blog(lerobot): release 0.4.0 blog #3128

imstevenpmwork · 2025-10-15T16:12:41Z

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imstevenpmwork · 2025-10-22T11:11:08Z

Hello @pcuenca can I get a quick review on this ? I'm working on adding the few images of the blog, but we can start reviewing the rest. Also could you tag Jade ([email protected]) as a reviewer and assign me in this PR ?
Thanks !

imstevenpmwork · 2025-10-22T11:21:56Z

lerobot-release-v040.md

+You can find the ported models on the Hugging Face Hub: [pi0.5_base](https://huggingface.co/lerobot/pi05_base), [pi0_base](https://huggingface.co/lerobot/pi0_base), and their Libero-tuned counterparts.
+
+### GR00T N1.5
+In another exciting development, we've integrated **NVIDIA's GR00T N1.5** into LeRobot, thanks to a fantastic collaboration with the NVIDIA robotics team! This open foundation model is a powerhouse for generalized robot reasoning and skills. As a cross-embodiment model, it takes multimodal input (like language and images) to perform complex manipulation tasks in diverse environments, marking another major leap in generalized robotics.


Is there a way to tag organizations ?

you can link to them

merveenoyan

very nice!

merveenoyan · 2025-10-22T11:43:54Z

lerobot-release-v040.md

+
+# LeRobot's v0.4.0 Latest Major Updates!
+We're thrilled to announce a series of significant advancements across LeRobot, designed to make open-source robot learning more powerful, scalable, and user-friendly than ever before! From revamped datasets to versatile editing tools, new simulation environments, and a groundbreaking plugin system for hardware, LeRobot is continuously evolving to meet the demands of cutting-edge embodied AI.
+


would be nice to have a ToC here

Perhaps links to previous posts could be useful too, so interested readers can check the evolution.

I'd also consider a tldr about the most salient points, to get people excited from the start (ToCs are useful, but I'm not sure people actively read them).

merveenoyan · 2025-10-22T11:44:55Z

lerobot-release-v040.md

+We're thrilled to announce a series of significant advancements across LeRobot, designed to make open-source robot learning more powerful, scalable, and user-friendly than ever before! From revamped datasets to versatile editing tools, new simulation environments, and a groundbreaking plugin system for hardware, LeRobot is continuously evolving to meet the demands of cutting-edge embodied AI.
+
+## Datasets: Ready for the Next Wave of Large-Scale Robot Learning
+We've completely overhauled our dataset infrastructure with **LeRobotDataset v3.0**, featuring a new chunked episode format and streaming capabilities. This is a game-changer for handling massive datasets like OXE, bringing unparalleled efficiency and scalability.


would be nice to link to OXE and dataset library on GH too

merveenoyan · 2025-10-22T11:46:15Z

lerobot-release-v040.md

+* Unified Parquet Metadata: Say goodbye to scattered JSONs! All episode metadata is now stored in unified, structured Parquet files for easier management and access.
+* Faster Loading & Better Performance: Experience significantly reduced dataset initialization times and more efficient memory usage.
+
+We've also provided a conversion script to easily migrate your existing v2.1 datasets to the new v3.0 format, ensuring a smooth transition. Read more about it in our [blog post](https://huggingface.co/blog/lerobot-datasets-v3). Open-source robotics keeps leveling up!


merveenoyan · 2025-10-22T11:46:48Z

lerobot-release-v040.md

+### New Feature: Dataset Editing Tools!
+Working with LeRobot datasets just got a whole lot easier! We've introduced a powerful set of utilities for flexible dataset editing.
+
+With our new `lerobot-edit-dataset` CLI, you can now:


would be nice to put some example CLI commands here

merveenoyan · 2025-10-22T11:48:27Z

lerobot-release-v040.md

+![TODO](https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/lerobot-release-v040/XXX.png)
+
+### LIBERO Support:
+LeRobot now officially supports **LIBERO**, one of the largest open benchmarks for Vision-Language-Action (VLA) policies, boasting over 130 tasks! This is a huge step toward building the go-to evaluation hub for VLAs, enabling easy integration and a unified setup for evaluating any VLA policy.


