Summary
Qwen Code shipped v0.15.3 on April 26, 2026 with a 91% reduction in synchronous I/O on its tool hot path and native context-menu copy actions in its VS Code chat surface. The release pairs a meaningful runtime throughput improvement with smaller UX polish and localization changes.
What changed
Qwen Code released v0.15.3 with a major tool-path performance optimization plus new native copy actions for webview chat in VS Code.
Why it matters
The big signal is the runtime optimization. AI coding tools are increasingly competing on responsiveness during tool-heavy sessions, and a 91% sync-I/O reduction suggests Qwen is investing in execution performance instead of only model access or UI features.
Evidence excerpt
The v0.15.3 release notes say Qwen Code cut runtime sync I/O on the tool hot path by 91% and added native context-menu copy actions for webview chat.