling around `ssh-copy-id` and the container update steps).

## <u>Installation</u>

To install this version:

```bash theme={null}
pip install lager-cli==0.31.2
```

To upgrade from a previous version:

```bash theme={null}
pip install --upgrade lager-cli
```

## Resources

[View Release on PyPI](https://pypi.org/project/lager-cli/0.31.2/)