Cardano 1.4: Daedalus 0.12.0 with Cardano SL 2.0.0

Release announcement

https://forum.cardano.org/t/iohk-is-pleased-to-announce-the-release-of-cardano-1-4-the-most-significant-update-for-cardano-yet/18687

Release notes

English
日本語

Support portal

English
日本語

Cardano versioning

https://iohk.io/blog/how-cardano-releases-are-versioned/

Cardano testnet

https://testnet.iohkdev.io/cardano/