https://github.com/architect/lambda-runtimes
Canonical list of AWS Lambda runtime identifiers and corresponding CPU architectures
https://github.com/architect/lambda-runtimes
Last synced: 2 months ago
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Canonical list of AWS Lambda runtime identifiers and corresponding CPU architectures
- Host: GitHub
- URL: https://github.com/architect/lambda-runtimes
- Owner: architect
- Created: 2021-10-14T02:45:26.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2025-12-24T21:29:41.000Z (6 months ago)
- Last Synced: 2025-12-25T15:50:37.541Z (6 months ago)
- Language: JavaScript
- Size: 49.8 KB
- Stars: 4
- Watchers: 2
- Forks: 4
- Open Issues: 1
-
Metadata Files:
- Readme: readme.md
- Changelog: changelog.md
- Contributing: .github/contributing.md
- Code of conduct: .github/code_of_conduct.md
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README
# AWS Lambda runtimes
## A list of officially AWS Lambda runtimes organized by name
### Installation
`npm i lambda-runtimes`
### Usage
```js
// esm
import {
runtimes,
runtimeVersions,
runtimeList,
runtimesByArchitecture,
architecturesByRuntime,
aliases,
retiredRuntimes,
} from 'lambda-runtimes'
```
```js
// cjs
let {
runtimes,
runtimeVersions,
runtimeList,
runtimesByArchitecture,
architecturesByRuntime,
aliases,
retiredRuntimes,
} = require('lambda-runtimes')
```
`lambda-runtimes` exports seven items:
- **`runtimes`** (object) - Lambda runtime strings, organized by runtime name
- Example: `runtimes.node[0]` → `nodejs20.x`
- Where appropriate, each runtime may include (lowcase normalized) aliases, e.g. `runtimes.node` === `runtimes.nodejs` === `runtimes.['node.js']`
- **`runtimeVersions`** (object) - Semver representations of each Lambda runtime
- Example: `runtimeVersions['nodejs20.x']` returns an object with `major: '20'`, `minor: null`, `patch: null`, and `wildcard: '20.*.*'` properties
- **`runtimeList`** (array) - list of all Lambda runtime strings (order not necessarily guaranteed)
- **`runtimesByArchitecture`** (object) - list of Lambda runtimes supported by each CPU architecture
- Example: `runtimesByArchitecture.arm64[0]` → `nodejs20.x`)
- **`architecturesByRuntime`** (object) - list of Lambda CPU architectures supported by each runtime
- Example: `architecturesByRuntime['nodejs20.x']` → `[ 'arm64', 'x86_64' ]`)
- **`aliases`** (object) - shorthand or alternate names for runtime aliases (e.g. `py` for `python`)
- **`retiredRuntimes`** (object) - retired / EOL Lambda runtime strings, organized by runtime name
- Example: `retiredRuntimes.node[0]` → `nodejs10.x`
Example:
```js
{
runtimes: {
node: [ 'nodejs20.x', 'nodejs18.x' ],
...
},
runtimeVersions: {
'nodejs20.x': { major: '20', minor: null, patch: null, wildcard: '20.*.*' },
...
},
runtimeList: [ 'nodejs20.x', 'nodejs18.x', ... ],
runtimesByArchitecture: {
arm64: [ 'nodejs20.x', 'nodejs18.x', ... ],
x86_64: [ 'nodejs20.x', 'nodejs18.x', ... ]
},
architecturesByRuntime: {
'nodejs20.x': [ 'arm64', 'x86_64' ],
'nodejs18.x': [ 'arm64', 'x86_64' ],
...
},
aliases: {
nodejs: 'node',
...
},
retiredRuntimes: {
node: [ 'nodejs10.x', ... ],
...
},
}
```
### Resources
- [AWS Lambda runtimes list](https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html)
- [AWS Lambda runtime support policy](https://docs.aws.amazon.com/lambda/latest/dg/runtime-support-policy.html)