## What's Changed
* feat(mcp): improve OAuth auth UX - post-auth feedback, i18n, clear auth, and bug fixes by @LaZzyMan in https://github.com/QwenLM/qwen-code/pull/2327
* fix(ide): resolve IDE connection issues in some VSCode clients and optimize connection config lookup by @yiliang114 in https://github.com/QwenLM/qwen-code/pull/2322
* fix(core): correct GPT-5.x input token limit to 272K by @tanzhenxin in https://github.com/QwenLM/qwen-code/pull/2345
* fix(shell): pass args as string on Windows to prevent quoting issues by @tanzhenxin in https://github.com/QwenLM/qwen-code/pull/2347
* fix(core): disable node-pty on older Windows builds with broken ConPTY by @tanzhenxin in https://github.com/QwenLM/qwen-code/pull/2349
* fix: improve qwen mcp add option handling for arrays by @yshngg in https://github.com/QwenLM/qwen-code/pull/2245
* fix(cli): prevent Ctrl+F from leaking to PTY as ^F artifact by @tanzhenxin in https://github.com/QwenLM/qwen-code/pull/2350
* fix(core): remove duplicate exports in packages/core/src/index.ts by @wenshao in https://github.com/QwenLM/qwen-code/pull/2265
* chore(release): bump version to 0.12.3 by @tanzhenxin in https://github.com/QwenLM/qwen-code/pull/2351
* Refactors `FileSystemService` interface to use ACP-aligned request/response objects by @LaZzyMan in https://github.com/QwenLM/qwen-code/pull/2344
## New Contributors
* @yshngg made their first contribution in https://github.com/QwenLM/qwen-code/pull/2245
**Full Changelog**: https://github.com/QwenLM/qwen-code/compare/v0.12.2...v0.12.2-preview.1