[codex] publish 26.06 release notes and migration checklist

[lbliii]

Summary

Publishes the NeMo Curator 26.06 (v1.3.0) release-level documentation rollup tracked by #2120 and the supplemental code-freeze audits in #2118.

• Replaces the stale 26.04 page on the main docs train with categorized 26.06 release notes.
• Adds a dedicated 26.06 migration checklist with before/after examples.
• Covers every implementation PR named in [Docs] Publish 26.06 release notes and migration checklist #2120 and all 17 supplemental/code-freeze PRs now tracked by [Docs epic] Close post-v1.2.0 documentation gaps for 26.06 #2118.
• Documents Python 3.11-3.13 support and the final CUDA 12.9.1, Ray 2.55.1, PyTorch 2.10.0+cu129, vLLM 0.18.1, AI-Dynamo 1.1.0, and HAProxy 2.8.20 stack.
• Adds the migration checklist to the Release Notes navigation.

Release-boundary update

PR #2063 is now on main, so the branch no longer says resumability is unreleased. The release notes and migration checklist document released Pipeline.run(checkpoint_path=...) behavior, its pre-existing-Ray requirement, local checkpoint storage, resumability-safe stage validation, and NoneTask / FailedTask semantics.

PR #2059 is also included as a new capability: deterministic source sharding across SLURM arrays, shard completion manifests, and incomplete-shard retry discovery.

Supplemental coverage

The update explicitly captures #1427, #1679, #1746, #1762, #1763, #1774, #1844, #1855, #1870, #1880, #1888, #1890, #1895, #1927, #1957, #2059, and #2063. Detailed #1927 guidance is in #2149, native resumability is in #2134, and SLURM arrays are in #2154.

Merge order / documentation dependencies

Merge this PR after the detailed feature workstreams so its canonical internal links resolve to their final pages:

• [codex] docs: clarify deduplication input discovery #2130 - deduplication input handling
• [codex] docs: expand Nemotron-Parse tuning guidance #2131 - Nemotron-Parse tuning and metrics
• [codex] docs: complete translation configuration reference #2132 - translation controls
• [codex] docs: add video caption evaluation guide #2133 - video caption evaluation
• [codex] docs: document native pipeline resumability #2134 - pipeline resumability
• [codex] docs: add audio tagging pipeline guide #2135 - audio tagging, quality, and PnC
• [codex] docs: add long-form audio cutting guide #2136 - long-form audio pretraining
• [codex] docs: add Nemotron OCR pipeline guide #2137 - Nemotron OCR
• [codex] Add Nemotron-CLIMB data-curation recipe #2138 - Nemotron-CLIMB
• [codex] Document stage worker sizing and backend overrides #2142 - stage worker sizing
• [codex] Document memory-efficient semantic dedup fitting #2149 - memory-efficient semantic deduplication fitting
• [codex] Document SLURM job arrays and retries #2154 - SLURM job arrays and retries

Validation

• fern check: passed with 0 errors
• git diff --check: passed
• all Python examples in the release notes and migration page parse with ast
• coverage audit: all 17 supplemental/code-freeze PR numbers are linked
• dependency audit: versions verified against current pyproject.toml, uv.lock, Dockerfile, and HAProxy installer
• fern docs broken-links: 10 planned sibling-page links above plus the 22 pre-existing repository errors

Closes #2120
Part of #2144
Parent tracker: #2118

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[greptile-apps]

Greptile Summary

Publishes the NeMo Curator 26.06 (v1.3.0) release-level documentation: the stale 26.04 index.mdx is replaced with a full 26.06 release notes page, a new 26-06-migration.mdx migration checklist is added, and main.yml is updated to include it in navigation.

• The migration checklist covers 11 areas (Python upgrade, framework-owned task IDs, sentinel construction, video preprocessing removal, caption variant rename, typed inference-server config, ASR worker rename, stage scheduling normalization, arch-specific deps, resumability, and post-upgrade checks), with before/after code examples for each breaking change.
• Cross-links between index.mdx and 26-06-migration.mdx use numbered anchor fragments (#4-remove-..., #9-review-...) that match the numbered ## headings in the migration file; the previous review concern about missing number prefixes does not apply to the current diff.
• Dependency versions cited in the release notes (Ray 2.55.1, vLLM 0.18.1 within >=0.14.1,<0.19, PyTorch 2.10.0+cu129, AI-Dynamo 1.1.0, HAProxy 2.8.20) are internally consistent.

Confidence Score: 5/5

Documentation-only PR; no executable code paths, API contracts, or data migrations are touched.

