util.isDate is not a function in v23.11.1 (works in LTS v22.x)

[PedroWC]

Version

23.11.1

Platform

10|backend | 2025-07-28T09:30:27: TypeError: util.isDate is not a function
10|backend |     at async exports.emitirRomaneio (/home/myusr/myproject/controllers/Transporte/cadastroNotas.js:214:13)
10|backend | 2025-07-28T09:30:44: TypeError: util.isDate is not a function
10|backend |     at async exports.emitirRomaneio (/home/myusr/myproject/controllers/Transporte/cadastroNotas.js:214:13)
10|backend | 2025-07-28T09:30:59: TypeError: util.isDate is not a function
10|backend |     at async exports.emitirRomaneio (/home/myusr/myproject/controllers/Transporte/cadastroNotas.js:214:13)
10|backend | 2025-07-28T14:41:58: Erro: TypeError: util.isDate is not a function
10|backend |     at async exports.add (/home/myusr/myproject/controllers/usoConsumo/consumiveis.js:791:24)
10|backend | 2025-07-28T15:06:39: Erro: TypeError: util.isDate is not a function
10|backend |     at async exports.add (/home/myusr/myproject/controllers/usoConsumo/consumiveis.js:791:24)
10|backend | 2025-07-28T15:11:22: Erro: TypeError: util.isDate is not a function
10|backend |     at async exports.add (/home/myusr/myproject/controllers/usoConsumo/consumiveis.js:791:24)
10|backend | 2025-07-28T15:57:59: TypeError: util.isDate is not a function
10|backend |     at async exports.emitirRomaneio (/home/myusr/myproject/controllers/Transporte/cadastroNotas.js:214:13)
10|backend | 2025-07-28T15:59:47: TypeError: util.isDate is not a function
10|backend |     at async exports.emitirRomaneio (/home/myusr/myproject/controllers/Transporte/cadastroNotas.js:214:13)

Subsystem

No response

What steps will reproduce the bug?

Use libraries that use util.isDate

How often does it reproduce? Is there a required condition?

• Frequency: 100% on every execution of any script that calls util.isDate().

• Required condition: Node.js version must be v23.x (tested on v23.11.1). The bug does not occur on v22.x LTS.

What is the expected behavior? Why is that the expected behavior?

-> Expected:

• util.isDate should be a function aliasing util.types.isDate.

• Calling util.isDate(new Date()) should return true.

-> Rationale:

• In all previous Node.js releases (including v22.x LTS), util.isDate() existed as a convenience alias for util.types.isDate().

• The documentation and historical behavior guarantee that util.isDate() remains available for backward compatibility.

What do you see instead?

TypeError: util.isDate is not a function
    at Object.<anonymous> (test-util-isDate.js:3:31)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    …

• typeof util.isDate prints undefined.

• util.types.isDate(new Date()) still works as expected.

Additional information

• OS: Ubuntu 24.04.2 LTS

• Node.js: v23.11.1

• npm: 10.9.2

• Codebase: private repository; no direct references to util.isDate in application source.

• A global search across our code (including controllers and utility modules) found no occurrences of util.isDate, so the failure likely originates in an external dependency.

• In v22.x LTS, the same test logs:

util.isDate: true
util.isDate(new Date()): true

[jasnell]

The API was deprecated and finally reached End-of-Life in v23 ... https://nodejs.org/docs/latest/api/deprecations.html#DEP0047

[himself65]

it has been removed after v22

related: #50488

[himself65]

please use util.types.isDate