Tachyon v0.5.1

[v0.5.1] | 2026-05-09

Bug Fixes

• 5dbf18c | cmake: Update module paths to use CMAKE_CURRENT_SOURCE_DIR

Documentation

• 1bc2b99 | changelog: Update for v0.5.0

Chores

• bddcf0f | version: Bump version to 0.5.1

Tachyon v0.5.0

[v0.5.0] | 2026-05-05

Features

• aa9cd34 | node: Implement RpcBus and RpcRxGuard
• f7db09e | node: Add TachyonRpcBusNode implementation for RPC bindings
• 455e781 | csharp: Implement RpcBus class
• 2033352 | csharp: Introduce RpcRxGuard for RPC slot management
• 26767b7 | csharp: Add RPC bindings for Tachyon ABI functions
• a2da4e4 | kotlin: Implement RpcBus for bidirectional RPC communication
• c8ee521 | kotlin: Add RpcMessage class for handling inbound RPC messages
• 41654e9 | java: Implement TachyonRpcBus
• 522c8ce | java: Introduce RpcRxGuard for RPC slot management
• be8fecc | java: Add RPC bindings for Tachyon ABI functions
• 93d27de | fuzz: Add new corpus files for shm_attach fuzzing
• ee09b83 | fuzz: Add new corpus files for arena_tx fuzzing
• b30f1a5 | fuzz: Add new corpus files for arena_rpc fuzzing
• b5b4ab8 | fuzz: Expand tachyon.dict
• 7101b6b | fuzz: Add fuzz_shm_attach shm attachment fuzzing
• ff15027 | fuzz: Add fuzz_arena_rpc for RPC fuzzing
• 432800b | fuzz: Add new corpus seeds for arena and shm_attach fuzzing
• 994632e | fuzz: Enhance and reorganize seed generation with expanded coverage
• 68c809a | fuzz: Add new corpus files for arena_tx fuzzing
• 0ab4e45 | fuzz: Expand tachyon.dict with additional entries for tx
• 7d9b176 | fuzz: Add fuzz_arena_tx.cpp guard
• 50c6991 | go: Add RPC API bindings for Go
• 7c1fa24 | go: Include tachyon_rpc.cpp in Go bindings
• cf54aaa | core: Add TACHYON_INLINE macro for future cross-platform inline support
• e4c9607 | cpp: Add CMake build files for RPC example
• 91f1bbc | rust: Add Rust bindings for RPC API
• 96d82b2 | rust: Include tachyon_rpc in build.rs
• f584112 | python: Expose RPC dispatcher in bindings
• c0367ce | python: Add RPC dispatcher, endpoints, and decorator to Python bindings
• f57875a | python: Expose low-level RPC bus and guards in Python bindings
• 2775b75 | python: Add RpcBus class to Python bindings
• 57227ba | python: Extend Python bindings with RPC transactional guards and bus
• 017a87d | core: Add transactional RPC API methods
• eab698f | core: Implement C API RPC bus functions
• 31e66f1 | core: Implement RPC bus listen/connect methods
• f59e134 | core: Define tachyon_rpc_bus structure
• 43387e4 | core: Introduce RPC bus and methods in ABI interface
• abedcb1 | core: Validate handshake flags in ABI checks
• f1f5c6f | core: Add RPC support for UDS shared memory transport
• b70c44f | core: Add RPC support with commit/acquire methods in Arena
• c9c0815 | core: Expand TachyonHandshake with reverse fields and flags
• 720082f | core: Add correlation_id field to MessageHeader and adjust padding
• 0c0cfe7 | cmake: Add clang-aarch64 toolchain and presets

Bug Fixes

• 97b3967 | core: Correct pointer arithmetic for payload calculation in Arena
• 69cfe99 | test/csharp: Resolve macOS socket path length limit in RPC tests
• ffd6d25 | arena: Validate alignment and capacity bounds to prevent out-of-bound access
• c08185f | core: Correct TACHYON_INLINE macro to include inline keyword for gcc
• 6cf97e8 | core: Include unistd.h in tachyon_rpc.cpp
• 02b9d54 | core: Close file descriptor on shm join failure

Code Refactoring

• 161d63e | fuzz: Rename fuzz targets
• cd54a2d | go: Adjust formatting in bench_test.go
• 54e4c24 | core: Move error mapping utilities to abi_utils.h for reuse
• b304c5c | core: Remove TachyonPayload concept and related methods
• 3c62a18 | core: Extract common tx flush logic to do_flush_tx

