# \[ANN\] Tendermint KMS v0.4: Production YubiHSM 2 setup + Ledger support

**URL:** <https://forum.cosmos.network/t/ann-tendermint-kms-v0-4-production-yubihsm-2-setup-ledger-support/1646>\
**Category:** Validation\
**Created:** [March 6, 2019, 5:17am UTC](https://forum.cosmos.network/t/ann-tendermint-kms-v0-4-production-yubihsm-2-setup-ledger-support/1646 "2019-03-06T05:17:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![iqlusion](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.cosmos.network/iqlusion/32/294_2.png) [@iqlusion](https://forum.cosmos.network/u/iqlusion)\
**Post date:** [March 6, 2019, 5:17am UTC](https://forum.cosmos.network/t/ann-tendermint-kms-v0-4-production-yubihsm-2-setup-ledger-support/1646/1 "2019-03-06T05:17:12Z")

</div>

Tendermint KMS v0.4.0 has been released!

[https://crates.io/crates/tmkms/0.4.0](https://crates.io/crates/tmkms/0.4.0)

This version includes two important new features:

- [Production YubiHSM 2 setup](https://github.com/tendermint/kms/blob/master/README.yubihsm.md)
- [Ledger integration](https://github.com/tendermint/kms/pull/176)

Full changelog available here:

> <https://github.com/tendermint/kms/blob/master/CHANGES.md#040-2019-03-05>

Please respond in this thread with any questions, or ask on the Cosmos Validators Riot channel.