# v1.7.3

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

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

Cypress Packages

* [kcnd-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kcnd-v1.7.3-0.el7.x86_64.rpm)
* [kpnd-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kpnd-v1.7.3-0.el7.x86_64.rpm)
* [kend-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kend-v1.7.3-0.el7.x86_64.rpm)

Baobab Packages

* [kcnd-baobab-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kcnd-baobab-v1.7.3-0.el7.x86_64.rpm)
* [kpnd-baobab-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kpnd-baobab-v1.7.3-0.el7.x86_64.rpm)
* [kend-baobab-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kend-baobab-v1.7.3-0.el7.x86_64.rpm)

Common Packages

* [kscnd-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kscnd-v1.7.3-0.el7.x86_64.rpm)
* [kspnd-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kspnd-v1.7.3-0.el7.x86_64.rpm)
* [ksend-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/ksend-v1.7.3-0.el7.x86_64.rpm)
* [kbnd-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kbnd-v1.7.3-0.el7.x86_64.rpm)
* [kgen-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/kgen-v1.7.3-0.el7.x86_64.rpm)
* [homi-v1.7.3-0.el7.x86\_64.rpm](https://packages.klaytn.net/klaytn/v1.7.3/homi-v1.7.3-0.el7.x86_64.rpm)

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

Cypress Packages

* [kcn-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kcn-v1.7.3-0-linux-amd64.tar.gz)
* [kpn-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kpn-v1.7.3-0-linux-amd64.tar.gz)
* [ken-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ken-v1.7.3-0-linux-amd64.tar.gz)

Baobab Packages

* [kcn-baobab-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kcn-baobab-v1.7.3-0-linux-amd64.tar.gz)
* [kpn-baobab-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kpn-baobab-v1.7.3-0-linux-amd64.tar.gz)
* [ken-baobab-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ken-baobab-v1.7.3-0-linux-amd64.tar.gz)

Common Packages

* [kscn-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kscn-v1.7.3-0-linux-amd64.tar.gz)
* [kspn-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kspn-v1.7.3-0-linux-amd64.tar.gz)
* [ksen-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ksen-v1.7.3-0-linux-amd64.tar.gz)
* [kbn-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kbn-v1.7.3-0-linux-amd64.tar.gz)
* [kgen-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kgen-v1.7.3-0-linux-amd64.tar.gz)
* [homi-v1.7.3-0-linux-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/homi-v1.7.3-0-linux-amd64.tar.gz)

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

Cypress Packages

* [kcn-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kcn-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [kpn-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kpn-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [ken-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ken-v1.7.3-0-darwin-10.10-amd64.tar.gz)

Baobab Packages

* [kcn-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kcn-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [kpn-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kpn-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [ken-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ken-baobab-v1.7.3-0-darwin-10.10-amd64.tar.gz)

Common Packages

* [kscn-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kscn-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [kspn-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kspn-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [ksen-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/ksen-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [kbn-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kbn-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [kgen-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/kgen-v1.7.3-0-darwin-10.10-amd64.tar.gz)
* [homi-v1.7.3-0-darwin-10.10-amd64.tar.gz](https://packages.klaytn.net/klaytn/v1.7.3/homi-v1.7.3-0-darwin-10.10-amd64.tar.gz)

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

* Not supported yet

## Release Notes <a href="#release-notes" id="release-notes"></a>

This version includes changes for the protocol upgrade and enables the upgrade for Baobab network at block #80295291, estimated for January 11th, 2022. All nodes in the Baobab testnet need to be upgraded to this version before the stated block number.

### Protocol Upgrade for Baobab Network

* Introduces BaseFee EVM opcode for Ethereum London EVM compatibility (#1065, #1066, #1096)
* Sets the London EVM hard-fork block number for Baobab network (#1080)

### New Features

* Introduces PN spam throttler (#1092)
* Adds a txpool flag denying remote txs from peers (#1075)
* Updates homi to set hard-fork block numbers (#1070, #1082)

### Improvements

* Enabled parsing of solc v0.8 output format (#1030)

### Fixes

* Updated the version of golang syscall library to support Go 1.17 for darwin/amd64 (#1048)
* Fixed to not drop local transactions when node restarts (#1084)
* Fixed the delayed update of governance data on epoch blocks (#1089)

### Others

* Reverted to Pending Block support (#1064)