Build System

• 68d6188 | node: Add Tachyon RPC source file to build conf
• 46cfafe | fuzz: Add fuzz_arena_rpc target
• 9b1f13d | fuzz: Add fuzz target for shm_attach
• 1d3ce1b | fuzz: Add fuzz target for arena_tx
• eed2456 | python: Add tachyon_rpc.cpp to Python bindings
• 084b984 | test: Add test_rpc.cpp to tachyon_tests build
• f07690a | core: Add tachyon_rpc.cpp to CMakeLists.txt

Continuous Integration

• 33dfad6 | Remove unused TSan suppressions
• 63183c6 | fuzz: Add regression tests for new fuzz targets
• 7e60ee0 | release: Add matrix builds and artifact handling for Linux (x86_64, aarch64)
• 08bc639 | Update job names to include arch details
• 53704c9 | Add C++ aarch64 support to ci.yml

Tests

• 54d5036 | node: Add integration tests for RpcBus and RpcRxGuard
• 5b6a7de | csharp: Add unit tests for RpcBus
• 610a46f | kotlin: Add unit tests for RpcBus
• 12469aa | java: Add unit tests for TachyonRpcBus
• b550070 | go: Add unit tests for RPC
• 03fb341 | rust: Add unit tests for RpcBus and tx guards
• c8cb60d | python: Add tests for RPC dispatcher handlers and error cases
• a9f72ea | python: Add unit tests for RPC bus
• 708be7f | core: Add unit tests for RPC bus

Documentation

• 054dfe3 | integration: Adding RPC patterns and supervision to INTEGRATION.md
• f78a3f9 | syscalls: Document RPC handshake
• 7c08340 | abi: Add RPC wire semantics
• 7d86225 | bindings: Update README with RpcBus category
• 43cc867 | python: Add README for Python bindings
• e6ec025 | go: Add GoDoc for RPC bus structs/func
• bf01438 | fuzz: Update README with new targets
• d78f68d | fuzz: Correct build and usage instructions in README.md
• 35d390b | readme: Add RPC bench and details
• e1a4214 | abi: Update documentation for 0x04 ABI bump
• d34033b | migration: Add v0.5.0 migration guide
• cce46d0 | changelog: Update for v0.4.2

Chores

• 80d7ceb | version: Bump version to 0.5.0
• 27d8787 | tsan: Remove unused TSan suppressions file
• 03ad668 | gitignore: Rm python bindings README
• f8e5b8f | gitignore: Add .private dir to gitignore entries
• f566610 | gitignore: Add crash entry
• 5249232 | abi: Bump TACHYON_VERSION to 0x04

examples

• f936f25 | rpc: Add cpp cpp RPC example

Tachyon v0.4.2

[v0.4.2] | 2026-04-26

Features

• 44a50e7 | bindings/csharp: Add Bus class
• 3ed7704 | bindings/csharp: Add RxBatchGuard struct for batch message handling
• 2084535 | bindings/csharp: Add RxGuard struct for message read management
• 253cc81 | bindings/csharp: Add TxGuard struct for transaction management
• e081f22 | bindings/csharp: Add TypeId utility class
• 24a5efa | bindings/csharp: Add TachyonException class
• 23c4e92 | bindings/csharp: Update enums visibility
• dcaede9 | bindings/csharp: Add P/Invoke bindings for native lib
• 846c544 | bindings/csharp: Add native library loader
• 84216e9 | devcontainer: Add devcontainer for C# bindings
• 6a063d8 | ci: Add C# support to vendor script
• 54a1adc | fuzz: Extend tachyon.dict with TypeId seeds
• 38dd071 | fuzz: Add corpus seeds for header_parser and arena_rx
• 7d1441a | ci/fuzz: Add TypeId-based seed generation
• ff4efcf | ci: Add CodeQL analysis workflow
• a8c1e58 | bindings/node: Add TypeId helpers for encoding/decoding type_id components
• 6e0bbc4 | ci: Update dependency caching paths for Java, Kotlin, and Node bindings
• eacd17c | ci: Add Go dependency caching in CI
• f7cb6b1 | bindings/kotlin: Add TypeId helpers for encoding/decoding type_id components
• e02deba | bindings/java: Add TypeId helpers for encoding/decoding type_id components
• 406a15b | bindings/go: Add type_id encoding and decoding with tests
• 29634ba | bindings/python: Add type_id helpers
• d65d16c | bindings/rust: Add type_id encoding and tests
• d638660 | core: Add macros for encoding and decoding type_id components
• 2cdfe24 | core: Update TACHYON_VERSION and document type_id bit usage
• 622316e | seccomp: Add BPF generators for full and hotpath filters

