Fix console hang on first startup after upgrade#12919
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melissa-barca merged 3 commits intomainfrom Apr 14, 2026
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On first startup after upgrade, extensions are scanned from the pre-bootstrap profile while the shared process installs updated bootstrap extensions. The subsequent delta-update events disrupt the running extension host, causing the console to hang for several minutes. Detect the version mismatch by reading the .version file before scanning extensions. When a mismatch is found, wait for the shared process to finish bootstrap installation before proceeding with the extension scan. This ensures the extension host starts with the correct, post-bootstrap extension list and eliminates the disruptive delta events.
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E2E Tests 🚀 |
Match the logging convention used by the existing bootstrap extension installer, which does not use a prefix.
jmcphers
previously requested changes
Apr 10, 2026
Log a warning when the version file exists but cannot be read, and catch errors from the bootstrap wait so startup is never blocked.
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@timtmok do you mind taking a look at this since Jonathan is out? |
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@melissa-barca Yes, I'll take a look now 👍 |
timtmok
approved these changes
Apr 13, 2026
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timtmok
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timtmok
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It was easy to reproduce this and the fix works for me!
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Addresses #11230.
After upgrading Positron, the first startup can cause the console to hang indefinitely. This is caused by a race condition between bootstrap extension installation and extension scanning. I was only able to reproduce the hang when I had existing bootstrapped extensions in my directory that needed to be upgraded.
With the fix, the extension service waits for bootstrapped extensions to be installed before starting scanning. Instead of the console hanging, users will see a brief pause on the first launch after upgrade while bootstrap extensions install.
Release Notes
New Features
Bug Fixes
QA Notes
@:console @:critical @:extensions
After upgrading Positron, the console should not hang on first launch.