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1 | 1 | # Changelog |
2 | 2 |
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3 | | -| Version | Release date | |
4 | | -|------------------------------------------------------------------------------------------------------|----------------| |
5 | | -| [6.6.5](#665-2025-12-22) | December 2025 | |
6 | | -| [6.6.4](#664-2025-01-28) | January 2025 | |
7 | | -| [6.6.3](#663-2025-01-23) | January 2025 | |
8 | | -| [6.6.2](#662-2024-10-09) | October 2024 | |
9 | | -| [6.6.1](#661-2024-09-21) | September 2024 | |
10 | | -| [6.6.0](#660-2024-06-21) | June 2024 | |
11 | | -| [6.5.5](#655-2024-06-18) (from the [6.5.x](https://github.com/socketio/engine.io/tree/6.5.x) branch) | June 2024 | |
12 | | -| [3.6.2](#362-2024-06-18) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | June 2024 | |
13 | | -| [6.5.4](#654-2023-11-09) | November 2023 | |
14 | | -| [6.5.3](#653-2023-10-06) | October 2023 | |
15 | | -| [6.5.2](#652-2023-08-01) | August 2023 | |
16 | | -| [6.5.1](#651-2023-06-27) | June 2023 | |
17 | | -| [6.5.0](#650-2023-06-16) | June 2023 | |
18 | | -| [6.4.2](#642-2023-05-02) | May 2023 | |
19 | | -| [6.4.1](#641-2023-02-20) | February 2023 | |
20 | | -| [6.4.0](#640-2023-02-06) | February 2023 | |
21 | | -| [6.3.1](#631-2023-01-12) | January 2023 | |
22 | | -| [6.3.0](#630-2023-01-10) | January 2023 | |
23 | | -| [3.6.1](#361-2022-11-20) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | November 2022 | |
24 | | -| [6.2.1](#621-2022-11-20) | November 2022 | |
25 | | -| [3.6.0](#360-2022-06-06) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | June 2022 | |
26 | | -| [6.2.0](#620-2022-04-17) | April 2022 | |
27 | | -| [6.1.3](#613-2022-02-23) | February 2022 | |
28 | | -| [6.1.2](#612-2022-01-18) | January 2022 | |
29 | | -| [6.1.1](#611-2022-01-11) | January 2021 | |
30 | | -| [6.1.0](#610-2021-11-08) | November 2022 | |
31 | | -| [6.0.1](#601-2021-11-06) | November 2021 | |
32 | | -| [**6.0.0**](#600-2021-10-08) | October 2021 | |
33 | | -| [5.2.0](#520-2021-08-29) | August 2021 | |
34 | | -| [5.1.1](#511-2021-05-16) | May 2021 | |
35 | | -| [5.1.0](#510-2021-05-04) | May 2021 | |
36 | | -| [**5.0.0**](#500-2021-03-10) | March 2021 | |
37 | | -| [4.1.1](#411-2021-02-02) | February 2021 | |
38 | | -| [4.1.0](#410-2021-01-14) | January 2021 | |
39 | | -| [4.0.6](#406-2021-01-04) | January 2021 | |
40 | | -| [3.5.0](#350-2020-12-30) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | December 2020 | |
41 | | -| [4.0.5](#405-2020-12-07) | December 2020 | |
42 | | -| [4.0.4](#404-2020-11-17) | November 2020 | |
43 | | -| [4.0.3](#403-2020-11-17) | November 2020 | |
44 | | -| [4.0.2](#402-2020-11-09) | November 2020 | |
45 | | -| [4.0.1](#401-2020-10-21) | October 2020 | |
46 | | -| [**4.0.0**](#400-2020-09-10) | September 2020 | |
47 | | -| [3.4.2](#342-2020-06-04) | June 2020 | |
48 | | -| [3.4.1](#341-2020-04-17) | April 2020 | |
| 3 | +| Version | Release date | `ws` version | |
| 4 | +|------------------------------------------------------------------------------------------------------|----------------|--------------| |
| 5 | +| [6.6.6](#666-2026-03-10) | March 2026 | `"` | |
| 6 | +| [6.6.5](#665-2025-12-22) | December 2025 | `~8.18.3` | |
| 7 | +| [6.6.4](#664-2025-01-28) | January 2025 | `"` | |
| 8 | +| [6.6.3](#663-2025-01-23) | January 2025 | `"` | |
| 9 | +| [6.6.2](#662-2024-10-09) | October 2024 | `"` | |
| 10 | +| [6.6.1](#661-2024-09-21) | September 2024 | `"` | |
| 11 | +| [6.6.0](#660-2024-06-21) | June 2024 | `"` | |