Bug Fixes

• afa53fa | Adjust NuGet push command formatting in release.yml
• f81cd3a | bindings/csharp: Update README path in project file
• e131b31 | bindings/go: Disable AVX-512 support in cgo flags
• 62e9ca5 | ci: Add missing count argument for tachyon crate in version bump
• df47d8e | bindings/csharp: Prevent commit with zero batch count
• 49db126 | bindings/csharp: Make TachyonMsgView struct public
• b02d250 | ci: Remove redundant build deps
• f898c44 | bindings/node: Remove redundant type assertion in batch iterator

Performance Improvements

• df0b5c7 | arena: Remove rdtsc heartbeat in commit_rx_batch
• e417a73 | arena: Align Arena attributes to avoid false sharing and remove rdtsc heartbeats

Code Refactoring

• 02672fc | ci: Remove unnecessary Python README from version bump script
• 266ada0 | Remove trailing whitespace in release.yml

Build System

• 642b8e1 | seccomp: Add seccomp BPF generator support

Continuous Integration

• 4372259 | workflows: Add missing permissions to workflows
• 68a077c | codeql: Add support for development branch and custom build setups for C++, C#, and Java/Kotlin
• 8548476 | release: Remove C# README from version bump script
• 947b4b0 | codeql: Add C# analysis and update contents permissions
• 8394b1e | release: Add script to bump version across bindings and docs
• 26bdaf1 | release: Add C# build and publish
• 13fc202 | Add csharp bindings test step to CI
• b89a18b | Add C# build workflows

Tests

• 059da15 | bindings/csharp: Add test suite for Bus/IPC
• d815ca1 | bindings/python: Add tests for TypeId encoding
• 200bd35 | core: Add test for TypeId split and compound encoding
• 8b21c26 | bindings/kotlin: Add tests for TypeId
• d4806b6 | bindings/java: Add unit tests for TypeId encoding
• ffcac58 | go: Use t.TempDir() for UDS socket paths

Documentation

• 19b5919 | SECURITY: Update supported versions
• cf73fd1 | README: Update to include C# bindings and revised performance metrics
• ea63315 | perf: Update latency and throughput metrics in README
• 8f8bcb3 | Update perf data
• da140ff | Document heartbeat granularity and limitations
• 93d8561 | bindings/csharp: Add README for C# bindings
• f9e6794 | bindings/csharp: Document Bus class
• 8ce4adf | bindings/node: Document TypeId encoding in README
• bba54fe | bindings/kotlin: Document TypeId in README
• c35507e | bindings/java: Document TypeId encoding in README
• dcd0459 | bindings/go: Document type_id encoding in README
• aa51a7d | bindings/rust: Document type_id encoding in README
• c6642b6 | core: Add migration guide for v0.4.0
• 007e947 | INTEGRATION: Document type_id encoding
• dab4022 | ABI: Update to handshake v0x03 and define type_id encoding
• 0359afe | seccomp: Document syscall containment and seccomp filters
• 5894e5d | seccomp: Add README for BPF allowlist generators
• 9a981a2 | Add syscalls ref
• 10ceefc | github: Add pull request template
• ed5350b | github: Add issue templates for bugs, features, and questions
• 15bb13c | Add SECURITY policy
• 26f22fc | Add CONTRIBUTING guide
• 95f89be | Add CODE_OF_CONDUCT
• 1226f03 | changelog: Update for v0.3.5

Chores

• 4c183f8 | version: Bump version to 0.4.2
• 22512f6 | bindings/csharp: Update package metadata to use Apache-2.0
• 4dd3bdc | bindings/csharp: Downgrade package version to 0.3.5
• 88137ae | gitignore: Add all C# build dirs
• e5b8d1a | bindings/csharp: Add initial C# project
• 3f5f922 | gitignore: Add _core_local and build dirs for C# bindings
• 8d86c00 | bindings/node: Add package-lock.json to VC
• b7d9c83 | gitignore: Remove package-lock.json from .gitignore
• 11036a5 | gitignore: Add BPF files

