Is the project dead ?

[eladonline]

I see last updated 2 years ago should we move to other libs?

[nicolaschambrier]

No answer in 6 months, not very reassuring 😅

[Dimava]

@eladonline to which libs?
Is there a good comparison article or a benchmark somewhere?

IK there are

• this one, https://github.com/Starcounter-Jack/JSON-Patch
  • is RFC6902: yes
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• https://github.com/marcolink/generate-json-patch
  • is RFC6902: yes
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• https://github.com/benjamine/jsondiffpatch
  • is RFC6902: yes
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• https://github.com/chbrown/rfc6902
  • is RFC6902: yes, of course
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• https://github.com/ltwlf/json-diff-ts
  • is RFC6902: no
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• https://github.com/streamich/json-joy
  • is RFC6902: yes
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[Andy-d-g]

Hi allow, I partially fork the project to fix some bugs.
I made it ESM only.
If some of you want to contribute :

https://www.npmjs.com/package/json-patch-rfc

• is RFC6902: yes

[Dimava]

Hi allow, I partially fork the project to fix some bugs. I made it ESM only. If some of you want to contribute :

• https://github.com/Andy-d-g/json-patch-rfc
  • is RFC6902: yes
  • 
  • 
  • 

[bybraveHQ]

The upstream hasn't shipped since 2022, so I published a maintained drop-in fork: @bybrave/fast-json-patch2.

It keeps the RFC-6902 apply path byte-for-byte (verified against the official JSON-Patch conformance suite) and fixes the two things people keep hitting here:

• Modern exports map + dual ESM/CJS + rebuilt types — named ESM imports and bundlers (parcel, webpack 5) now work (package.json should use conditional exports, else esm won't work inexplicitly #310, Mixing default exports and named exports breaks parcel #317, Node12+ import documentation incorrect #311, How to import with typescript so checking works? #129).
• compare / observe no longer shred Date / toJSON values into char-by-char patches (Compare mishandles Dates #325, [BUG]generate error patch document when object has Date field #272, [Possible Bug] Comparison of luxon DateTime objects #278, Attempting to use if mirror has a toJSON and object does not breaks #318, Date objects are destroyed by _deepClone via JSON.parse(JSON.stringify()) #332). Values with toJSON are diffed atomically:

  compare({ when: new Date('2024-01-01') }, { when: new Date('2024-06-15') })
  // [ { op: 'replace', path: '/when', value: '2024-06-15T00:00:00.000Z' } ]

• 0 dependencies, Node >= 18.

Install: npm i @bybrave/fast-json-patch2. Migration is a one-line require/import swap — the API is identical. Positional array diff (#215) and move generation (#91) are unchanged / by-design; details in the README.