# Grin (node) v4.1.0 Released

**URL:** <https://forum.grin.mw/t/grin-node-v4-1-0-released/7840>\
**Category:** Announcements\
**Created:** [September 16, 2020, 2:24pm UTC](https://forum.grin.mw/t/grin-node-v4-1-0-released/7840 "2020-09-16T14:24:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![antioch](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/antioch/32/45_2.png) [@antioch](https://forum.grin.mw/u/antioch)\
**Post date:** [September 16, 2020, 2:24pm UTC](https://forum.grin.mw/t/grin-node-v4-1-0-released/7840/1 "2020-09-16T14:24:34Z")

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Grin (node) v4.1.0 has been released.

> **[Release v4.1.0 · mimblewimble/grin](https://github.com/mimblewimble/grin/releases/tag/v4.1.0)**
>
> Changes:
> 
> 03dbee6 bump version to 4.1.0 final for release (#3444)
> 95176a7 bump new 4.1.0 branch to 4.1.0-beta.1 (#3442)
> 06a09f2 bump protocol version to 1000 to facilitate deprecation of earlier ve...

Release notes - [https://github.com/mimblewimble/grin/issues/3445](https://github.com/mimblewimble/grin/issues/3445)

This is a minor release. No significant new features to call out.  
Lots of cleanup and code quality improvements.

This release bumps the supported protocol version of the node, indicating support for “commit only” inputs in blocks and transactions. Nodes continue to be backward compatible with prior protocol versions.

As always, please reach out here or in keybase if you experience any issues or unexpected behavior.

Enjoy!

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<div class="post-metadata">

**Author:** ![antioch](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/antioch/32/45_2.png) [@antioch](https://forum.grin.mw/u/antioch)\
**Post date:** [October 8, 2020, 12:29pm UTC](https://forum.grin.mw/t/grin-node-v4-1-0-released/7840/3 "2020-10-08T12:29:10Z")

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`v4.1.1` has just been released - this patches a small issue recently discovered and fixed.

We identified an issue involving older nodes (`v4.0.0`)syncing against more recent `v4.1.0` nodes. This is related to the conversion logic between `v2` and `v3` blocks to support `CommitOnly` transaction inputs.

(Brief) release notes available here - [https://github.com/mimblewimble/grin/releases/tag/v4.1.1](https://github.com/mimblewimble/grin/releases/tag/v4.1.1)

If anybody is running a `v4.1.0` node we recommend updating to `v4.1.1` when convenient.

If anybody is still running a `v4.0.0` node then this might be a good time to upgrade to `v4.1.1` also.

Enjoy!