Tachyon v0.3.5

[v0.3.5] | 2026-04-16

Features

• 550c172 | ci: Add artifact signing and SLSA provenance generation
• eb1021b | bindings/node: Add Prettier format check script to package.json
• 5a93f42 | bindings/node: Add Prettier and ESLint with configuration for TypeScript
• 4babcbf | bindings/node: Add Bus class
• d7e7b63 | bindings/node: Add RxBatch class and RxMessage type for batch processing
• 1a6811b | bindings/node: Add TxGuard and RxGuard for typed zero-copy buffer slots
• 63021f9 | bindings/node: Introduce TypeScript error definitions for N-API boundary
• dff1582 | bindings/node: Add native TachyonBusNode implementation wrapping Tachyon C API
• 2c1d892 | bindings/kotlin: Add Bus class for IPC communication and flow-based message handling
• 74468c3 | bindings/kotlin: Add Message class for typed IPC communication support
• 36ba05c | java: Refactor RxBatchGuard to use sliced views for memory access
• e4727d2 | java: Ensure memory segments are read-only in RxMsgView and RxGuard
• a29b600 | java: Throw BufferFullException when bus buffer is full
• bfdccd6 | java: Relocate classes to java.io.tachyon package for consistency
• f90a70c | java: Add TachyonBus for managing bus lifecycle and operations
• be68c08 | java: Refactor guards to ensure safe and confined memory access
• d36ddf8 | java: Add RxBatchGuard for managing batch message lifecycles
• 237c43b | java: Add RxGuard for managing read-only guarded resource lifecycles
• 15a4bc5 | java: Add TxGuard for managing transaction lifecycles
• cd60391 | java: Add RxMsgView for managing read-only message views
• 10f657c | java: Add TachyonException and custom exceptions for error handling
• ca7455c | java: Add MsgViewLayout for managing native message views
• 157fe61 | java: Add TachyonABI utility for managing native method calls
• 99b9459 | java: Add NativeLoader utility for loading native libraries
• d13fd67 | java: Add JNI_OnLoad implementation for Java bindings
• 157bbe7 | tachyon-top: Implement JSON export, polling, and interactive UI with dynamic update interval
• 59cf7ae | tachyon-top: Optimize PID parsing in ProcScanner
• 1f19ef2 | tachyon-top: Add UI components for rendering bus metrics and details
• 3e726b0 | tachyon-top: Add BusView for visualizing bus state and metrics
• 9728d14 | tachyon-top: Add ProcScanner for scanning processes and shared memory
• 8a79d59 | Add initial tachyon-top CLI entry point
• acf5e1a | rust: Add set_polling_mode to enable pure-spin mode in Rust bindings
• 4ba1a47 | python: Add set_polling_mode to enable pure-spin mode in Python bindings

Bug Fixes

• 2c97226 | ci: Stabilize publishing pipelines
• a9af33c | bindings/java: Suppress removal warnings and handle TACHYON FATAL or EINTR errors in Rx logic
• c1ba1e7 | cmake: Update TACHYON_MSAN_LIBCXX_DIR to use LLVM 21
• 27fb65c | core: Add MFD_CLOEXEC flag to memfd_create for fd safety
• 37439ca | ci: Correct syntax in LLVM install script
• 9b815ca | core: Ensure socket file is unlinked after closure
• 1e9fa0d | Update default build directory path in ci/bench/run.sh
• f5e6811 | bindings/node: Correct NAPI_VERSION to match supported API version
• aa3e926 | bindings/kotlin: Add connection retry logic and optimize batch message handling
• 377f1aa | bindings/kotlin: Correct send method logic, improve send efficiency, adjust Flow spin threshold
• 48f2974 | core: Validate TachyonBus capacity to ensure it is a power of two
• c4e3a7c | tachyon-top: Handle empty process list in JSON output and adjust fatal error label formatting
• 9d823b0 | tachyon-top: Correct sparkline data mapping in BusView
• 1daabec | tachyon-top: Skip scanning self PID in ProcScanner
• 7a3e988 | examples: Correct import paths in producer and consumer mains
• c942986 | ping: Adjust table formatting for alignment consistency
• 119d10a | arena: Remove redundant prefetch calls in arena operations
• 7aea7d3 | cmake: Add MSan compile options for gtest and update test discovery mode
• 3859933 | cmake: Update cache variable definitions and add PGO directory in presets
• 6f76629 | cmake: Correct CXX compiler name in clang toolchain and add fallback linker message in gcc toolchain
• 8e0f07b | cmake: Correct preset name formatting and update include path
• 4a28498 | cmake: Fix linker check in clang toolchain configuration

Performance Improvements

• 3a2bcfe | bindings/java: Add JMH benchmarks for TachyonBus
• e61ffd6 | core: Remove atomic flags for locks, add likely/unlikely annotations to reduce branche misses
• 5096b2a | examples: Enable polling mode in ping/pong mains
• 7182154 | core: Add polling mode support in bus arena
• d755f33 | arena: Add polling mode and refine consumer state handling
• a49884c | arena: Move heartbeat updates inside batch condition
• 9036714 | core: Align atomic flags to cache lines to reduce false sharing

