Bump socket.io from 3.1.2 to 4.0.0

[dependabot]

Bumps socket.io from 3.1.2 to 4.0.0.

Release notes

Sourced from socket.io's releases.

4.0.0

Blog post: https://socket.io/blog/socket-io-4-release/ Migration guide: https://socket.io/docs/v3/migrating-from-3-x-to-4-0/

Bug Fixes

• make io.to(...) immutable (ac9e8ca)

Features

• add some utility methods (b25495c)
• add support for typed events (#3822) (0107510)
• allow to exclude specific rooms when broadcasting (#3789) (7de2e87)
• allow to pass an array to io.to(...) (085d1de)

BREAKING CHANGES

• io.to(...) now returns an immutable operator

Previously, broadcasting to a given room (by calling io.to()) would mutate the io instance, which could lead to surprising behaviors, like:

io.to("room1");
io.to("room2").emit(/* ... */); // also sent to room1
// or with async/await
io.to("room3").emit("details", await fetchDetails()); // random behavior: maybe in room3, maybe to all clients

Calling io.to() (or any other broadcast modifier) will now return an immutable instance.

Links:

• Diff: socketio/socket.io@3.1.2...4.0.0
• Client release: 4.0.0
• engine.io version: ~5.0.0
• ws version: ~7.4.2

Changelog

Sourced from socket.io's changelog.

4.0.0 (2021-03-10)

Bug Fixes

• make io.to(...) immutable (ac9e8ca)

Features

• add some utility methods (b25495c)
• add support for typed events (#3822) (0107510)
• allow to exclude specific rooms when broadcasting (#3789) (7de2e87)
• allow to pass an array to io.to(...) (085d1de)

Commits

• 5eaeffc chore(release): 4.0.0
• 1b6d6de chore: include Engine.IO v5
• 0107510 feat: add support for typed events (#3822)
• b25495c feat: add some utility methods
• 085d1de feat: allow to pass an array to io.to(...)
• ac9e8ca fix: make io.to(...) immutable
• 7de2e87 feat: allow to exclude specific rooms when broadcasting (#3789)
• See full diff in compare view

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