CLAUDE_CODE_STREAM_EVENT_NO_SUBSCRIBER_HOLD_MS

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.319, including the newest one read.

Releases whose published page names CLAUDE_CODE_STREAM_EVENT_NO_SUBSCRIBER_HOLD_MS.

1. v2.1.319 6 Nov 2026
   New switch to turn off skipping the goodbye on resume

   Setting CLAUDE_CODE_DISABLE_RESUME_LOAD_GOODBYE_SKIP now stops Claude Code skipping the worker's goodbye while a resumed session loads

   found in this entry's text

2. v2.1.319 6 Nov 2026
   Streaming output can be held longer when nobody is watching

   A host can now tell Claude Code nobody is watching its output, so streaming events are held for the longer CLAUDE_CODE_STREAM_EVENT_NO_SUBSCRIBER_HOLD_MS time

   found in this entry's text

3. v2.1.319 6 Nov 2026
   New environment variables for transcript loading, streaming and CPU sampling

   Claude Code now recognises several new environment variables tied to loading saved sessions, holding streamed output, and sampling CPU use

   found in this entry's text

The earliest release whose published evidence quoted CLAUDE_CODE_STREAM_EVENT_NO_SUBSCRIBER_HOLD_MS was v2.1.319, 6 Nov 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.