would be nice to put some small examples and what type of envs are in LIBERO for those who don't know

merveenoyan · 2025-10-22T12:31:45Z

lerobot-release-v040.md

+
+### Phone Integration
+
+Thanks to our powerful new pipeline system, you can now teleoperate your follower arm **right from your phone** (iOS/Android). The phone acts as a teleoperator device, and our `RobotProcessor` pipeline handles all the transformations, allowing you to drive robots in different action spaces (like end-effector space) with ease.


can you give pointers on ho wpeople can get started with this?

lerobot-release-v040.md

merveenoyan · 2025-10-22T12:32:16Z

lerobot-release-v040.md

+Learn how to create your own plugin in our [documentation](https://huggingface.co/docs/lerobot/integrate_hardware#using-your-own-lerobot-devices-).
+
+### Reachy 2 Integration:
+Thanks to our new plugin system, we've also added **Reachy 2** from Pollen Robotics to LeRobot! Reachy 2 is available for both real robot control and simulation, enabling you to experiment with teleoperation and autonomous demos right away.


maybe a link to how to purchase one would be cool

lerobot-release-v040.md

merveenoyan · 2025-10-22T12:33:42Z

lerobot-release-v040.md

+
+We want to extend a huge **thank you to everyone in the community** for your invaluable contributions, feedback, and support. We're incredibly excited about the future of open-source robotics and can't wait to show you what's next.
+
+Stay tuned for more to come\! <br>


ending with like

Suggested change

Stay tuned for more to come\! <br>

Stay tuned for more to come 🤗 Get started [here](LINK_TO_LEROBOT0.4.0)!

would be more actionable

Co-authored-by: Merve Noyan <[email protected]>

imstevenpmwork · 2025-10-22T16:14:36Z

@merveenoyan most of your comments (the ones with a thumb-up) were addressed in this commit: 0e37958

pcuenca

🔥

pcuenca · 2025-10-23T15:08:43Z

lerobot-release-v040.md

+- user: thomwolf
+---
+
+# LeRobot's v0.4.0 Latest Major Updates!


Don't we want to sync it with the title in the metadata?

pcuenca · 2025-10-23T15:11:56Z

lerobot-release-v040.md

+We've completely overhauled our dataset infrastructure with **LeRobotDataset v3.0**, featuring a new chunked episode format and streaming capabilities. This is a game-changer for handling massive datasets like [OXE](https://huggingface.co/collections/lerobot/open-x-embodiment) and [Droid](https://huggingface.co/datasets/lerobot/droid_1.0.1), bringing unparalleled efficiency and scalability.
+
+### What's New in Datasets v3.0?
+* Chunked Episodes for Massive Scale: Our new format supports datasets at the OXE-level, enabling unprecedented scalability.


unprecedented scalability

Why? Do we want to explain what OXE is (also, the acronym)?

pcuenca · 2025-10-23T15:12:31Z

lerobot-release-v040.md

+
+# LeRobot's v0.4.0 Latest Major Updates!
+We're thrilled to announce a series of significant advancements across LeRobot, designed to make open-source robot learning more powerful, scalable, and user-friendly than ever before! From revamped datasets to versatile editing tools, new simulation environments, and a groundbreaking plugin system for hardware, LeRobot is continuously evolving to meet the demands of cutting-edge embodied AI.
+


Perhaps links to previous posts could be useful too, so interested readers can check the evolution.

lerobot-release-v040.md

pcuenca · 2025-10-23T15:15:44Z

lerobot-release-v040.md

+```bash
+# Merge multiple datasets into a single dataset.
+lerobot-edit-dataset \
+    --repo_id lerobot/pusht_merged \


does this exist?

