[Bug] Claude 3.5 Sonnet model performance regression compared to previous versions

Bug Description
Opus 4.7 sucks! Even 4.6 good. I'm going back to sonet

Environment Info

• Platform: win32
• Terminal: vscode
• Version: 2.1.119
• Feedback ID: d1f2496f-7344-4322-ae61-9bfa76c04824

Errors

[{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: ECONNREFUSED\n    at b51 (B:/~BUN/root/src/entrypoints/cli.js:2790:17141)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T11:08:29.133Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: ECONNREFUSED\n    at b51 (B:/~BUN/root/src/entrypoints/cli.js:2790:17141)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T11:08:29.137Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: ECONNREFUSED\n    at b51 (B:/~BUN/root/src/entrypoints/cli.js:2790:17141)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T17:45:32.370Z"},{"error":"Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: ECONNREFUSED\n    at b51 (B:/~BUN/root/src/entrypoints/cli.js:2790:17141)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T17:45:32.371Z"}]