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What's new

Neptune release highlights.

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

March 25, 2025 API​

Python logging client
0.11.1
  • If you don't set a custom run ID at creation, Neptune generates one for you.
  • Introduced Run methods for printing links to the web app: get_run_url() and get_experiment_url().
  • Added support for protobuf versions 3.19.6+.
  • Deprecated the NEPTUNE_DEBUG_MODE environment variable in favor of NEPTUNE_LOGGER_LEVEL.
  • Performance and reliability improvements to local storage.

March 24, 2025 web app​

App version
3.4.8

March 18, 2025 API​

Python logging client
0.11.0

  • Logging is persistent: Data is stored locally on-disk instead of memory before being synchronized with the Neptune servers.

  • Introduced offline mode and a CLI tool for synchronizing locally stored data.

March 11, 2025 docs​

March 7, 2025 docs​

February 28, 2025 web app​

App version
3.4.7
  • The run description column is added to the table by default.
  • In the runs table, the footer shows how many runs are selected and how many are hidden by filters.
  • Runs are hidden from charts and compare views if filtered out with a query. To keep runs with the eye toggled on visible even if filtered out from the table, enable the option in the eye menu.
  • Various improvements to charts stability and rendering.
  • By default, charts apply one color per run and one line style per metric. In reports, you can now invert the styling in the chart settings.
  • You can rename a report draft directly in the report title.
  • From dashboards and reports, you can export charts in bulk.

February 25, 2025 API​

Python logging client
0.10.2
  • Stability fix: the main process isn't terminated in case of an error.

February 19, 2025 web app API​

App version
3.4.6
Python logging client
0.10.0
Python fetching client
0.14.0
  • Introduced metric previews:
    • Use the preview and preview_completion arguments to log metrics that aren't fully computed yet.
    • In chart widgets, display point previews and the completion level of the metric computation.
    • To include point previews when fetching metrics via the Fetcher Alpha API, use include_point_previews=True.

February 11, 2025 API​

Python fetching client
0.13.0
  • Alpha release of the next major Fetcher API version. The new API simplifies connecting to your Neptune project and specifying what metadata to fetch. For a tutorial, see Query metadata.

February 5, 2025 web app​

App version
3.4.5
  • Clarified wording around selecting visible runs.
  • Charts:
  • Experiments:
    • Introduced dedicated URLs for experiments.
    • The most recently updated run within an experiment becomes the experiment head.
  • Reports:

January 24, 2025 docs​

January 21, 2025 API​

Python fetching client
0.12.0
  • Use batching in ReadOnlyProject.fetch_read_only_experiments().

January 15, 2025 web app​

App version
3.4.4
  • Charts:
    • Unified color picker with HEX support.
    • Added visual indicator on the widget menu when local settings are applied.
    • Improvements to downloading charts as PNG.
  • Expanded max length and allowed characters for project names.

January 13, 2025 API​

Python fetching client
0.11.0
  • Added eager_load_fields parameter for ReadOnlyRun, to control whether run attributes are loaded eagerly (default) or only when accessed.
  • Expanded character set supported for project names.

January 9, 2025 docs​

January 7, 2025 API​

Python logging client
0.9.0
  • Removed support for Python 3.8.
  • Fixed batching of metrics when logged with steps out of order.
  • Fixed retry behavior on encountering a NeptuneRetryableError.

December 19, 2024 web app​

App version
3.4.3