Code Refactoring

• 3a8a4fe | bindings/node: Replace worker threads with child process for tests
• 627ee15 | ci: Add LLVM 21 support and env vars for Linux builds
• 227653a | core: Cleanup unused code and improve type const correctness
• d078c62 | bindings/node: Ensure slot state is properly checked before actions
• 3fd39f5 | bindings/kotlin: Remove redundant yield in Bus logic
• aa81855 | Replace em dash with hyphen for consistency
• 1830b4a | ci: Enhance LLVM install script
• 0d0951f | ci: Replace em dash
• d001372 | workflows: Replace em dash with hyphen
• 8787c09 | build: Replace em dash with hyphen in build messages and comments
• 7d8bd51 | changelog: Enhance commit parsing and changelog generation
• 113279b | bindings/node: Improve error handling and streamline assert_open logic
• 2bbc39e | bindings/node: Update imports to use .ts extensions and adjust tsconfig
• d67c694 | bindings/node: Update relative imports
• 625e1fc | bindings/node: Apply public visibility modifier across classes and methods
• ac7149c | bindings/node: Reformat code and simplify default member initializers
• 463cc73 | bindings/java: Relocate package to dev.tachyon_ipc and update group ID
• 20faa78 | tachyon-top: Streamline core namespace usage and improve const correctness
• 4620b84 | tachyon-top: Optimize view management and buffer handling
• 638ada1 | tachyon-top: Enhance BusView and ProcScanner with improved buffer management and resource safety
• 9a00f07 | tachyon-top: Improve sparkline rendering scalability with dynamic canvas size
• a5dfbbc | build: Rename LINK_OPTIONS to TACHYON_LINK_OPTIONS
• cf8d381 | examples: Enable polling mode in consumer examples
• 9cb22be | benchmark: Enable polling mode in Python and Go benchmarks
• 164bbb5 | arena: Replace MessageHeader with PackedMeta in data copying
• 750bcd4 | arena: Replace MessageHeader with PackedMeta for metadata handling

Build System

• 5ce4851 | bindings/node: Include test folder in tsconfig and eslint config
• c007283 | bindings/node: Migrate to ESM and replace ts-node
• de53f04 | bindings/node: Update tsconfig with ESNext.Disposable lib and Node types
• 083e9cb | bindings/node: Add TypeScript configuration and initial entry point
• 419e94c | bindings/node: Migrate from GYP to cmake-js, update build tooling dependencies
• afa0d91 | bindings/node: Add GYP build configuration
• afc4ed7 | bindings/node: Add package.json for Node.js bindings
• 9dbebe7 | bindings/node: Add CMake support for Node.js bindings
• e912886 | bindings/kotlin: Add Gradle wrapper for version 8.11 setup
• fee3417 | bindings/kotlin: Add initial Gradle setup and Maven publishing configuration
• 88e85a0 | bindings/java: Upgrade Gradle to 8.11 and migrate to Vanniktech Maven Publish plugin
• 258eaf2 | gradle: Configure JMH annotation processor and link compileJmhJava to jmh task
• bd6516b | gradle: Add JUnit Platform Launcher dependency for enhanced test execution
• 1beaff2 | gradle: Enable Java 21 preview features and update compiler, test, and Javadoc configurations
• d0ce10d | gradle: Revert version and name in mvn publication
• 047f701 | gradle: Add JMH benchmarks and Maven publishing
• 41f948b | cmake: Replace Java JNI library with native resources packaging
• ee7f31b | gradle: Add Gradle wrapper and configuration for Java bindings
• 18cb608 | gradle: Add initial Gradle configuration for Java bindings
• 52a7c06 | cmake: Add Java bindings support with JNI integration
• bcd5f6a | cmake: Add tachyon-top-ci preset for CI builds with portable settings
• 2adfaf9 | cmake: Add portable build option to disable -march=native for redistributable binaries
• 17e68e3 | Add support for building tachyon-top CLI with FTXUI dependency
• 2819436 | cmake: Set compile options for tachyon_python target
• 07559c1 | cmake: Remove redundant find_package calls for benchmark and GTest
• 40f9c5e | cmake: Enhance MSan setup with libc++ paths and validation
• 0f2167c | Add script for building libc++ with MSan and update .gitignore
• 2429f69 | cmake: Add debug presets for clang and gcc, update .gitignore
• fb3cf2e | cmake: Replace inline compile options with tachyon_set_compile_options
• 881cf07 | cmake: Include dependency module and improve sanitizer checks
• 9eb47d2 | cmake: Include compile options module and remove unused debug flags
• 976e4c4 | cmake: Fix preset name formatting and add top-level CMakePresets.json
• ed5bf51 | cmake: Add MemorySaniti...

