# v1.8.4
## Package Downloads
### RPM
Cypress Packages
* [kcnd-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kcnd-v1.8.4-0.el7.x86_64.rpm)
* [kpnd-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kpnd-v1.8.4-0.el7.x86_64.rpm)
* [kend-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kend-v1.8.4-0.el7.x86_64.rpm)
Baobab Packages
* [kcnd-baobab-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kcnd-baobab-v1.8.4-0.el7.x86_64.rpm)
* [kpnd-baobab-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kpnd-baobab-v1.8.4-0.el7.x86_64.rpm)
* [kend-baobab-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kend-baobab-v1.8.4-0.el7.x86_64.rpm)
Common Packages
* [kscnd-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kscnd-v1.8.4-0.el7.x86_64.rpm)
* [kspnd-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kspnd-v1.8.4-0.el7.x86_64.rpm)
* [ksend-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/ksend-v1.8.4-0.el7.x86_64.rpm)
* [kbnd-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kbnd-v1.8.4-0.el7.x86_64.rpm)
* [kgen-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/kgen-v1.8.4-0.el7.x86_64.rpm)
* [homi-v1.8.4-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.8.4/homi-v1.8.4-0.el7.x86_64.rpm)
### Linux
Cypress Packages
* [kcn-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kcn-v1.8.4-0-linux-amd64.tar.gz)
* [kpn-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kpn-v1.8.4-0-linux-amd64.tar.gz)
* [ken-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ken-v1.8.4-0-linux-amd64.tar.gz)
Baobab Packages
* [kcn-baobab-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kcn-baobab-v1.8.4-0-linux-amd64.tar.gz)
* [kpn-baobab-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kpn-baobab-v1.8.4-0-linux-amd64.tar.gz)
* [ken-baobab-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ken-baobab-v1.8.4-0-linux-amd64.tar.gz)
Common Packages
* [kscn-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kscn-v1.8.4-0-linux-amd64.tar.gz)
* [kspn-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kspn-v1.8.4-0-linux-amd64.tar.gz)
* [ksen-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ksen-v1.8.4-0-linux-amd64.tar.gz)
* [kbn-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kbn-v1.8.4-0-linux-amd64.tar.gz)
* [kgen-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kgen-v1.8.4-0-linux-amd64.tar.gz)
* [homi-v1.8.4-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/homi-v1.8.4-0-linux-amd64.tar.gz)
### MacOS
Cypress Packages
* [kcn-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kcn-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [kpn-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kpn-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [ken-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ken-v1.8.4-0-darwin-10.10-amd64.tar.gz)
Baobab Packages
* [kcn-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kcn-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [kpn-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kpn-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [ken-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ken-baobab-v1.8.4-0-darwin-10.10-amd64.tar.gz)
Common Packages
* [kscn-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kscn-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [kspn-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kspn-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [ksen-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/ksen-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [kbn-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kbn-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [kgen-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/kgen-v1.8.4-0-darwin-10.10-amd64.tar.gz)
* [homi-v1.8.4-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.8.4/homi-v1.8.4-0-darwin-10.10-amd64.tar.gz)
### Windows
* Not supported yet
## Release Notes
We are happy to announce that Klaytn v1.8.4 has been released, with improvements for the ServiceChain, which is an integral part of Klaytn’s Metaverse Package. This release has only to do with the ServiceChain, so there is no need to update your nodes that don’t support ServiceChain bridges.
### Improvements
* Introduced the `SC_VTRECOVERY_INTERVAL` configuration which sets the recovery interval, and renames `VTRECOVERY` to `SC_VTRECOVERY`. (#1271)
* Added two APIs for the Subbridge namespace `subbridge_getChildBridgeContractBalance` and `subbridge_getParentBridgeContractBalance` to return the balance for the respective contracts. (#1254)
* Added a logic in `setBridge()` to check whether an address is a contract. (#1299)
* Added request timeout flag for KAS, which can be set in the configuration file.(#1284)
* Introduced `SC_DEFAULTGASLIMIT` to make ServiceChain default gas limit configurable.(#1287)
* Enabled separate gas limit setting for parent/child chains introducing new configurations and APIs. (#1353)
* Configurations: `SC_PARENT_OPERATOR_GASLIMIT` and `SC_CHILD_OPERATOR_GASLIMIT`
* APIs: `subbridge_setParentBridgeOperatorGasLimit`, `subbridge_setChildBridgeOperatorGasLimit`, `subbridge_getParentBridgeOperatorGasLimit`, and `subbridge_getChildBridgeOperatorGasLimit`
* Added the `chaindatafetcher` option in KSEN. (#1347 #1344)
### Fixes
* Introduced a new value transfer event `RequestValueTransferEncoded` supporting URI of ERC-721 in the BridgeTransfer contract. (#1321 #1378)
### Miscellaneous
* Minor refactorings. (#1285 #1262)