Which GitHub Copilot features in VS Code are currently in preview, and which ones are generally available (GA)?

[muuuuminn]

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In GitHub Copilot for VS Code, which features are currently in preview and which ones are GA? I see the feature list here:
https://docs.github.com/en/copilot/reference/copilot-feature-matrix#vs-code-latest-releases
Is this page the latest source of truth?
However, the list marks the ‘Prompt Files’ feature as supported, while its documentation here describes it as public preview:
https://docs.github.com/en/copilot/tutorials/customization-library/prompt-files/your-first-prompt-file
It seems that the matrix shows whether a feature is available in VS Code, but is there a separate list that specifically indicates whether a feature is GA or in Public Preview?

[easwar16]

Hey @muuuuminn,

Yes — the Copilot feature matrix page is generally the closest thing to a “single source of truth” for which features are available in each environment (VS Code, Visual Studio, JetBrains, etc.). However, it does not always indicate the release status (GA vs Public Preview). Instead, it mainly shows availability in the IDE, not the maturity level of the feature.

Because of that, you may see situations like the one you mentioned:

• The matrix marks Prompt Files as supported in VS Code.
• But the documentation explicitly states that Prompt Files are still in Public Preview.

This means the matrix is indicating “available in VS Code”, not “generally available (GA)”.

Where GA vs Preview status is actually documented

Currently, GitHub doesn’t maintain a single consolidated list of GA vs Public Preview features for Copilot in VS Code. Instead, the status is typically indicated in one of these places:

1. Individual feature documentation pages
   These usually contain a note such as “This feature is in public preview”.
   Example: Prompt Files documentation explicitly says they are public preview and subject to change.

2. GitHub Changelog posts
   When features move from preview → GA, GitHub often announces it there.

3. VS Code settings / preview flags
   Some features require enabling preview flags or policies (for example admin policies allowing preview features).

Practical interpretation

A good rule of thumb:

• Feature matrix → shows where a feature exists (IDE/platform availability).
• Feature documentation or changelog → shows whether it is GA or Preview.

So the discrepancy you noticed is expected:
Prompt Files are available in VS Code, but still in Public Preview, which is why the matrix lists them while the docs mark them as preview.

[ash-iiiiish]

Quick Answer: There is no single separate list that definitively marks every feature as GA or Public Preview. You need to cross-reference multiple sources:

Feature Matrix (Your First Link): This is the best source of truth for availability, using the key:

✓ = Supported (Available in that IDE, but may still be in preview - GA status not guaranteed)

P = Under Preview (Explicitly marked as preview)

✗ = Not supported

C = Closing down

Note: The matrix itself is in public preview.

Feature-Specific Docs (Your Second Link): Always check the dedicated documentation for a feature. It will explicitly state if the feature is in "public preview" (like the Prompt Files page does).

VS Code Release Notes: For the most granular detail, check the release notes for specific VS Code versions (e.g., 1.108.0) to see if a feature was announced as generally available.

Resolution Steps:

To check a feature: First, see if it's marked P in the matrix. If it's ✓, then consult the feature's own documentation page (like you did for Prompt Files) to confirm if it's fully GA or still in preview.

Why the discrepancy: The matrix shows availability in the IDE, while feature docs communicate the release stage.

[muuuuminn]

@easwar16 @ash-iiiiish
Thanks, this helps a lot.
The rule of thumb you shared makes the distinction much clearer.