Update dependency mqtt to v5 #426

browser: ensure proxy is defined (ffc9805)
browser: prevent error stream.push() after EOF (#1915) (b5cc835), closes #1914
test: close open connections (#1911) (053a7be)

`v5.9.0`

Compare Source

Bug Fixes

test: close all open connections in abstract_client test (#1917) (661c30a)
types: unsubscribe options type (#1921) (18a357c)

Features

add suback packet to subscribe callback (#1923) (93f4482)
add unsubscribe ack packet to the unsubscribe callback (#1922) (8bcf304)

5.9.1 (2024-08-01)

Bug Fixes

browser: ensure proxy is defined (ffc9805)
browser: prevent error stream.push() after EOF (#1915) (b5cc835), closes #1914
test: close open connections (#1911) (053a7be)

`v5.8.1`

Compare Source

Bug Fixes

tets hang up (#1906) (c462530)
types: add connectAsync overload signature with allowRetries (#1909) (6b278dc)

Features

add forceNativeWebSocket client option (#1910) (103d172), closes #1796 #1895

5.8.1 (2024-07-18)

Bug Fixes

connect after client.end not working (#1902) (fbe5294)
reschedule pings problem (#1904) (8e14d3e)

`v5.8.0`

Compare Source

Bug Fixes

tets hang up (#1906) (c462530)
types: add connectAsync overload signature with allowRetries (#1909) (6b278dc)

Features

add forceNativeWebSocket client option (#1910) (103d172), closes #1796 #1895

5.8.1 (2024-07-18)

Bug Fixes

connect after client.end not working (#1902) (fbe5294)
reschedule pings problem (#1904) (8e14d3e)

`v5.7.3`

Compare Source

Features

add compatibility with txiki.js (#1895) (37b08c9)
allow to pass custom timer for keepalive manager (#1896) (ee81184)

5.7.3 (2024-06-26)

Bug Fixes

wechat: do not ignore path with wx protocol (#1894) (300c0b4), closes #1892

5.7.2 (2024-06-19)

Bug Fixes

security: bump ws@8.17.1 and other audit issues (#1891) (096baaa)

5.7.1 (2024-06-18)

Bug Fixes

suback Error Codes Handling (#1887) (2a98e5e)

`v5.7.2`

Compare Source

Features

add compatibility with txiki.js (#1895) (37b08c9)
allow to pass custom timer for keepalive manager (#1896) (ee81184)

5.7.3 (2024-06-26)

Bug Fixes

wechat: do not ignore path with wx protocol (#1894) (300c0b4), closes #1892

5.7.2 (2024-06-19)

Bug Fixes

security: bump ws@8.17.1 and other audit issues (#1891) (096baaa)

5.7.1 (2024-06-18)

Bug Fixes

suback Error Codes Handling (#1887) (2a98e5e)

`v5.7.1`

Compare Source

Features

add compatibility with txiki.js (#1895) (37b08c9)
allow to pass custom timer for keepalive manager (#1896) (ee81184)

5.7.3 (2024-06-26)

Bug Fixes

wechat: do not ignore path with wx protocol (#1894) (300c0b4), closes #1892

5.7.2 (2024-06-19)

Bug Fixes

security: bump ws@8.17.1 and other audit issues (#1891) (096baaa)

5.7.1 (2024-06-18)

Bug Fixes

suback Error Codes Handling (#1887) (2a98e5e)

`v5.7.0`

Compare Source

Features

add compatibility with txiki.js (#1895) (37b08c9)
allow to pass custom timer for keepalive manager (#1896) (ee81184)

5.7.3 (2024-06-26)

Bug Fixes

wechat: do not ignore path with wx protocol (#1894) (300c0b4), closes #1892

5.7.2 (2024-06-19)

Bug Fixes

security: bump ws@8.17.1 and other audit issues (#1891) (096baaa)

5.7.1 (2024-06-18)

Bug Fixes

suback Error Codes Handling (#1887) (2a98e5e)

`v5.6.2`

Compare Source

Features

add unixSocket option and +unix suffix support to protocol (#1874) (1004c78)

5.6.2 (2024-05-23)

Bug Fixes

prevent url.parse to set path option (#1871) (de0174f), closes #1870

5.6.1 (2024-05-17)

Bug Fixes

update is-browser.ts to account undefined navigator (#1868) (0111a7a), closes /github.com/mqttjs/MQTT.js/commit/6a03d29b86dc4fe8eae04eaf0f9fc661f1c3d1ea#commitcomment-142114121 /github.com/mqttjs/MQTT.js/pull/1868#pullrequestreview-2062507553

`v5.6.1`

Compare Source

Features

add unixSocket option and +unix suffix support to protocol (#1874) (1004c78)

5.6.2 (2024-05-23)

Bug Fixes

prevent url.parse to set path option (#1871) (de0174f), closes #1870

5.6.1 (2024-05-17)

