aws-cdk-lib: NODEJS_LATEST still points to nodejs18.x

[MunchyYDL]

Describe the bug

NODEJS_LATEST points to nodejs18.x even though nodejs20.x is available.

Not exactly sure if this should be considered a bug or a feature request?

I tried searching for any information regarding if the NODEJS_LATEST value change should be delayed because of some reason but couldn't find anything. Tried to ask about it here as well #28046, but haven't received any response there yet.

Expected Behavior

NODEJS_LATEST should return nodejs20.x

Current Behavior

NODEJS_LATEST returns nodejs18.x
This is where you can find the code: aws-cdk-lib/aws-lambda/lib/runtime.js

  /**
   * The latest NodeJS version currently available
   */
  public static readonly NODEJS_LATEST = new Runtime('nodejs18.x', RuntimeFamily.NODEJS, { supportsInlineCode: true, isVariable: true });

Reproduction Steps

Just use the NODEJS_LATEST

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.110.1 (build 0d37f0d)

Framework Version

No response

Node.js Version

v20.9.0

OS

macOS

Language

TypeScript

Language Version

TypeScript v5.2.2

Other information

No response

[khushail]

Hi @MunchyYDL , Thnaks for reaching out. There is already work being done on upgrading the lambda runtime to NodeJS20 as the latest. It is being tracked here.

[MunchyYDL]

HI @khushail, thanks for the information, I will close my own attempts to fix this then, and leave it to you guys! 👍

[github-actions]

⚠️COMMENT VISIBILITY WARNING⚠️

Comments on closed issues are hard for our team to see.
If you need more assistance, please either tag a team member or open a new issue that references this one.
If you wish to keep having a conversation with other community members under this issue feel free to do so.

[kaizencc]

Reopening this because #27003 tracks CDK's transition from node18 to node20 in our underlying custom resources. This ticket tracks NODEJS_LATEST's move to node20, which will happen when the runtime exists in all regions.

[MunchyYDL]

Sorry, I thought you meant that there were other issues tracking this, I just wanted to clean up after myself.

And oh, do you have any more information about when nodejs20.x will be available in all regions, as my impressions from this article: Node.js 20.x runtime now available in AWS Lambda, was that it was available everywhere. 🤔
Or do you know where I can find more information about it?

That was actually some of my initial concerns, that I couldn't find any rules about if NODEJS_LATEST was supposed to still point to nodejs18.x or not.