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E2B spreads sandbox envd traffic across four HTTP/2 connection pools to stop long agent streams contending
@e2b/python-sdk 2.46.2 and 2.46.4, released 2026-09-02T19:08Z and 20:48Z, default to spreading envd traffic across four HTTP/2 connection pools so high-concurrency long-running streams do not all contend for a single connection's stream limit, tunable via `E2B_ENVD_POOL_SHARDS` set before SDK import. Anyone running many concurrent agent sandboxes was hitting HTTP/2 per-connection stream caps without an obvious symptom. The same window shipped @e2b/desktop-python 2.4.6, which waits for the XFCE session to be fully ready before returning a new Desktop sandbox and cleans up the sandbox if desktop startup fails.
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