v0.3.12

Changelog

v0.3.12 (2026-08-19)

Browse the Repository | Released Assets

Fixed

• Interpreters, interpreter builders and the resources they borrow (the op resolver
  and the flatbuffer model) now hold real references to each other. Previously only a
  hand-rolled counter recorded the link, so the VM was free to collect a resource that
  was still in use, and the destructor's decrement landed in whatever resource had been
  given that memory next. On arm64 this brought down the emulator with SIGBUS.
• Resources are no longer read uninitialised. enif_alloc_resource hands back raw
  memory, so fields that looked initialised in the struct definition were not, and
  NifResTfLiteTensor could reach delete on a wild pointer.
• Every tflite::FlatBufferModel and every tflite::Interpreter was leaked; both are
  now released with the resource that owns them.
• Creating an Edge TPU interpreter no longer leaks its resource when the interpreter
  cannot be built or its tensors cannot be allocated.
• Tensor resources are no longer leaked. Each one was created with a reference that
  nobody ever gave back, on top of the one the interpreter's cache holds, so none of
  them could be freed. Failing partway through reading a tensor leaked one as well.
• Edge TPU context resources are no longer leaked, for the same reason: the reference
  from enif_alloc_resource was never released.
• allocate_tensors no longer reports unknown error for three of the statuses
  TFLite can return. A model carrying ops the interpreter cannot resolve -- an Edge
  TPU model given to a plain builtin resolver, say -- now says UnresolvedOps
  instead. The mapping lived in two places, one of which had drifted; there is now
  only one.
• The Edge TPU itself is handed back when nothing is using it any more. Contexts were
  parked in a global map that was written to and never read, purely so their
  shared_ptr could not run out, which held the device until the VM exited. Each
  context resource now owns its share directly, and an Edge TPU interpreter holds a
  reference to the context it delegates to, so the device outlives every interpreter
  built on it and is released once the last one is gone.
• Platform-specific binaries now go to the consuming app's _build/<target>_<env>/lib/tflite_beam/priv
  instead of deps/tflite_beam/priv, so switching MIX_TARGET no longer picks up
  another target's tflite_beam.so. rm -rf deps/tflite_beam is no longer needed
  when cross-compiling (#73).
• Building from source no longer fails on hosts that have gflags installed
  system-wide (e.g. brew install gflags). glog resolved gflags through
  find_package, which picked up the system copy and collided with the targets
  the bundled gflags had already defined.