Changelog

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All notable changes to mob_dev are documented here.

Format: Keep a Changelog. Versioning: SemVer.

Full module documentation: hexdocs.pm/mob_dev.

[0.5.5]

Fixed

  • Android 15 segfault on launch (Pixel 7+, after the OS rolled out via OTA). Bumps @otp_hash from 550d7b78 → d9045670 to pick up OTP tarballs cross-compiled with -Wl,-z,max-page-size=16384. Without the flag, every .so in the bundled OTP runtime (crypto.so, asn1rt_nif.so, dyntrace.so, etc.) shipped with 4KB-aligned ELF PT_LOAD segments. Android 15 enforces 16KB alignment on devices with 16KB-page kernels and refuses to load misaligned libs, crashing the app at startup. New tarballs are 16KB-aligned (Align=0x4000).

[0.5.4]

Fixed

  • HexDocs source links pointed at the non-existent main branch — corrected to master so each </> glyph in generated docs opens the actual source file.

Added

  • .github/workflows/test.yml — runs mix test, mix format --check-formatted, mix credo --strict, and mix mob.security_scan on push to master and on every PR.
  • .github/workflows/release.yml — on tag push, creates a GitHub Release whose body is the matching ## [X.Y.Z] section from this changelog.

[0.5.3]

Changed

  • guides/nifs.md — rewrote the "Nx backends on mobile" section to match the current state (mix mob.enable nxeigen now real, mix mob.enable mlx includes the Metal GPU path on iOS device, EXLA "why not" preserved).
  • guides/nifs.md — restructured the multi-Rust-NIF section to lead with filmor's preferred shape (one Rustler crate per app, multiple #[rustler::nif] functions inside it). Multi-crate static linking remains supported and documented as an escape hatch, with the specific tradeoffs called out.

[0.5.2]

Added

  • mix mob.enable nxeigen — wires NxEigen (Eigen C++ CPU backend) into a Mob app. Builds as a C++ :static_nifs entry, cross-compiled per arch (arm64-ios, arm64-iossim, arm64-android, armv7a-android). FFT support uses Eigen's bundled kissfft.
  • EMLX Metal GPU enabled on iOS device. lib/mob_dev/mlx_downloader.ex now fetches the Metal-enabled libmlx.a + mlx.metallib bundle; lib/mob_dev/native_build.ex#maybe_bundle_mlx_metallib/2 copies the precompiled kernel library into the .app at build time, so EMLX.Backend with device: :gpu works on device without runtime kernel compilation.
  • scripts/release/mlx/ios_device_metal.sh + supporting build scripts for producing the Metal-enabled tarball; scripts/release/mlx/patches/0001-ios-metal-build.patch patches MLX 0.25.1's CMakeLists to switch SDK from macosx to iphoneos based on CMAKE_SYSTEM_NAME.

[0.5.1] and earlier

Earlier releases predate this changelog; consult the tag list and the per-tag commit messages for history.