Tachyon v0.2.0

[v0.2.0] — 2026-03-31

feat

• feat(core): add support for macOS shared memory using shm_open
• feat(examples): add Go producer-consumer telemetry example
• feat(benchmark): add comparison script and runtime utility for Tachyon benchmarking
• feat(benchmark): add support for Intra-Process, Inter-Process, and ZeroMQ RTT benchmarking
• feat(fuzz): add TOCTOU fuzzing corpus with diverse seed scenarios
• feat(fuzz): add TOCTOU fuzzing target and update workflow with regression tests
• feat(fuzz): add TOCTOU fuzzing target for message validation and arena handling
• feat(core): add alignment checks and constants for message header validation
• feat(bindings/go): add RxBatch and RxMsg for zero-copy message reads and batch processing
• feat(bindings/go): add RxGuard for zero-copy shared memory reads and resource management
• feat(bindings/go): add Bus abstraction for SPSC IPC with methods for message passing and resource management
• feat(bindings/go): add TxGuard for transactional writes with shared memory rollback safety
• feat(bindings/go): add error handling and mapping for Tachyon C errors
• feat(bindings/go): add initial Go bindings with core vendoring script

fix

• fix(examples): correct Go module path in go.mod
• fix(test): improve type safety and enable CTest support
• fix(python): ensure compatibility of compiler flags across platforms
• fix(core): correct shm_open flag logic and update includes
• fix(python): handle Clang version check for Apple-specific builds
• fix(arena): adjust local_tail_ to account for skipped space

refactor

• refactor(bindings/go): rename guard.go to tx_guard.go

ci

• ci: add ASan workflow and update test directory paths
• ci: add macOS workflows for all language bindings and C++ builds
• ci(workflows): update paths for changelog and vendor scripts
• ci(scripts): restructure and relocate scripts under ci folder
• ci: remove branch restriction from push trigger for ci.yml
• ci(release): add Go module tagging and publishing steps to release workflow
• ci: add Go bindings CI with setup and testing steps

test

• test(bindings/go): add benchmarks and unit tests for Bus and message passing features

docs

• docs(adr): add README and architecture decision records for Tachyon
• docs(examples): add README for Go producer-consumer telemetry example
• docs(benchmark): add README with build, run, and comparison instructions
• docs(ci): add README with usage instructions for CI scripts
• docs(fuzz): update README with TOCTOU fuzzing details and usage instructions
• docs(bindings/go): add README with usage, examples, and API refs
• docs(changelog): update for v0.1.3

chore

• chore(version): bump Tachyon core and bindings to v0.2.0
• chore(deps): add google benchmark to Pipfile
• chore(gitignore): add benchmark results to ignore list

Tachyon v0.1.3

[v0.1.3] — 2026-03-25

feat

• feat(bindings/python): expose TachyonBus in Python bindings
• feat(core): add transaction rollback mechanism in Arena and tachyon_c

fix

• fix(bindings/python): consolidate drain_batch return type
• fix(core): correct typo in timeout retry comment
• fix(bindings/python): update drain_batch return type to RxBatchGuard for stricter type safety
• fix(bindings/python): add dealloc handler to TxGuard to ensure rollback on deletion
• fix(bindings/rust): update rollback behavior and README with tachyon_rollback_tx
• fix(bindings/python): reorder PeerDeadError definition for consistency across modules
• fix(bindings/python): replace commit with rollback on guard initialization failure
• fix(bindings): replace phantom commit with proper rollback mechanism in Python and Rust
• fix(bindings/python): extend PeerDeadError and add buffer interface to _tachyon

refactor

• refactor(bindings/python): rename count to s in drain_batch

docs

• docs(readme): modify Python examples
• docs(integration): reformat and expand IPC lifecycle and error handling sections
• docs(changelog): update for v0.1.2

chore

• chore(changelog): remove redundant entries for concise history

release

• release(bindings): bump version to 0.1.3 for Python and Rust packages

Tachyon v0.1.2

[v0.1.2] — 2026-03-25

fix

• fix(bindings): add error handling for ABI mismatch in Python and Rust
• fix(core): refine error mapping for ABI mismatch detection
• fix(benchmark): add core availability check and improve pinning error handling
• fix(core): correct branch prediction hint in tachyon_c.cpp

docs

• docs(abi): update error codes from TACHYON_ERR_SYSTEM to TACHYON_ERR_ABI_MISMATCH
• docs(changelog): update for v0.1.1

release

• release(bindings): bump version to 0.1.2 for Python and Rust packages
• release(bindings): bump version to 0.1.2 for Python and Rust packages