Bug Fixes

update is-browser.ts to account undefined navigator (#1868) (0111a7a), closes /github.com/mqttjs/MQTT.js/commit/6a03d29b86dc4fe8eae04eaf0f9fc661f1c3d1ea#commitcomment-142114121 /github.com/mqttjs/MQTT.js/pull/1868#pullrequestreview-2062507553

`v5.6.0`

Compare Source

Features

add unixSocket option and +unix suffix support to protocol (#1874) (1004c78)

5.6.2 (2024-05-23)

Bug Fixes

prevent url.parse to set path option (#1871) (de0174f), closes #1870

5.6.1 (2024-05-17)

Bug Fixes

update is-browser.ts to account undefined navigator (#1868) (0111a7a), closes /github.com/mqttjs/MQTT.js/commit/6a03d29b86dc4fe8eae04eaf0f9fc661f1c3d1ea#commitcomment-142114121 /github.com/mqttjs/MQTT.js/pull/1868#pullrequestreview-2062507553

`v5.5.6`

Compare Source

Features

keepalive manager (#1865) (bad160a)

5.5.6 (2024-05-13)

Bug Fixes

do not shift pings on 'publish' packets (#1866) (e4d4663), closes #1863 #1861
electron: detect electron context (#1856) (6a03d29)
ws: ignored host option and default hostname in browser (c6580a6), closes #1730

5.5.5 (2024-04-30)

Bug Fixes

keepalive issues (#1855) (4f242f4)

5.5.4 (2024-04-26)

Bug Fixes

allow to use unix sockets in connect (#1852) (22c97b5), closes #1040
react-native: process.nextTick is not a function error (#1849) (f62e207)

5.5.3 (2024-04-19)

Bug Fixes

possible race condition in ping timer (#1848) (0b7d687), closes #1845
wrong mqttjs version printed (#1847) (a24cf14)

5.5.2 (2024-04-12)

Bug Fixes

react-native: error Cannot create URL for blob (#1840) (fc8fafb)

5.5.1 (2024-04-10)

Bug Fixes

browser: uncaught error when stream is destroyed with error (380f286), closes #1839

`v5.5.5`

Compare Source

Features

keepalive manager (#1865) (bad160a)

5.5.6 (2024-05-13)

Bug Fixes

do not shift pings on 'publish' packets (#1866) (e4d4663), closes #1863 #1861
electron: detect electron context (#1856) (6a03d29)
ws: ignored host option and default hostname in browser (c6580a6), closes #1730

5.5.5 (2024-04-30)

Bug Fixes

keepalive issues (#1855) (4f242f4)

5.5.4 (2024-04-26)

Bug Fixes

allow to use unix sockets in connect (#1852) (22c97b5), closes #1040
react-native: process.nextTick is not a function error (#1849) (f62e207)

5.5.3 (2024-04-19)

Bug Fixes

possible race condition in ping timer (#1848) (0b7d687), closes #1845
wrong mqttjs version printed (#1847) (a24cf14)

5.5.2 (2024-04-12)

Bug Fixes

react-native: error Cannot create URL for blob (#1840) (fc8fafb)

5.5.1 (2024-04-10)

Bug Fixes

browser: uncaught error when stream is destroyed with error (380f286), closes #1839

`v5.5.4`

Compare Source

Features

keepalive manager (#1865) (bad160a)

5.5.6 (2024-05-13)

Bug Fixes

do not shift pings on 'publish' packets (#1866) (e4d4663), closes #1863 #1861
electron: detect electron context (#1856) (6a03d29)
ws: ignored host option and default hostname in browser (c6580a6), closes #1730

5.5.5 (2024-04-30)

Bug Fixes

keepalive issues (#1855) (4f242f4)

5.5.4 (2024-04-26)

Bug Fixes

allow to use unix sockets in connect (#1852) (22c97b5), closes #1040
react-native: process.nextTick is not a function error (#1849) (f62e207)

5.5.3 (2024-04-19)

Bug Fixes

possible race condition in ping timer (#1848) (0b7d687), closes #1845
wrong mqttjs version printed (#1847) (a24cf14)

5.5.2 (2024-04-12)

Bug Fixes

react-native: error Cannot create URL for blob (#1840) (fc8fafb)

5.5.1 (2024-04-10)

Bug Fixes

browser: uncaught error when stream is destroyed with error (380f286), closes #1839

`v5.5.3`

Compare Source

Features

keepalive manager (#1865) (bad160a)

5.5.6 (2024-05-13)

Bug Fixes

do not shift pings on 'publish' packets (#1866) (e4d4663), closes #1863 #1861
electron: detect electron context (#1856) (6a03d29)
ws: ignored host option and default hostname in browser (c6580a6), closes #1730

5.5.5 (2024-04-30)

Bug Fixes

keepalive issues (#1855) (4f242f4)

5.5.4 (2024-04-26)

Bug Fixes

allow to use unix sockets in connect (#1852) (22c97b5), closes #1040
react-native: process.nextTick is not a function error (#1849) (f62e207)

5.5.3 (2024-04-19)

Bug Fixes

possible race condition in ping timer (#1848) (0b7d687), closes #1845
wrong mqttjs version printed (#1847) (a24cf14)

