> For the complete documentation index, see [llms.txt](https://docs.firmachain.org/master/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.firmachain.org/master/node-and-validators-guide/history/upgrade-mainnet.md).

# Upgrade Mainnet

### January 22, 2026 13:30:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="95.54296875"></th><th width="648.3828125"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.5.1-patch2</td></tr><tr><td><strong>Features</strong></td><td>Security vulnerability mitigation in CometBFT<br>(non-consensus / non-governance patch)</td></tr></tbody></table>

### December 9, 2025 13:30:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="95.54296875"></th><th width="648.3828125"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.5.1-patch</td></tr><tr><td><strong>Features</strong></td><td>Fixes temp directory cleanup in firmachaind.<br>(non-consensus / non-governance patch)</td></tr></tbody></table>

### November 18, 2025 19:00:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="95.54296875"></th><th width="648.3828125"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.5.1</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.50.14<br>IBC-go @v8.7.0<br>Wasmd @v0.54.3 (WasmVM 2.2.4)<br>CometBFT @v0.38.18<br>firma-js @v0.3.8 or newer</td></tr></tbody></table>

### September 23, 2025 11:00:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="95.54296875"></th><th width="648.3828125"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.5.0-patch</td></tr><tr><td><strong>Features</strong></td><td>Adds CosmWasm contract data to state-sync snapshots for Firmachain nodes.<br>non-consensus / non-governance patch</td></tr></tbody></table>

### August 21, 2025 14:00:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="95.54296875"></th><th width="644.6484375"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.5.0</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.50.12<br>IBC-go @v8.6.1<br>Wasmd @v0.54.0 (WasmVM 2.2.1)<br>CometBFT @v0.38.17<br>firma-js @v0.3.7 or newer<br>New modules: x/circuit, ibc-hooks, ibc-fee, ica-host, icq, packet-forward-middleware<br>New Governance Parameters</td></tr></tbody></table>

### December 19, 2024 15:05:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="96.42578125"></th><th width="644.828125"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.4.0</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.45.16<br>IBC-go @v4.4.0<br>Wasmd @v0.33.0<br>CometBFT @v0.34.33<br>Go @v1.21<br>Enhanced stability, security, and performance improvements</td></tr></tbody></table>

### December 20, 2022 23:00:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="91.6015625"></th><th width="644.921875"></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.3.5-patch</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.45.9<br>Tendermint @v0.34.21<br>IBC @v3.3.0<br>Wasmd @v0.29.2<br>Minimum commission rate - 5%</td></tr></tbody></table>

### October 20, 2022 11:10:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="92.54296875"></th><th></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.3.3-patch</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.44.5-patch<br>+ IBC Security Advisory Dragonberry (<a href="https://forum.cosmos.network/t/ibc-security-advisory-dragonberry/7702">LINK</a>)</td></tr></tbody></table>

### January 26, 2022 23:00:00 (GMT +9)

<table data-header-hidden><thead><tr><th width="93.5625"></th><th></th></tr></thead><tbody><tr><td><strong>Version</strong></td><td>v0.3.3</td></tr><tr><td><strong>Features</strong></td><td>Cosmos SDK @v0.44.5<br>Tendermint @v0.34.14<br>Go Lang @^1.17.5</td></tr></tbody></table>


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