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What's new

Neptune release highlights.

October 21, 2025 web app API​

App version
3.20251006.6
Python logging client
0.28.0
  • Added option to inherit configs and other single values when forking experiments. This option is enabled by default.

October 20, 2025 web app​

App version
3.20251006
  • You can configure the homepage runs to include additional runs from any of your workspaces.
  • Changed the default behavior of zooming in charts: Double-click to zoom out by a factor of 2 and triple-click to reset.
  • Side-by-side view:
    • For long strings, hover over a cell to access a full diff view.
    • Only the LAST aggregation is displayed for numerical series.
  • Added keyboard shortcuts:
    • G + H – Go to homepage
    • G + P – Go to all projects
  • Improved performance when searching experiments by name.
  • Ensured that forked runs aren't discoverable in the app until the inheritable data is fully copied.
  • Disabling inherited datapoints is supported for series of histograms and files.
  • Issues fixed:
    • Duplicating a dashboard correctly copies global settings.
    • Removed metrics don't remain visible in a pinned chart legend.

October 14, 2025 web app​

App version
3.20250908.12
  • Introduced the CVD-friendly color palette for visualizing metadata. We recommend choosing this palette if you share views and reports with people who have color vision deficiency.

October 9, 2025 API​

Python querying client
1.7.0

October 2, 2025 web app​

App version
3.20250908.9
  • In charts with logarithmically scaled Y-axis, non-positive values are rendered consistently, keeping spikes visible. The graphs and error bands are rendered as if the negative values are beneath the chart bottom, and negative values are displayed in the chart legend.

September 26, 2025 web app​

App version
3.20250908.7

September 25, 2025 API​

Python logging client
0.27.0
  • Improved Run ID validation.
  • Fixed an issue where on Windows, an error was raised if a run was created in a directory where Git commit information couldn't be found.

September 17, 2025 API​

Python querying client
1.5.1

September 16, 2025 API​

Python querying client
1.5.0

September 15, 2025 API​

Python logging client
0.25.1
  • Made the sync process more resilient: The syncing process will no longer stop if a single data point fails to log.

September 11, 2025 API​

Python querying client
1.4.1

September 11, 2025 web app​

App version
3.20250908
  • Improved axis labeling in charts with logarithmic scale.
  • Fixed issues related to zooming in charts.

September 10, 2025 docs​

September 9, 2025 API​

Python logging client
0.24.0
  • In preparation of full support for logging and displaying NaN and Inf values, the NEPTUNE_SKIP_NON_FINITE_METRICS environment variable has been deprecated. Non-finite metric values are silently skipped.

September 4, 2025 web app​

App version
3.20250901
  • Issues fixed:
    • In charts, labels and lines no longer disappear when zooming.
    • In the side-by-side view, the Show cell changes and Rows with diff only options persist when switching between tabs.

September 2, 2025 API​

Python querying client
1.3.0

September 2, 2025 API​

Python logging client
0.23.0

August 28, 2025 API​

Python logging client
0.22.0

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