5.5.2 (2024-04-12)

Bug Fixes

react-native: error Cannot create URL for blob (#1840) (fc8fafb)

5.5.1 (2024-04-10)

Bug Fixes

browser: uncaught error when stream is destroyed with error (380f286), closes #1839

`v5.5.2`

Compare Source

Features

keepalive manager (#1865) (bad160a)

5.5.6 (2024-05-13)

Bug Fixes

do not shift pings on 'publish' packets (#1866) (e4d4663), closes #1863 #1861
electron: detect electron context (#1856) (6a03d29)
ws: ignored host option and default hostname in browser (c6580a6), closes #1730

5.5.5 (2024-04-30)

Bug Fixes

keepalive issues (#1855) (4f242f4)

5.5.4 (2024-04-26)

Bug Fixes

allow to use unix sockets in connect (#1852) ([22c97b5](https://redirect.github.com/mqttjs/MQTT.js/commit/22c97b5f7536e3e36317c3b28dc0d70557b820

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src/bundles/communication/package.json

  "private": true,
  "dependencies": {
-    "mqtt": "^4.3.7",
+    "mqtt": "^5.0.0",


yarn.lock

@@ -18518,6 +18532,53 @@ __metadata:
  languageName: node


sentry · 2026-01-18T16:33:51Z

src/bundles/communication/package.json

  "private": true,
  "dependencies": {
-    "mqtt": "^4.3.7",
+    "mqtt": "^5.0.0",


Bug: The mqtt package was upgraded to v5, which requires using the new keyword with connect. The current code calls connect(link) without new, which will cause a runtime error.
_{Severity: CRITICAL}

Suggested Fix

The mqtt.js v5 library requires instantiation with the new keyword. Update the client connection logic in src/bundles/communication/src/MqttController.ts from this.client = connect(link); to correctly instantiate the client according to the v5 API. The import might also need to be adjusted.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's not valid. Location: src/bundles/communication/package.json#L6 Potential issue: The `mqtt` dependency was upgraded from v4.3.7 to v5.x. This major version upgrade introduced a breaking change where creating an `MqttClient` instance now requires the `new` keyword. The code in `src/bundles/communication/src/MqttController.ts` at line 45 calls `this.client = connect(link)` without the `new` keyword. This will result in a runtime error when the `connectClient()` method is invoked, preventing any MQTT connection from being established and breaking all communication functionality for that bundle.

_{Did we get this right? 👍 / 👎 to inform future reviews.}

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src/bundles/communication/package.json

"private": true,

"dependencies": {

"mqtt": "^4.3.7",

"mqtt": "^5.0.0",

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@@ -18518,6 +18532,53 @@ __metadata:

languageName: node

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renovate bot force-pushed the renovate/mqtt-5.x branch 11 times, most recently from fe657b9 to 61926f6 Compare January 18, 2026 10:37

Update dependency mqtt to v5

31ca2e8

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Update dependency mqtt to v5 #426

Update dependency mqtt to v5 #426

renovate bot commented May 26, 2025 •

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Release Notes

Bug Fixes

5.13.2 (2025-07-07)

Bug Fixes

5.13.1 (2025-06-03)

5.13.2 (2025-07-07)

Bug Fixes

5.13.1 (2025-06-03)

5.13.2 (2025-07-07)

Bug Fixes

5.13.1 (2025-06-03)

5.13.2 (2025-07-07)

Bug Fixes

5.13.1 (2025-06-03)

5.13.2 (2025-07-07)

Bug Fixes

5.13.1 (2025-06-03)

Features

5.12.1 (2025-05-06)

Bug Fixes

Features

5.12.1 (2025-05-06)

Bug Fixes

Features

5.11.1 (2025-04-23)

Bug Fixes

Features

5.11.1 (2025-04-23)

Bug Fixes

Bug Fixes

Features

5.10.4 (2025-02-26)

Bug Fixes

5.10.3 (2024-11-26)

Bug Fixes

5.10.2 (2024-11-13)

Features

5.10.1 (2024-08-28)

Bug Fixes

Bug Fixes

Features

5.10.4 (2025-02-26)

Bug Fixes

5.10.3 (2024-11-26)

Bug Fixes

5.10.2 (2024-11-13)

Features

5.10.1 (2024-08-28)

Bug Fixes

Bug Fixes

Features

5.10.4 (2025-02-26)

Bug Fixes

5.10.3 (2024-11-26)

Bug Fixes

5.10.2 (2024-11-13)

Features

5.10.1 (2024-08-28)

Bug Fixes

Bug Fixes

Features

5.10.4 (2025-02-26)

Bug Fixes

5.10.3 (2024-11-26)

Bug Fixes

5.10.2 (2024-11-13)

Features

5.10.1 (2024-08-28)

Bug Fixes

Bug Fixes

Features

5.10.4 (2025-02-26)

Bug Fixes

5.10.3 (2024-11-26)

renovate bot commented May 26, 2025 •

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