v0.4.0

⚠️ Breaking Changes ⚠️

• Split BSign into Quantize/Dequantize and separate from BConv (#457) @lgeiger, @AdamHillier @Tombana
• Change custom option enums to match flatbuffer schema (#464) @lgeiger
• Set padding and fused activations as enums (#386) @lgeiger
• Rename BConv attributes to follow TFLite more closely (#373) @lgeiger

🎉 Features

• Support full int8 QAT models in converter (#449) @lgeiger
• Add ARM32 kernel implementation (#432) @honglh
• Allow to set fake default ranges to enable latency test of int8 models (#357) @lgeiger
• Publish prebuilt benchmark binaries with each new release (#398) @lgeiger
• Publish dev docker images for releases (#397) @lgeiger
• Use thresholds for bitpacked output (#387) @Tombana
• Support dilated convolutions in converter (#385) @lgeiger

🚀 Performance

• Improve performance with optimised Ruy matrix packing. (#462) @AdamHillier
• Improve Aarch64 performance by removing NEON pipeline stalls. (#394) @AdamHillier

🐛 Bug Fixes

• Simplify make build (#480) @Tombana
• Fix int8 outputtransform (#422) @Tombana
• Fix trailing quantization op with experimental_bitpacking fusion (#402) @lgeiger
• Fix BMaxPool IR definition (#404) @lgeiger
• Fix sequential model in end2end test: add missing quantisers. (#390) @AdamHillier

📖 Documentation

• Update URLs in readme to adapt to the build docs changes (#481) @lgeiger
• Update benchmark table in Readme (#470) @lgeiger
• Fix broken links (#413) @koenhelwegen

👷‍♂️ Internal Improvements

• Remove zero_point argument from im2col (#478) @lgeiger
• Remove lce_benchmark_all binary (#477) @lgeiger
• Add profiler scopes for bitpacking functions and quantization/maxpool ops. (#471) @AdamHillier
• Remove Windows builds from release workflow (#476) @lgeiger
• Remove input/output dimensions from BConvParams (#475) @lgeiger
• Directly pass packed filer shape to bconv kernel (#474) @lgeiger
• Remove output shape argument from bitpack_tensor (#473) @lgeiger
• Simplify shape handling in kernel prepare method (#472) @lgeiger
• Fix unittest linkopts for macos (#465) @lgeiger
• Rename packbits to bitpack for consistency. (#463) @AdamHillier
• Automatically upload benchmark binaries to new releases (#456) @lgeiger
• Standardise on 32-bit bitpacking. Closes #446. (#461) @AdamHillier
• add extra braces around padding_buffer (#455) @andrewstanfordjason
• Prebuild AArch32 benchmark binary for new releases (#453) @lgeiger
• Add optimised canonical bitpacking for Aarch64. Closes #435. (#443) @AdamHillier
• Add Android AAR build to release workflow (#451) @lgeiger
• Add make_unsigned to unpack_matrix type (#442) @Tombana
• Use a 32-column C++ kernel layout when writing bitpacked output. (#441) @AdamHillier
• Test against Python 3.8 by default on CI (#438) @lgeiger
• Remove unused packbits_arm32 (#437) @lgeiger
• Test converter against TF 2.3 (#436) @lgeiger
• Update the unittest error threshold (#430) @Tombana
• Refactor OutputTransform with template types (#426) @Tombana
• Replace context->ReportError calls with TF_LITE_KERNEL_LOG (#403) @lgeiger
• Improve error message when passing wrong converter arg (#414) @lgeiger
• Use custom larq MLIR dialect for our ops (#384) @lgeiger
• Add misc updates for Micro (#401) @Tombana
• Upgrade TensorFlow to eaacee173897b77cdb6afd22d5e78154177a10f3 (#363) @lgeiger
• Slightly optimize docker image size (#399) @lgeiger
• Add new performance label to release notes (#395) @lgeiger
• Move weight bitpacking into its own converter pass. (#393) @AdamHillier
• Add custom dev docker file (#392) @lgeiger
• Remove RUY_ASM_FLAG_HAS_BIAS (#389) @lgeiger
• Remove filter_format attribute from IR and bconv kernel (#382) @lgeiger
• Add pattern to ensure post_activation_multipliers are always positiv (#375) @lgeiger
• Upgrade github/actions (#381) @lgeiger
• Add testing script for faster model conversions debugging (#380) @lgeiger

⬆️ Dependencies

• Update lint dependencies (#479) @lgeiger
• Bump actions/setup-python from v2.1.1 to v2.1.2 (#460) @dependabot
• Update actions/upload-artifact requirement to v2.1.4 (#419, #425, #440, #448, #454, #459) @dependabot
• Bump GoogleCloudPlatform/github-actions from 0.1.2 to 0.1.3 (#444) @dependabot
• Upgrade tensorflow to 2.3 stable (#439) @lgeiger
• Update lce_register.cc (#434) @lgeiger
• Bump DoozyX/clang-format-lint-action from v0.6 to v0.8 (#427, #433) @dependabot
• Bump actions/setup-python from v2 to v2.1.1 (#429) @dependabot
• Upgrade TensorFlow to 2.3.0rc0 (#415) @lgeiger
• Bump actions/download-artifact from v1 to v2 (#418) @dependabot
• Bump toolmantim/release-drafter from v5.8.0 to v5.11.0 (#417) @dependabot
• Create Dependabot config file (#416) @dependabot-preview
• Upgrade TensorFlow to tensorflow@9a70ab8 (#405) @lgeiger