發布日期：2026-10-15
你在 Windows 上使用 usage 時，若遇到系統關機或程式無預警閃退，硬碟空間常會不知不覺被吃掉。以前每次當掉、強制關閉或隨 Windows 關機，都會在暫存目錄 %TEMP% 留下約 2.5 MB 的 WebView2（微軟讓桌面程式顯示網頁畫面的組件）資料夾。隨著閃退次數增加，這些殘留檔案就會越積越多。現在 usage 改為重複使用 ~/.usage/webview 這一個專屬資料夾，就算異常結束也不會再塞爆暫存區。
當 LiteLLM 價目表下載失敗時，你看到的 Sonnet 5.5 花費可能被高估。usage 平常會連線下載 LiteLLM 價目表，只有在下載失敗時才會啟用備用清單。但這張備援表過去仍記載舊費率，把 Sonnet 5.5 讀取快取（把算過的結果暫存起來直接用）的費用算得太貴。現在這份離線價目表已經修正，讀取計價由每百萬 token（AI 處理與計費的文字單位）$0.20 改為 $0.10，不再把 Sonnet 5.5 的離線花費算高。
你在同專案開多個 Claude Code 視窗或呼叫背景代理時，現在各項操作不再彼此干擾。
以前開啟新視窗進行進度交接，常會誤接隔壁仍在跑的對話；現在會跳過其他開著且 10 分鐘內有寫入的工作階段，剛關閉的視窗仍正常交接。背景任務完成通知、以 ! 執行的指令與無參數斜線指令，也不再被當成最近需求。
自 Claude Code 2.1.299 起，背景子代理或隊友開始回合時會誤觸訊號，清空輸入框上方的新手模式名詞；現在只有主對話展開新回合才會清除，挑字不再被中途打斷。
When using usage on Windows, system shutdowns or unexpected crashes used to quietly eat up disk space. Previously, every crash, forced quit, or Windows shutdown left behind a WebView2 (Microsoft's component for rendering web content in desktop apps) folder of about 2.5 MB in the %TEMP% directory. As crashes piled up, these leftover files continued to accumulate. Now usage reuses a single dedicated ~/.usage/webview folder, so abnormal exits will no longer fill up the temp directory.
If downloading the LiteLLM pricing table fails, Sonnet 5.5 costs might be overestimated. usage normally connects to download the LiteLLM pricing table, activating the fallback list only when that download fails. However, this fallback table previously retained outdated rates, pricing Sonnet 5.5 cache reads too expensively. Now this offline price table has been corrected, updating read pricing from $0.20 to $0.10 per million tokens (the text units for AI processing and billing), so Sonnet 5.5 offline expenses are no longer overestimated.
When opening multiple Claude Code windows or calling background agents in the same project, operations no longer interfere with one another.
Previously, opening a new window for progress handoff often mistakenly attached to an ongoing conversation next door; now, sessions that remain open with writes within 10 minutes are skipped, while recently closed windows still hand off normally. Background task completion notifications, commands run with !, and slash commands without arguments are also no longer treated as recent requests.
Since Claude Code 2.1.299, when background subagents or teammates started a turn, they accidentally triggered a signal that cleared Beginner Mode terms above the input box; now, they are cleared only when the main conversation starts a new turn, so selecting words is no longer interrupted midway.
**Windows: usage no longer leaves a WebView2 folder in %TEMP% after each abnormal exit.** Each crash, forced close or shutdown with Windows previously left about 2.5 MB behind. usage now reuses one dedicated folder under `~/.usage/webview`.**Sonnet 5.5 cache reads in the offline price table cost $0.10 per million tokens.** The table, used only when the LiteLLM download fails, still charged $0.20, so offline Sonnet 5.5 spending was overstated.**Session resume no longer hands over another open window's work.** With several Claude Code windows in one project, a new window picked up whichever session was written last, often a neighbour still running. Sessions another window has open and wrote to in the last 10 minutes are now skipped; a window you just closed is still handed over. Background-task notices, `!` shell runs and bare slash commands no longer show up as your recent requests.
**Beginner Mode's terms stay up while background agents work.** Since Claude Code 2.1.299, a subagent or teammate starting its own turn also signals a new turn, which cleared the terms above the prompt and dropped the ones still being picked. Only a new turn in the main conversation clears them now.