> For the complete documentation index, see [llms.txt](https://archive-ko.docs.klaytn.foundation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://archive-ko.docs.klaytn.foundation/content/installation-guide/deployment/download/v1.2.0.md).

# v1.2.0

## Package Downloads <a href="#package-downloads" id="package-downloads"></a>

### RPM <a href="#rpm" id="rpm"></a>

Cypress Packages

* [kcnd-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kcnd-v1.2.0-4.el7.x86_64.rpm)
* [kpnd-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kpnd-v1.2.0-4.el7.x86_64.rpm)
* [kend-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kend-v1.2.0-4.el7.x86_64.rpm)

Baobab Packages

* [kcnd-baobab-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kcnd-baobab-v1.2.0-4.el7.x86_64.rpm)
* [kpnd-baobab-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kpnd-baobab-v1.2.0-4.el7.x86_64.rpm)
* [kend-baobab-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kend-baobab-v1.2.0-4.el7.x86_64.rpm)

Common Packages

* [kscnd-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kscnd-v1.2.0-4.el7.x86_64.rpm)
* [kspnd-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kspnd-v1.2.0-4.el7.x86_64.rpm)
* [ksend-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/ksend-v1.2.0-4.el7.x86_64.rpm)
* [kbnd-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kbnd-v1.2.0-4.el7.x86_64.rpm)
* [kgen-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/kgen-v1.2.0-4.el7.x86_64.rpm)
* [homi-v1.2.0-4.el7.x86\_64.rpm](http://packages.klaytn.net/klaytn/v1.2.0/homi-v1.2.0-4.el7.x86_64.rpm)

### Linux <a href="#linux" id="linux"></a>

Cypress Packages

* [kcn-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kcn-v1.2.0-4-linux-amd64.tar.gz)
* [kpn-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kpn-v1.2.0-4-linux-amd64.tar.gz)
* [ken-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ken-v1.2.0-4-linux-amd64.tar.gz)

Baobab Packages

* [kcn-baobab-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kcn-baobab-v1.2.0-4-linux-amd64.tar.gz)
* [kpn-baobab-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kpn-baobab-v1.2.0-4-linux-amd64.tar.gz)
* [ken-baobab-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ken-baobab-v1.2.0-4-linux-amd64.tar.gz)

Common Packages

* [kscn-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kscn-v1.2.0-4-linux-amd64.tar.gz)
* [kspn-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kspn-v1.2.0-4-linux-amd64.tar.gz)
* [ksen-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ksen-v1.2.0-4-linux-amd64.tar.gz)
* [kbn-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kbn-v1.2.0-4-linux-amd64.tar.gz)
* [kgen-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kgen-v1.2.0-4-linux-amd64.tar.gz)
* [homi-v1.2.0-4-linux-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/homi-v1.2.0-4-linux-amd64.tar.gz)

### MacOS <a href="#macos" id="macos"></a>

Cypress Packages

* [kcn-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kcn-v1.2.0-4-darwin-amd64.tar.gz)
* [kpn-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kpn-v1.2.0-4-darwin-amd64.tar.gz)
* [ken-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ken-v1.2.0-4-darwin-amd64.tar.gz)

Baobab Packages

* [kcn-baobab-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kcn-baobab-v1.2.0-4-darwin-amd64.tar.gz)
* [kpn-baobab-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kpn-baobab-v1.2.0-4-darwin-amd64.tar.gz)
* [ken-baobab-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ken-baobab-v1.2.0-4-darwin-amd64.tar.gz)

Common Packages

* [kscn-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kscn-v1.2.0-4-darwin-amd64.tar.gz)
* [kspn-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kspn-v1.2.0-4-darwin-amd64.tar.gz)
* [ksen-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/ksen-v1.2.0-4-darwin-amd64.tar.gz)
* [kbn-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kbn-v1.2.0-4-darwin-amd64.tar.gz)
* [kgen-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/kgen-v1.2.0-4-darwin-amd64.tar.gz)
* [homi-v1.2.0-4-darwin-amd64.tar.gz](http://packages.klaytn.net/klaytn/v1.2.0/homi-v1.2.0-4-darwin-amd64.tar.gz)

### Windows <a href="#windows" id="windows"></a>

* Not supported yet

## Klaytn v1.2.0 릴리즈 정보 <a href="#release-notes-for-klaytn-v1-2-0" id="release-notes-for-klaytn-v1-2-0"></a>

### 주요 공지 - 서비스체인의 첫 번째 공식 릴리스 <a href="#highlight-the-first-official-release-of-service-chain" id="highlight-the-first-official-release-of-service-chain"></a>

We are pleased to announce that this version officially supports Service Chain. Service Chain is Klaytn’s layer-2 solution designed to achieve horizontal scalability. Service chains run independently from the Klaytn main chain and can have own governance. To learn more about the Service Chain, please visit <https://docs.klaytn.foundation/klaytn/scaling-solutions>.

### New Features <a href="#new-features" id="new-features"></a>

* 서비스체인 기능
* 데이터 앵커링: `ChainDataAnchoring` 트랜잭션을 통해 서비스체인 데이터를 상위 체인에 앵커링할 수 있습니다.
* 체인 간 가치 이동: 서비스체인과 상위 체인 간에 KLAY와 KCT를 이전할 수 있습니다.
* 고가용성 : 하드웨어/소프트웨어 오류로 인한 다운타임을 줄이기 위해 H/A 구성을 지원하며, 이 구성을 위해 브리지 노드를 중복 설정할 수 있습니다.
* 서비스체인을 위한 신규 API
* klay\_getDecodedAnchoringTransactionByHash
* subbridge\_getParentOperatorBalance
* subbridge\_getChildOperatorBalance
* subbridge\_getAnchoringTxHashByBlockNumber
* subbridge\_getValueTransferOperatorThreshold
* subbridge\_setValueTransferOperatorThreshold
* subbridge\_registerOperator
* subbridge\_getRegisteredOperators

### Fixes <a href="#fixes" id="fixes"></a>

* txpool의 race condition을 수정했습니다.

### Improvements <a href="#improvements" id="improvements"></a>

* unlock된 토큰만 체인 간에 이동할 수 있습니다.