No, these are examples (placeholders)

pcuenca · 2025-10-23T16:08:35Z

lerobot-release-v040.md

+* Co-training on Heterogeneous Data: Learns from a diverse mix of multimodal web data, verbal instructions, subtask commands, and multi-environment robot data.
+* Physical Intelligence Collaboration: Huge thanks to the [Physical Intelligence team](https://huggingface.co/physical-intelligence) for their groundbreaking work!
+
+You can find the ported models on the Hugging Face Hub: [pi0.5_base](https://huggingface.co/lerobot/pi05_base), [pi0_base](https://huggingface.co/lerobot/pi0_base), and their Libero-tuned counterparts. For more details, checkout the [Physical Intelligence Reasearch](https://www.physicalintelligence.company/blog/pi05)


Ported from what? Also, the model card could use some metadata.

Will update the model card in the following days, thanks !

pcuenca · 2025-10-23T16:10:04Z

lerobot-release-v040.md

+* Scalability: Supports a growing ecosystem of devices without bloating the core library.
+* Community-Friendly: Lowers the barrier to entry for community contributions, fostering a more collaborative environment.
+
+Learn how to create your own plugin in our [documentation](https://huggingface.co/docs/lerobot/integrate_hardware#using-your-own-lerobot-devices-).


A specific example (in addition to the docs) could be illustrative too.

lerobot-release-v040.md

pcuenca · 2025-10-23T16:15:36Z

lerobot-release-v040.md

+
+# LeRobot's v0.4.0 Latest Major Updates!
+We're thrilled to announce a series of significant advancements across LeRobot, designed to make open-source robot learning more powerful, scalable, and user-friendly than ever before! From revamped datasets to versatile editing tools, new simulation environments, and a groundbreaking plugin system for hardware, LeRobot is continuously evolving to meet the demands of cutting-edge embodied AI.
+


I'd also consider a tldr about the most salient points, to get people excited from the start (ToCs are useful, but I'm not sure people actively read them).

Co-authored-by: Pedro Cuenca <[email protected]>

imstevenpmwork · 2025-10-23T19:59:55Z

@pcuenca most of your comments (the ones with a thumb-up) were addressed in this commit: cd0cdaf

imstevenpmwork · 2025-10-24T09:33:27Z

Blog post should now be in its final state! : ) Aiming at releasing this today Friday (Oct 24th) any time before 15:00 CET

imstevenpmwork and others added 6 commits October 15, 2025 18:11

blog(lerobot): init release 0.4.0 blog

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imstevenpmwork changed the title ~~blog(lerobot): init release 0.4.0 blog~~ blog(lerobot): release 0.4.0 blog Oct 22, 2025

imstevenpmwork marked this pull request as ready for review October 22, 2025 11:08

Merge branch 'main' into lerobot/release_0.4.0

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imstevenpmwork commented Oct 22, 2025

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		# LeRobot's v0.4.0 Latest Major Updates!
		We're thrilled to announce a series of significant advancements across LeRobot, designed to make open-source robot learning more powerful, scalable, and user-friendly than ever before! From revamped datasets to versatile editing tools, new simulation environments, and a groundbreaking plugin system for hardware, LeRobot is continuously evolving to meet the demands of cutting-edge embodied AI.


		### Phone Integration

		Thanks to our powerful new pipeline system, you can now teleoperate your follower arm right from your phone (iOS/Android). The phone acts as a teleoperator device, and our `RobotProcessor` pipeline handles all the transformations, allowing you to drive robots in different action spaces (like end-effector space) with ease.


		We want to extend a huge thank you to everyone in the community for your invaluable contributions, feedback, and support. We're incredibly excited about the future of open-source robotics and can't wait to show you what's next.

		Stay tuned for more to come\! <br>

	Stay tuned for more to come\! <br>
	Stay tuned for more to come 🤗 Get started [here](LINK_TO_LEROBOT0.4.0)!

blog(lerobot): release 0.4.0 blog #3128

blog(lerobot): release 0.4.0 blog #3128

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