软件升级提案用于表明一个包含新功能、缺陷修复及其他各类改进的 Cosmos Hub 版本已经可用，并已准备好进行生产部署。 软件升级提案应由负责统筹 Cosmos Hub 开发的开发团队提交。

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流程

使用 draft-proposal 命令创建提案草稿，并填充所需信息。 
✗ gaiad tx gov draft-proposal
使用方向键导航：↓ ↑ → ←
? 选择提案类型：
    text
    community-pool-spend
  ▸ software-upgrade # 选择此项
    cancel-software-upgrade
    other

# 填写所有步骤（此处为演示目的，展示全部内容）
输入提案标题：Upgrade v15
输入提案作者：Stewards
输入提案摘要：Upgrade to v15
输入提案详情：<v15 upgrade changelog details>
输入提案论坛 URL：/
输入提案投票选项说明：Vote YES to support running this binary on the Cosmos Hub mainnet.
输入提案押金：100001uatom
输入消息授权者：cosmos10d07y265gmmuvt4z0w9aw880jnsr700j6zn9kn
在你的 draft_proposal.json 中，将 height 填写为期望的升级高度，并在 info 字段中填入附加信息（必须是合法的 JSON 字符串）： 
{
  "binaries": {
    "darwin/amd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-darwin-amd64?checksum=sha256:7157f03fbad4f53a4c73cde4e75454f4a40a9b09619d3295232341fec99ad138",
    "darwin/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-darwin-arm64?checksum=sha256:09e2420151dd22920304dafea47af4aa5ff4ab0ddbe056bb91797e33ff6df274",
    "linux/amd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-linux-amd64?checksum=sha256:236b5b83a7674e0e63ba286739c4670d15d7d6b3dcd810031ff83bdec2c0c2af",
    "linux/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-linux-arm64?checksum=sha256:b055fb7011e99d16a3ccae06443b0dcfd745b36480af6b3e569e88c94f3134d3",
    "windows/armd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-windows-amd64.exe?checksum=sha256:f0224ba914cad46dc27d6a9facd8179aec8a70727f0b1e509f0c6171c97ccf76",
    "windows/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-windows-arm64.exe?checksum=sha256:cbbce5933d501b4d54dcced9b097c052bffdef3fa8e1dfd75f29b34c3ee7de86"
  }
}
将你的 draft_metadata.json 上传到你选择的任意分发平台。draft_proposal.json 用于通过 submit-proposal 提交治理提案。 
gaiad tx gov submit-proposal <path_to_proposal.json>
   --from <submitter address> \
   --chain-id cosmoshub-4 \
   --gas <max gas allocated> \
   --fees <fees allocated> \
   --node <node address> \

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使用 x/upgrading

软件升级提案也可以通过 x/upgrade 模块 提交。最终效果相同，因为 x/gov 模块会将该消息路由到 x/upgrade 模块。

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补充信息

更多包含调试信息的说明可见于提交页面。
Software upgrade proposals are submitted to signal that a Cosmos Hub release with new features, bugfixes and various other improvements is available and ready for production deployment. Software upgrade proposals should be submitted by the development teams tasked with stewarding the Cosmos Hub development.

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Procedure

Use draft-proposal command to create a draft proposal and populate it with required information. 
✗ gaiad tx gov draft-proposal
Use the arrow keys to navigate: ↓ ↑ → ←
? Select proposal type:
    text
    community-pool-spend
  ▸ software-upgrade # choose this
    cancel-software-upgrade
    other

# populate all steps (displaying all for demonstration purposes)
Enter proposal title: Upgrade v15
Enter proposal authors: Stewards
Enter proposal summary: Upgrade to v15
Enter proposal details: <v15 upgrade changelog details>
Enter proposal proposal forum url: /
Enter proposal vote option context: Vote YES to support running this binary on the Cosmos Hub mainnet.
Enter proposal deposit: 100001uatom
Enter msg authority: cosmos10d07y265gmmuvt4z0w9aw880jnsr700j6zn9kn
In your draft_proposal.json populate the height with your desired upgrade height and populate the info field with additional information (must be a valid JSON string): 
{
  "binaries": {
    "darwin/amd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-darwin-amd64?checksum=sha256:7157f03fbad4f53a4c73cde4e75454f4a40a9b09619d3295232341fec99ad138",
    "darwin/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-darwin-arm64?checksum=sha256:09e2420151dd22920304dafea47af4aa5ff4ab0ddbe056bb91797e33ff6df274",
    "linux/amd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-linux-amd64?checksum=sha256:236b5b83a7674e0e63ba286739c4670d15d7d6b3dcd810031ff83bdec2c0c2af",
    "linux/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-linux-arm64?checksum=sha256:b055fb7011e99d16a3ccae06443b0dcfd745b36480af6b3e569e88c94f3134d3",
    "windows/armd64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-windows-amd64.exe?checksum=sha256:f0224ba914cad46dc27d6a9facd8179aec8a70727f0b1e509f0c6171c97ccf76",
    "windows/arm64": "https://github.com/cosmos/gaia/releases/download/v15.0.0/gaiad-v15.0.0-windows-arm64.exe?checksum=sha256:cbbce5933d501b4d54dcced9b097c052bffdef3fa8e1dfd75f29b34c3ee7de86"
  }
}
Upload your draft_metadata.json to a distribution platform of your choice. draft_proposal.json is used to submit a governance proposal using submit-proposal. 
gaiad tx gov submit-proposal <path_to_proposal.json>
   --from <submitter address> \
   --chain-id cosmoshub-4 \
   --gas <max gas allocated> \
   --fees <fees allocated> \
   --node <node address> \

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Using x/upgrading

Software upgrade proposals can be submitted using the x/upgrade module. The end effect will be the same since the x/gov module routes the message to x/upgrade module.

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Additional information

Additional instructions with debugging information is available on the submitting page.