All three changed files are MDX documentation and a YAML navigation entry. The before/after code examples are syntactically valid Python (verified by ast per the PR description), the cross-page fragment anchors use numbered prefixes that match the numbered headings in the migration file, and the dependency versions cited are internally consistent. No runtime behavior changes.

No files require special attention.

Important Files Changed

Filename	Overview
fern/versions/main.yml	Adds the 26.06 Migration Checklist page to the Release Notes navigation block; minimal, correct YAML change.
fern/versions/main/pages/about/release-notes/26-06-migration.mdx	New 11-section migration checklist covering Python upgrade, task-ID removal, sentinel construction, video preprocessing removal, caption variant rename, typed inference-server config, ASR worker rename, stage scheduling, arch-specific deps, resumability setup, and post-upgrade checks. Frontmatter, before/after code examples, and cross-links look internally consistent.
fern/versions/main/pages/about/release-notes/index.mdx	Replaces 26.04 release notes with 26.06 content; includes What's New, Improvements, Fixes, Breaking Changes, Dependency Changes, and Upgrade Checklist sections. Fragment anchors in cross-links use numbered prefixes that match the numbered headings in the migration page.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[User opens Release Notes] --> B[index.mdx — 26.06 Release Notes]
    B --> C{Needs migration?}
    C -->|Yes| D[26-06-migration.mdx — Migration Checklist]
    C -->|No| E[Read What's New / Fixes / Deps]
    D --> D1[1. Upgrade Python to 3.11-3.13]
    D --> D2[2. Stop supplying task_id]
    D --> D3[3. Instantiate EmptyTask]
    D --> D4[4. Remove model_does_preprocess]
    D --> D5[5. Replace qwen variant]
    D --> D6[6. Replace InferenceModelConfig]
    D --> D7[7. Rename num_workers to dataloader_num_workers]
    D --> D8[8. Normalize stage scheduling]
    D --> D9[9. Review arch-specific deps]
    D --> D10[10. Configure Pipeline Resumability]
    D --> D11[11. Run post-upgrade checks]
    D1 & D2 & D3 & D4 & D5 & D6 & D7 & D8 & D9 & D10 & D11 --> Z[Validated pipeline on 26.06]
    B --> F[main.yml navigation]
    F --> G[Release Notes Overview]
    F --> D
    F --> H[Migration FAQ]

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[User opens Release Notes] --> B[index.mdx — 26.06 Release Notes]
    B --> C{Needs migration?}
    C -->|Yes| D[26-06-migration.mdx — Migration Checklist]
    C -->|No| E[Read What's New / Fixes / Deps]
    D --> D1[1. Upgrade Python to 3.11-3.13]
    D --> D2[2. Stop supplying task_id]
    D --> D3[3. Instantiate EmptyTask]
    D --> D4[4. Remove model_does_preprocess]
    D --> D5[5. Replace qwen variant]
    D --> D6[6. Replace InferenceModelConfig]
    D --> D7[7. Rename num_workers to dataloader_num_workers]
    D --> D8[8. Normalize stage scheduling]
    D --> D9[9. Review arch-specific deps]
    D --> D10[10. Configure Pipeline Resumability]
    D --> D11[11. Run post-upgrade checks]
    D1 & D2 & D3 & D4 & D5 & D6 & D7 & D8 & D9 & D10 & D11 --> Z[Validated pipeline on 26.06]
    B --> F[main.yml navigation]
    F --> G[Release Notes Overview]
    F --> D
    F --> H[Migration FAQ]

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_{Reviews (5): Last reviewed commit: "docs: add missing 26.06 migration notice..." | Re-trigger Greptile}

[lbliii]

Adversarial release-doc review follow-up is now included in commit 86e286845:

• Added a What's New entry and breaking-change notice for the expanded Qwen/Nemotron caption model matrix.
• Added the required migration from the removed qwen caption variant to qwen2.5 or qwen3.
• Added a What's New entry and breaking-change notice for typed Ray Serve/Dynamo inference-server configuration.
• Added before/after migration guidance for the removed InferenceModelConfig API.
• Updated the migration summary, section anchors, and post-upgrade checks.

This makes #2147 and #2148 explicit content dependencies of the release rollup. Please merge the detailed feature PRs first and keep #2143 last so the consolidated 26.06 page can be rebased once and retain all release-note material.

Validation after rebasing on the current remote branch:

• fern check: 0 errors
• git diff --check: passed
• all 15 Python code blocks in the migration checklist parse with ast

Cross-PR integration and publication staging are tracked in #2160.