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docs: LangGraph SDK v1.4.0 notebooks for v26.4 release#88

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dbasilfid wants to merge 3 commits intomainfrom
release/update-26-4
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docs: LangGraph SDK v1.4.0 notebooks for v26.4 release#88
dbasilfid wants to merge 3 commits intomainfrom
release/update-26-4

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Summary

Notebook changes for the Fiddler LangGraph SDK v1.4.0 release (v26.4). Adds a new custom instrumentation notebook and fixes issues in existing notebooks.

Companion PR: fiddler-labs/fiddler#17651 (documentation pages).

Plan Items Addressed

  • C-2: Remove TestPyPI install from LangGraph notebook
  • F-9: Create custom instrumentation notebook (35 cells covering @trace, get_current_span, span wrappers, manual context managers, async support, context isolation)
  • M-5: Fix 4 broken relative links in LangGraph notebook (replaced with canonical docs.fiddler.ai URLs)
  • M-6: Update 2 stale dates in OTel notebook
  • L-7: Standardize support email (help@ to support@) in LangGraph Advanced notebook

Changes

New Files

  • quickstart/latest/Fiddler_Quickstart_LangGraph_Custom_Instrumentation.ipynb — 35 cells (18 markdown, 17 code) demonstrating decorator-based and manual instrumentation with the Fiddler LangGraph SDK v1.4.0

Updated Files

  • quickstart/latest/Fiddler_Quickstart_LangGraph_Advanced_Observability.ipynb — Fixed broken links (cells 0, 15), standardized support email
  • quickstart/latest/Fiddler_Quickstart_OpenTelemetry_Advanced.ipynb — Updated stale dates

How to Review

  1. Start with the new notebook — check the flow from setup through decorator examples, span wrappers, async, and cleanup
  2. Verify the link fixes in the Advanced Observability notebook
  3. The OTel notebook date changes are trivial

dbasilfid and others added 3 commits February 20, 2026 22:36
…tebook install [Plan F-9, C-2]

New notebook demonstrating decorator-based and manual instrumentation
from LangGraph SDK v1.4.0. Fix TestPyPI install in existing notebook.

Prompt: "create custom instrumentation notebook"

- Add Fiddler_Quickstart_LangGraph_Custom_Instrumentation.ipynb (35 cells)
  covering @trace(), get_current_span(), span types, manual context
  managers, mixed approaches, async support, context isolation
- Fix LangGraph Advanced Observability notebook: replace TestPyPI
  install with standard PyPI install line

Co-Authored-By: Claude <[email protected]>
Prompt: "fix broken relative links and stale example dates in notebooks"

- Replace 4 broken relative links with canonical docs.fiddler.ai URLs (M-5)
- Update 2 stale 2024-12 dates to 2026-06 in OTel notebook examples (M-6)

Co-Authored-By: Claude <[email protected]>
Prompt: "continue — Phase 4 first, then Phase 5"

- Change [email protected][email protected] in LangGraph Advanced notebook

Co-Authored-By: Claude <[email protected]>
@dbasilfid dbasilfid added the documentation Improvements or additions to documentation label Feb 21, 2026
@dbasilfid
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Companion docs PR: https://github.com/fiddler-labs/fiddler/pull/17651

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