| 12 | +| [6.5.5](#655-2024-06-18) (from the [6.5.x](https://github.com/socketio/engine.io/tree/6.5.x) branch) | June 2024 | `~8.17.1` | |
| 13 | +| [3.6.2](#362-2024-06-18) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | June 2024 | `~7.5.10` | |
| 14 | +| [6.5.4](#654-2023-11-09) | November 2023 | `"` | |
| 15 | +| [6.5.3](#653-2023-10-06) | October 2023 | `"` | |
| 16 | +| [6.5.2](#652-2023-08-01) | August 2023 | `"` | |
| 17 | +| [6.5.1](#651-2023-06-27) | June 2023 | `"` | |
| 18 | +| [6.5.0](#650-2023-06-16) | June 2023 | `"` | |
| 19 | +| [6.4.2](#642-2023-05-02) | May 2023 | `"` | |
| 20 | +| [6.4.1](#641-2023-02-20) | February 2023 | `"` | |
| 21 | +| [6.4.0](#640-2023-02-06) | February 2023 | `"` | |
| 22 | +| [6.3.1](#631-2023-01-12) | January 2023 | `"` | |
| 23 | +| [6.3.0](#630-2023-01-10) | January 2023 | `~8.11.0` | |
| 24 | +| [3.6.1](#361-2022-11-20) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | November 2022 | `"` | |
| 25 | +| [6.2.1](#621-2022-11-20) | November 2022 | `"` | |
| 26 | +| [3.6.0](#360-2022-06-06) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | June 2022 | `"` | |
| 27 | +| [6.2.0](#620-2022-04-17) | April 2022 | `"` | |
| 28 | +| [6.1.3](#613-2022-02-23) | February 2022 | `"` | |
| 29 | +| [6.1.2](#612-2022-01-18) | January 2022 | `"` | |
| 30 | +| [6.1.1](#611-2022-01-11) | January 2021 | `"` | |
| 31 | +| [6.1.0](#610-2021-11-08) | November 2022 | `"` | |
| 32 | +| [6.0.1](#601-2021-11-06) | November 2021 | `"` | |
| 33 | +| [**6.0.0**](#600-2021-10-08) | October 2021 | `~8.2.3` | |
| 34 | +| [5.2.0](#520-2021-08-29) | August 2021 | `"` | |
| 35 | +| [5.1.1](#511-2021-05-16) | May 2021 | `"` | |
| 36 | +| [5.1.0](#510-2021-05-04) | May 2021 | `"` | |
| 37 | +| [**5.0.0**](#500-2021-03-10) | March 2021 | `"` | |
| 38 | +| [4.1.1](#411-2021-02-02) | February 2021 | `"` | |
| 39 | +| [4.1.0](#410-2021-01-14) | January 2021 | `"` | |
| 40 | +| [4.0.6](#406-2021-01-04) | January 2021 | `"` | |
| 41 | +| [3.5.0](#350-2020-12-30) (from the [3.x](https://github.com/socketio/engine.io/tree/3.x) branch) | December 2020 | `~7.4.2` | |
| 42 | +| [4.0.5](#405-2020-12-07) | December 2020 | `"` | |
| 43 | +| [4.0.4](#404-2020-11-17) | November 2020 | `"` | |
| 44 | +| [4.0.3](#403-2020-11-17) | November 2020 | `"` | |
| 45 | +| [4.0.2](#402-2020-11-09) | November 2020 | `"` | |
| 46 | +| [4.0.1](#401-2020-10-21) | October 2020 | `"` | |
| 47 | +| [**4.0.0**](#400-2020-09-10) | September 2020 | `"` | |
| 48 | +| [3.4.2](#342-2020-06-04) | June 2020 | `"` | |
| 49 | +| [3.4.1](#341-2020-04-17) | April 2020 | `^7.1.2` | |
| 50 | + |
| 51 | +## [6.6.6](https://github.com/socketio/socket.io/compare/engine.io@6.6.5...engine.io@6.6.6) (2026-03-10) |
| 52 | + |
| 53 | + |
| 54 | +### Bug Fixes |
| 55 | + |
| 56 | +* add `@types/ws` as dependency ([#5458](https://github.com/socketio/socket/issues/5458)) ([07cbe15](https://github.com/socketio/socket/commit/07cbe1510ded7e5460cb82e026e2533e50e30eaf)) |
| 57 | +* **uws** emit initial_headers and headers events in uServer ([#5460](https://github.com/socketio/socket/issues/5460)) ([44ed73f](https://github.com/socketio/socket/commit/44ed73f53995d35ef0c8d10df6806d5687238282)) |
| 58 | + |
| 59 | + |
| 60 | +### Dependencies |
| 61 | + |
| 62 | +- [`ws@~8.18.3`](https://github.com/websockets/ws/releases/tag/8.18.3) (no change) |
| 63 | + |
49 | 64 |
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50 | 65 |
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51 | 66 | ## [6.6.5](https://github.com/socketio/socket.io/compare/engine.io@6.6.4...engine.io@6.6.5) (2025-12-22) |
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