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UpgradeTransportError cache fallback

Category: gotcha

Confidence: 1.00

ID: 01a08a6f-9330-77a3-8aae-074fe2622922

Project ID: c760f4f9-42b0-4ce0-b36d-6b8c38d770b2

Cross-project: No

Recalled in other projects: 1

Source session: 0F4SZd0XgbTzj1F9C

Created: 2026-09-10 08:29:23

Updated: 2026-09-10 08:29:23

Cross-Project Recalls

Project	Hits	Last recalled
opencode-lore	2	13h ago

Content

Trap: treating every UpgradeError("network_error") as cache-fallback eligible looks reasonable because HTTP, malformed metadata, and transport failures share a reason code, but it lets untrusted or invalid responses silently select stale targets. Fix: curl upgrades may use cached targets only after UpgradeTransportError; HTTP/status and metadata failures remain fail-closed. Package-manager methods never fall back offline because installation requires network access.