Tachyon v0.1.1

[v0.1.1] — 2026-03-24

feat

• feat(examples): add Python producer and Rust consumer example with shared memory communication
• feat(examples): add C++ producer and Python consumer inference example with shared memory communication
• feat(examples): add Rust producer and Python consumer inference example with shared memory communication
• feat(examples): add C++ producer-consumer RTT benchmark with ping/pong
• feat(python): add compiler version checks and clarify installation instructions

docs

• docs(changelog): update for v0.1.1
• docs(readme): expand documentation with use cases, architecture, and integration guide
• docs(rust): add README files for tachyon-ipc and tachyon-sys crates
• docs(changelog): update for v0.1.0

release

• release(core): bump version to 0.1.1 for Python and Rust packages

Tachyon v0.1.0

[v0.1.0] — 2026-03-24

feat

• feat(python): add dlpack integration and update packaging configuration
• feat(rust): rename crate to tachyon-ipc and support vendored builds
• feat(rust): add vendoring script for Rust bindings and update .gitignore
• feat(ci): add changelog generation script and workflow
• feat(arena): add ThreadSanitizer annotations and suppression file
• feat(build): add configurable sanitizer presets in CMake
• feat(fuzz): extend tachyon dictionary with new fuzzing cases
• feat(fuzz): add seed files for arena rx, arena rx batch, and header parser fuzz corpus
• feat(fuzz): add script to generate fuzz seeds for header parser and arena rx
• feat(fuzz): add arena rx, arena rx batch and header parser fuzz corpus with gitignore updates
• feat(fuzz): add arena rx batch fuzz test and extend dictionary with new cases
• feat(fuzz): implement header parser fuzz test leveraging arena-based memory
• feat(bindings/python): add set_numa_node for NUMA binding on Linux
• feat(fuzz): implement arena rx fuzz test and add dictionary for fuzzing
• feat(build): improve PGO support with compiler-specific options, detection, and validation
• feat(fuzz): add empty fuzz test files for header parser and arena rx
• feat(build): add support for fuzz testing with libFuzzer integration
• feat(bindings/rust): add NUMA node binding support for Bus on Linux
• feat(bindings/python): add NUMA node binding support for TachyonBus on Linux
• feat(core): add NUMA node binding support for tachyon_bus_t on Linux
• feat(build): add support for PGO with setup script and CMake integration
• feat(core): add madvise with MADV_DONTFORK for CoW safety on Linux
• feat(bindings/rust): add ping-pong latency benchmark
• feat(bindings/rust): optimize release profile and add target-specific Rust flags
• feat(bindings/rust): add comprehensive tests for Bus functionality and message handling
• feat(bindings/rust): implement Bus and TachyonError for Rust bindings
• feat(bindings/rust): add layout tests for tachyon_msg_view_t in tachyon-sys
• feat(bindings/rust): add tachyon-sys build script with CPP compilation and bindings generation
• feat(bindings/rust): add tachyon crate
• feat(bindings/rust): add initial Rust workspace with tachyon and tachyon-sys crates
• feat(python): expose RxBatchGuard and RxMsgView in module interface
• feat(python): add DLPack support to RxMsgView for improved interoperability
• feat(python): add drain_batch method
• feat(python): add drain_batch method and RxBatchGuard for efficient batch message processing
• feat(python): add RxBatchGuard and RxMsgView to manage and process RX message batches
• feat(python): handle TACHYON_ERR_INTERRUPTED in TachyonBus.listen and improve signal handling
• feat(core): handle TransportError::Interrupted and improve socket polling logic
• feat(core): add msg_alignment to handshake and memory layout for improved messaging guarantees
• feat(core): add tachyon_drain_batch API and improve RX logic
• feat(core): add consumer sleep state management and producer heartbeat support
• feat(core): add RX batch APIs and improve RX handling
• feat(core): add RX batch processing to improve performance and correctness
• feat(core, bindings): introduce wait result handling and improve RX error management
• feat(bindings): introduce PeerDeadError for liveness exception handling in Python bindings
• feat(core): add state tracking and watchdog timeout for bus management
• feat(core): add rdtsc utility for high-resolution timing on x86_64 and ARM architectures
• feat(core): extract Unix Domain Socket transport to dedicated module
• feat(core): introduce TachyonHandshake struct for standardized handshake protocol
• feat(core): implement Apple locking with __ulock native API
• feat(bindings): enhance packaging configuration for Python bindings
• feat(bindings): add Python benchmark script for latency and throughput measurements
• feat(bindings): add Bus and Message classes to Python bindings for IPC bus integration
• feat(bindings): add spin threshold arg to acquire_rx in py binds
• feat(bindings): implement buffer protocol support for TxGuard and RxGuard in Python bindings
• feat(bindings): add TxGuard and RxGuard context managers to Python bindings
• feat(bindings): expand Python C extension with TachyonBus object and API bindings
• feat(bindings): add initial Python C extension module for bindings
• feat(bindings): add Python bindings packaging
• feat(bindings): add Python bindings build support via CMake
• feat(core): add tachyon_memory_barrier_acquire for mem ordering guarantee
• feat(core): add TAS-based producer/consumer locking to tachyon_bus for thread safety
• feat(core): add reference counting to tachyon_bus
• feat(core): add tachyon_pop_blocking C API support for blocking pop operations
• feat(core): add cross-platform blocking pop support with consumer sleep/wake in Arena
• feat(core): add C API implementation for shared memory message bus
• feat(core): add type_id support and pop_spin method to Arena API
• feat(core): add type_id support and pop_spin method to Arena API
• feat(core): add TACHYON_API and cpu_relax utility for cross-platform compatibility
• feat(core): add TachyonPayload concept and convenience methods to Arena
• feat(shm): add error handling for fchmod in SharedMemory creation
• feat(core): implement Arena class for SPSC queue in shared memory
• feat(core): add SignalHandler for graceful termination handling
• feat(core): add TACHYON_API macro for default symbol visibility
• feat(core): expose SharedMemory via TACHYON_API and clean up includes
• feat(core): introduce shared memory abstraction with create and join methods
• feat(codebase): add initial benchmarking and testing entry points

