Exit code for type error is incorrect starting from `7.0.0-dev.20250724.1`

[alexsch01]

First happened between versions 7.0.0-dev.20250723.1 and 7.0.0-dev.20250724.1 of @typescript/native-preview

---

index.ts

x=5

[]$ npm install @typescript/native-preview@7.0.0-dev.20250723.1
INSTALL INFO
[]$ npx tsgo --noEmit index.ts
TYPE ERROR
[]$ echo $?
2

[]$ npm install typescript
INSTALL INFO
[]$ npx tsc --noEmit index.ts
TYPE ERROR
[]$ echo $?
2

[]$ npm install @typescript/native-preview@7.0.0-dev.20250724.1
INSTALL INFO
[]$ npx tsgo --noEmit index.ts
TYPE ERROR
[]$ echo $?
1

[jakebailey]

It certainly changed (#1322; @sheetalkamat), but it's also certainly strange for this to be load bearing for your project.

[sheetalkamat]

While the code can change (eg in PR #1484 i am actually changing values of those enums as well) the code seems correct because it represents ExitStatusDiagnosticsPresent_OutputsSkipped which seems to be the case.

[alexsch01]

Accidentally closed the issue but the issue is still happening in newest builds

[safal207]

I reproduced this with the TypeScript 7 RC across all three GitHub-hosted operating systems.

Environment:

• "typescript@7.0.1-rc"
• "@typescript/typescript6@6.0.3"
• Node.js 22
• Ubuntu x64, Windows x64, macOS arm64

For an intentionally invalid project compiled with "--noEmit":

• TypeScript 6.0.3 exits with "2"
• TypeScript 7.0.1 RC exits with "1"
• diagnostic codes match: "TS2322", "TS2345", "TS2741"
• normalized diagnostic text matches on all three platforms
• the only additional raw-text difference observed was CRLF from TS6 vs LF from TS7 on Windows

This was reproduced both in the full evidence run and in subsequent smoke runs. I am posting this as current RC confirmation rather than opening a duplicate issue.

Reproducible harness and report:

• https://github.com/safal207/typescript-7-rc-qa-benchmark
• https://github.com/safal207/typescript-7-rc-qa-benchmark/blob/main/docs/results/2026-06-22-benchmark-v2-full.md

The full run used 1,500 generated modules and 15 measured randomized rounds per scenario on each OS.