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# v0.5.68 — Summer just got a lot steadier

Released September 15, 2026

## Highlights

* Way fewer crashes — hardened GPU teardown, rendering, and input handling
* Windows: cleaner focus after activation and better crash reporting
* Steadier shell and command handling, even through shutdown

## Changes

Fixed
* Rendering: discard canvas passes after failed instance-buffer mapping; retry failed UMA allocations; guard preview readback
* Input: bound the input-action cache and clear orphaned pressed actions on focus loss
* Shell/command executor: deadlines independent of frame ticks, safe cancel and exit-ownership through editor shutdown
* Editor: guard deferred callbacks, doc lifecycle, and file edits (raw base receipts) across reload and teardown
* Windows: cleaner chat focus after activation and engine-owned crash-dump collection with matching symbols
* Studio: read generated downloads asynchronously

Source: https://www.summerengine.com/changelog/0.5.68

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## Machine-readable resources

- Site index for agents: https://www.summerengine.com/llms.txt
- Full inlined content: https://www.summerengine.com/llms-full.txt
- Porting catalog: https://www.summerengine.com/llms-porting.txt
- Structured catalog: https://www.summerengine.com/agent-catalog.json
- Sitemap: https://www.summerengine.com/sitemap.xml
- Developer resources: https://www.summerengine.com/docs