fix

• fix(ci): add --allow-dirty to cargo publish, pypi trusted publisher
• fix: add Wno-builtin-macro-redefined for Clang 18
• fix(arena): include missing syscall.h for Linux builds
• fix(core): correct branch prediction hint in acquire_rx_batch
• fix(core): correct branch prediction hint in acquire_rx_batch
• fix(core): replace flush with flush_tx to prevent stale transactions in arena
• fix(core): clarify caller responsibility in acquire_rx_batch docs
• fix(core): correct branch prediction hint in acquire_rx_batch
• fix(python): ensure transaction commits before raising memoryview errors in guards
• fix(core): add comments addressing lost-wakeup window and defer dead-peer detection
• fix(python): add dealloc methods and improve memory safety in RxGuard and RxBatchGuard
• fix(core): ensure socket file is unlinked on error paths in UDS transport
• fix(python): add missing dealloc methods for RxMsgView and RxBatchGuard
• fix(python): extend RxBatchGuard_exit to handle exception arguments
• fix(bindings): update PeerDeadError docstring and correct typo in BufferError message
• fix(core): include missing <thread> header for std::this_thread::yield() usage
• fix(bindings): raise BufferError when TxGuard buffer is already committed
• fix(core): correct unlink call to use addr.sun_path in UDS transport
• fix(core): handle bus cleanup on error paths in tachyon_c.cpp
• fix(core): add safety check in Arena::commit_tx for reserved size overflow

refactor

• refactor(bindings/python): remove triple alloc in ML hot path from RxMsgView._dlpack
• refactor(python): simplify error handling and adjust transaction commit logic in buffer release
• refactor(core): remove producer heartbeat checks and adjust watchdog timeout
• refactor(core): simplify wait_consumer_sleeping return type and remove WaitResult
• refactor(core): enforce alignas(64) for tachyon_bus and add alignment validation
• refactor(core): align MessageHeader and add dynamic TACHYON_MSG_ALIGNMENT
• refactor(core): replace noexcept with TACHYON_NOEXCEPT
• refactor(bindings): delegate TxGuard and RxGuard to _tachyon module for improved maintainability
• refactor(bindings): reorganize Python bindings, add high-level Bus and Message APIs
• refactor(bindings): implement PEP 489 multiphase initialization in Python module
• refactor(benchmark): switch to acquire/commit API
• refactor(core): update tachyon_bus to use acquire/commit API and remove legacy push/pop methods
• refactor(core): simplify Arena push/pop API, add acquire/commit methods, and improve reserved size tracking
• refactor(core): align MessageHeader to 32 bytes
• refactor(core): improve error handling and safety checks in Arena message bus
• refactor(core): remove unused SignalHandler
• refactor(core): replace reinterpret_cast with tachyon_start_lifetime_as utility and clean up includes
• refactor(core): improve memory alignment and add skip marker support in Arena
• refactor(core): simplify std::span initialization in Arena::try_push method
• refactor(shm): replace shm_open with memfd_create and update join signature
• refactor(shm): add release method and improve SharedMemory resource management

ci

• ci(release): update release workflow with PyPI, crates.io, and GitHub releases
• ci: add ThreadSanitizer workflow and refine sanitizer configurations
• ci(fuzzer): add GitHub Actions workflow for fuzz regression testing

test

• test(bindings/python): add PyTorch DLPack integration test and update dependencies
• test(arena): add batch processing test for arena RX/TX handling
• test(arena): adjust spatial difference test to account for TACHYON_MSG_ALIGNMENT
• test(bindings): add unit tests for Bus standard and zero-copy APIs
• test(core): refactor ArenaTest to use acquire/commit API and expand tests
  ...