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Public story · 2026-08-26 · high
Session updates broadcast the whole conversation to every subscriber and the durable event log instead of a state diff, fixed August 26.
Why now: Cline shipped the fix on August 26.
Cline's session events copied the full message history into every status update, before an August 26 fix stopped it. On a multi-megabyte task, one status flip sent that whole transcript to every subscriber and into the durable event log.
The growth compounded per event. session.updated, session.created, session.detached, and run.started each carried the same full snapshot, so the hub process gained one transcript copy per state change. One user reported a cline process reaching 25GB on a machine with 16GB of RAM, per SDK v0.0.81, published August 26.
The fix makes snapshots state-only. Transcripts now come through session.messages, pulled on demand and no longer bundled with every event.
The bug stayed invisible in short sessions, where transcripts and events are both small. Long-running agent work, the kind Cline is built for, piled up message history until each status flip carried the whole conversation. The release notes don't say how long the bug ran before anyone noticed.
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Cline uses VS Code / Shared entity: Cline / Same source domain / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Cline uses VS Code); both cover Cline; reported by the same outlet (github.com).
Cline uses VS Code / Shared entity: August / Same source domain / Earlier coverage / Tension
Linked by a graph relationship (Cline uses VS Code); both cover August; reported by the same outlet (github.com).
Cline uses VS Code / Shared entities / Same source domain / Earlier coverage / Tension
Linked by a graph relationship (Cline uses VS Code); both cover Cline, SDK; reported by the same outlet (github.com).
Cline supports MCP / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Cline supports MCP); both cover August, Cline; reported by the same outlet (github.com).
Linked by a graph relationship (Cline supports MCP); both cover August, Cline; reported by the same outlet (github.com).
Cline uses VS Code / Shared entities / Same source domain / Shared topic
Linked by a graph relationship (Cline uses VS Code); both cover August, Cline; reported by the same outlet (github.com).
Cline uses VS Code / Shared entity: August / Shared topic / Earlier coverage
Linked by a graph relationship (Cline uses VS Code); both cover August; overlapping topics (august, each).
Cline benchmarked against Claude Code / Shared entities / Earlier coverage
Linked by a graph relationship (Cline benchmarked against Claude Code); both cover August, Cline; earlier August coverage from 2026-08-13.