[Bug]: Segfault in v2.1.0 pre-built binary on macOS Tahoe 26.3.1 (arm64)

[davidevans-ops]

Bug Description

The pre-built v2.1.0 binary from curl -fsSL https://forgecode.dev/cli | sh segfaults immediately when the model begins streaming a response. This affects both REPL and non-REPL (zsh plugin) modes. All other commands (auth, model switching, config) work fine — the crash only occurs at the moment a model response starts streaming.

Building from source (cargo build --release) on the same machine completely resolves the issue, suggesting an ABI or SDK incompatibility between the pre-built binary and macOS 26 (Tahoe).

Claude Code (v2.1.81) works perfectly on the same machine, confirming there are no network or auth issues.

Environment:

• Forge version: v2.1.0 (pre-built binary via install script)
• macOS: 26.3.1 (Tahoe), build 25D2128
• Chip: Apple Silicon arm64 (Mac16,5)
• Binary: Mach-O 64-bit executable arm64
• Works fine on: WSL and Linux with the same version

Crash details:

• Exception: EXC_BAD_ACCESS (SIGSEGV)
• Subtype: KERN_INVALID_ADDRESS at 0x0000000000000002
• Faulting thread: tokio-rt-worker
• ESR description: Data Abort — byte read Translation fault

Workaround:
Clone the repo and cargo build --release. The locally compiled binary works without issues.

Steps to Reproduce

1. Install Forge via curl -fsSL https://forgecode.dev/cli | sh on macOS Tahoe 26.3.1 (arm64)
2. Authenticate and run forge
3. Enter any prompt (e.g., hello)
4. Observe: zsh: segmentation fault forge

Expected Behavior

The model should respond

Actual Behavior

zsh: segmentation fault forge

Error Logs

Forge Version

2.1.0

Operating System

None

OS Version

No response

AI Provider

None

Model

No response

Installation Method

Other

Configuration