# MechWarrior Online Legends MechWarrior Online September Patch Notes

- Product: MechWarrior Online Legends (https://whatsnew.fyi/product/mechwarrior-online-legends)
- Vendor: Piranha Games Inc.
- Date: 2021-09-22
- Original notes: https://store.steampowered.com/news/app/342200/view/4823907994309605059
- Permalink: https://whatsnew.fyi/product/mechwarrior-online-legends/releases/2021-09-22-mechwarrior-online-september-patch-notes

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Added Caustic Valley Reborn, a rebalanced map
- **changed** — Adjusted weapon balance
- **changed** — Adjusted 'Mech balance
- **changed** — Applied a significant Quirk Pass

[](https://mwomercs.com/news/2021/09/2550-patch-notes-142460-21september2021)

Greetings MechWarriors!

The September Patch is here! This month we have the newest rebalanced map, Caustic Valley Reborn. Also included in this patch are more Weapon Adjustments, some 'Mech Adjustments, and a rather significant Quirk Pass.

Look for our fifth major map update with Viridian Bog and more coming in October!

As with everything, these updates are subject to further balance changes in the future, especially as more variables are brought into the equation with future updates and changes.

So get out there and do the science, and get us your feedback for future iterations!

And now, we hope you enjoy the patch.

-The MechWarrior Online Team

[READ THE FULL PATCH NOTES ON MWOMERCS.COM](https://mwomercs.com/news/2021/09/2550-patch-notes-142460-21september2021)