npm / @colyseus/sdk

@colyseus/sdk

What changed in @colyseus/sdk 0.18, from its official release notes, upgrade guides and advisories. Sources checked 2026-11-02.

4 breaking1 behavior and defaults6 fixes and other

See which of these apply to your code, ranked, in your agent:

npx @unstale/cli init

@colyseus/sdk 0.1811 changes

Script-tag apps must load this file before the first join.
0.18.9release notes
Going offline in the browser now closes every open connection, not every other one.
0.18.7release notes
If a listener throws, the other listeners and subsequent room actions still run; the first error is rethrown after all listeners have run.
0.18.7release notes
In Node 22, a room keeps retrying while the server is unreachable instead of giving up after the first failed attempt.
0.18.7release notes

Debug tooling is only wired up when this module is imported.
0.18.9release notes

Safari no longer logs an incorrect WebSocket protocol error each time a room connects.
0.18.8release notes
A connection that never opened no longer keeps another room's connection open when the browser goes offline.
0.18.7release notes
While reconnecting, leave() now stops reconnection and resolves immediately with CloseCode.CONSENTED; before the join completes, it leaves as soon as it does.
0.18.7release notes
In Node 22, calling leave(false) from onError during a failed reconnection attempt no longer recurses.
0.18.7release notes
A throwing onDrop listener no longer leaves the room's socket open.
0.18.7release notes
A throwing onLeave listener no longer leaves the room's socket open.
0.18.7release notes