ultralytics 8.4.39

v8.4.39 - `ultralytics 8.4.39` Use dashed incremented run paths (#24193)

on Python PyPI

🌟 Summary

Ultralytics v8.4.39 is a quality-and-usability release focused on clearer run naming (exp-2), better CLI coverage for Solutions, safer rotated-box training behavior, and broad documentation/platform clarity improvements. 🚀

📊 Key Changes

• (Most important) Dashed run path increments are now default via PR #24193 by @glenn-jocher ✅

  • increment_path() now creates names like exp-2 and results-2.txt (instead of exp2, results2.txt).
  • Added regression tests for both directory and file increment behavior.
  • Updated docs/examples to match the new naming format.

• New CLI parity for Solutions via PR #24251 by @raimbekovm 🧰

  • Added direct CLI commands for:
    • yolo solutions region
    • yolo solutions security
    • yolo solutions parking
  • Docs now include CLI examples for these workflows.
  • Notes:
    • Security email alerts still require Python API authentication.
    • Parking requires a prebuilt JSON of parking zones.

• Rotated OBB training safety fix via PR #24260 by @lmycross 🛠️

  • Prevents unintended in-place modification of gt_bboxes in RotatedTaskAlignedAssigner by cloning before edits.

• Small reliability hardening for security alarm flow 🔒

  • Email sending now checks that a mail server is configured before attempting to send.

• CI workflow resilience improvements via PR #24261 by @glenn-jocher ♻️

  • Retry wrappers added around Docker/registry logins.
  • Link-check retries now use fixed backoff to stay within timeout budgets.

• Documentation and platform clarity updates 📚

  • Explorer references reduced in favor of the Ultralytics Platform for no-code dataset analytics and annotation workflows.
  • Sony IMX500 docs now clearly state supported variants (nano-focused note).
  • Neptune/MLflow integration docs corrected to match actual behavior.
  • Platform docs corrected AP region label to Taiwan (not Hong Kong).
  • Pro plan docs clarified to include 4-role RBAC.
  • Many redirected/outdated links were cleaned up.

🎯 Purpose & Impact

• Cleaner experiment tracking 🗂️
  The exp-2 style is easier to read and more consistent across files/folders, reducing confusion when managing many runs.

• Faster adoption of Solutions from CLI ⚡
  Users can now launch region counting, security monitoring, and parking workflows directly from terminal commands with less setup friction.

• More stable rotated-box training pipelines 🎯
  The OBB fix reduces hidden side effects and hard-to-debug training issues, improving trust in advanced detection workflows.

• Better operational reliability 🧪
  CI retry hardening helps reduce flaky failures in automation and publishing workflows.

• Clearer user guidance and platform onboarding 🌐
  Docs now better reflect current best paths (especially Ultralytics Platform) and reduce ambiguity in integrations, licensing, and region details.

What's Changed

• Fix redirected URLs by @glenn-jocher in #24255
• Add CLI parity for region, security, and parking solutions by @raimbekovm in #24251
• Add supported model variants note to sony-imx500 integration page by @raimbekovm in #24248
• Fix in-place obb gt_bboxes modification in RotatedTaskAlignedAssigner by @lmycross in #24260
• Harden retry behavior in docker and links workflows by @glenn-jocher in #24261
• Fix integrations docs drift for neptune and mlflow by @raimbekovm in #24259
• Docs: remove explorer references, redirect to ultralytics platform by @raimbekovm in #24262
• Correct AP data region label from Hong Kong to Taiwan by @raimbekovm in #24264
• Clarify 4-role rbac availability on pro plan by @raimbekovm in #24263
• ultralytics 8.4.39 Use dashed incremented run paths by @glenn-jocher in #24193

Full Changelog: v8.4.38...v8.4.39