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What's new

Neptune release highlights.

August 28, 2025 web app​

App version
3.20250825

August 25, 2025 API​

Python querying client
1.2.1

August 25, 2025 API​

Python querying client
1.2.0
  • When fetching experiment metrics, lineage_to_the_root=False now accurately returns steps from all runs within the experiment.

August 19, 2025 API​

Python querying client
1.1.0

Initial release of the Query API. Replaces all versions of the Fetcher API.

August 14, 2025 web app​

App version
3.20250811
  • Introduced the homepage:
    • A single page where you can view and manage all runs that you've created, from all projects and workspaces.
    • To access the homepage, click the Neptune logo in the top left corner of the app.
  • Introduced the experimental zoom in charts:
    • Double-click anywhere on the chart to zoom out by a factor of 2 and triple-click to reset the zoom.
    • To use the experimental zoom, enable it in your account settings.
  • The app now notifies you about network connection issues.
  • In charts with linear scale, the number formatting is improved in axis labels. For example, 1915 is no longer rendered as 1.915k.
  • Improved the performance of displaying a large number of runs at once.
  • Corrected the behavior of symmetrical error bands in charts. Also, fixed an issue where enabling and disabling error bands repeatedly could make the default bands disappear.
  • Fixed an issue where runs hidden with filters stayed visible in the runs table.

August 6, 2025 API​

Python logging client
0.21.0
  • Removed the resume parameter from the Run constructor. When a run with the provided run_id is found, Neptune resumes logging to that run. Otherwise, a new run is created.

August 5, 2025 web app​

App version
3.4.15
  • You can create custom error bands for charts in reports and dashboards.
  • When zooming a chart, if there are other charts with the same X-axis series, they're auto-zoomed to the same range. To zoom only the one chart, hold Ctrl or Cmd.
  • In the Add/manage columns menu of the runs table controls, you can drag and drop attributes to rearrange the columns in the table.
  • Issues fixed:
    • The run description in the table cell now updates immediately when the description is changed through the Run information modal.
    • Double-clicking a runs table column separator now expands the column to fit the content width.
    • The Display only selected setting now respects hidden run sets.

July 24, 2025 API​

Python logging client
0.18.0

July 14, 2025 web app​

App version
3.4.14
  • Chart smoothing:
    • EMA is available as a smoothing algorithm. It's also the default setting.
    • You can set the smoothing algorithm not only globally but also per widget.
    • The input window is based on x-axis range instead of the number of points.
    • The original graph is displayed in the background.
  • Chart legend:
    • After freezing the floating legend in place, you can move it by clicking and dragging the header.
    • To navigate to the experiment or run that generated the displayed data point, use the icons next to the name.
  • In reports, use the search to preview charts based on the metric name.
  • When exporting a dashboard to a report, the widget layout is preserved.
  • In the runs table, names are selectable.
  • Issues fixed:
    • The NOT operator now provides correct suggestions in regular expressions.
    • The Side-by-side view no longer displays empty headers.
    • Chart titles and attribute names are now selectable.
    • The runs table no longer freezes when resizing columns.

July 9, 2025 API​

Python fetching client
0.18.0
  • If you face rate limiting while using the fetcher API, the fetching operations will pause and retry after some time.

July 4, 2025 docs​

June 26, 2025 API​

Python logging client
0.17.0
Python fetching client
0.17.0
  • Added support for Google Cloud Storage when logging files.
  • Added changes in preparation for the new fetching API package.

June 23, 2025 docs​

June 23, 2025 web app API​

App version
3.4.13
Python logging client
0.16.0
  • Introduced the file series widget.
  • For charts, you can choose between the floating and bottom-attached chart legend.
  • For most settings on the chart widget level, you can choose the Inherited value. The inherited settings are updated automatically to reflect the currently configured global settings.

Python client:

  • When initializing a run, the app URL is printed to the console.
  • Return True/False from the wait functions depending on whether the operations were processed or they timed out.

June 4, 2025 web app​

App version
3.4.12
Python logging client
0.14.0

May 22, 2025 web app API​

App version
3.4.11
Python logging client
0.13.0
  • Added support for logging a series of files:
    • Use the log_files() function to upload files to Neptune.
    • To view logged files in the Neptune app, navigate to the Attributes tab of a selected run.
  • Charts:
    • Point previews are enabled by default in chart widgets.
    • To make graphs easier to see, the min/max shadow isn't shown when manual smoothing is applied.
    • The chart legend can be resized horizontally and it's positioned further from the graph. You can restore sticking to the cursor in your user profile, under Experimental features.
    • Fixed an issue where disabling inherited metrics didn't hide metrics from ancestor runs within the experiment when viewing metrics of an experiment head in Runs mode.
  • In newly created runs, the sys/diagnostics namespace tracks metadata statistics useful for diagnostics.
  • In the runs table, updated the bulk actions toolbar for selected runs.
  • Changed the namespace that collects console logs and other runtime metrics from system to runtime.

May 19, 2025 API​

Python logging client
0.12.1

April 29, 2025 web app API​

App version
3.4.10
Python logging client
0.12.0
Python fetching client
0.15.0
  • Added support for logging a series of strings:
    • The stderr and stdout streams are logged by default. You can disable this by setting enable_console_log_capture=False at Run initialization.
    • Use the log_string_series() function to log a custom sequence of text entries.
  • Added support for logging files:
    • Use the assign_files() function to upload files to Neptune.
    • To view logged files in the Neptune app, navigate to the Attributes tab of a selected run.
    • You can download files from the Neptune app or with the download_files() function.
  • You can use the side-by-side view in reports.
  • Added support for the ! (NOT) operator to the extended regex syntax.
  • The side-by-side view supports extended regex.
  • Introduced causal SMA as the default smoothing algorithm.
  • The sys/running_time_seconds attribute tracks the total running time of a Neptune run.

April 29, 2025 API​

Python fetching client
0.15.0
  • To specify exact experiments, runs, or attributes, you can pass a list of identifiers directly to the experiments, runs, or attributes argument.

April 8, 2025 API​

Python logging client
0.11.3

April 7, 2025 docs​

April 3, 2025 web app​

App version
3.4.9
  • Added support for extended regex syntax in the Charts tab, runs table, and reports.
  • Moved the query builder under the new button next to the search bar.
  • Introduced global controls for displaying metric previews in charts.
  • In reports, renamed runs and experiments are searchable by both the alias and original name.

April 1, 2025 API​

Python fetching client
0.14.5