Node.js 26 support: native build fails (NAN vs new V8 GetAlignedPointerFromInternalField) #1145

Environment

• node-rdkafka: 3.6.1 (latest)
• Node.js: 26.4.0 (V8 14.x)
• OS: Linux (Ubuntu, GitHub Actions ubuntu-latest) and macOS
• node-gyp: 11.4.2

Problem

node-rdkafka@3.6.1 fails to compile from source on Node.js 26. Node 26's V8 changed the signature of GetAlignedPointerFromInternalField (it now takes additional arguments), and the bundled NAN-based bindings don't compile against it:

/home/runner/.cache/node-gyp/26.4.0/include/node/v8-object.h:558:26:
  note: candidate expects 3 arguments, 1 provided
...
make: *** [node-librdkafka.target.mk:129: Release/obj.target/node-librdkafka/src/binding.o] Error 1
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! node -v v26.4.0
gyp ERR! node-gyp -v v11.4.2
gyp ERR! not ok

There is also no prebuilt binary published for Node 26 (ABI 137), so installs fall back to a source build and fail.

Impact

Any project on Node 26 (the current release; Active LTS on 2026-10-28) cannot npm/yarn install node-rdkafka, which blocks CI, container base images, and runtime.

Ask

Could node-rdkafka add Node.js 26 support — either by updating/replacing the NAN usage (NAN is the root cause here; migrating the bindings to Node-API / node-addon-api would be forward-compatible across V8 changes) and/or publishing Node 26 prebuilds?

Related upstream context on the same NAN/V8 break: nodejs/node#61174.