fix(update): bypass GitHub raw CDN cache for self-update#22
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The `crab update` command was reporting "Already up to date" even after a new version was merged, because raw.githubusercontent.com serves cached content (max-age=300). Add cache-busting via Cache-Control header and timestamp query param. Also validate the downloaded file contains a version string before replacing the binary. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Mar 18, 2026
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Summary
crab updatewas always reporting "Already up to date" after a new version was merged becauseraw.githubusercontent.comserves cached content (max-age=300)Cache-Control: no-cacheheader and a timestamp query parameter to force fresh downloadsTest plan
crab updateimmediately after merging a version bump — should detect the new version instead of reporting "Already up to date"crab updatewhen already on latest — should correctly report "Already up to date"🤖 Generated with Claude Code