release: MCX v2.0.1 — speed optimizations + CLI bench + packaging

MTF decode +67%, RC inline +30% decomp, bench command, man page,
HC match finder, PyPI workflow, CI fixes for all platforms.

Author: Overmind

CHANGELOG.md

@@ -2,6 +2,29 @@
 
 All notable changes to MaxCompression are documented in this file.
 
+## [2.0.1] — 2026-03-18
+
+### Added
+- `mcx bench <file>` command — benchmark all compression levels with speed/ratio comparison.
+- Man page (`docs/mcx.1`).
+- Hash chain match finder (`hc_match.c`) — 4× faster alternative for future speed modes.
+- PyPI publish workflow (`.github/workflows/pypi.yml`) + `pyproject.toml`.
+- L26 (LZRC) roundtrip test in CI.
+- Python bindings: `version()` and `compress_bound()` functions.
+
+### Changed
+- **MTF decode +67% faster** — replaced byte loop with `memmove` (29→49 MB/s).
+- **RC decoder inline** — decompress +19–36% (cross-TU inlining of hot path).
+- **RC encoder inline** — compress +57–113%.
+- **BT depth 64→32** — same ratio, ~7% faster compression.
+- Portable bench timing (Windows `QueryPerformanceCounter`, POSIX `clock_gettime`).
+
+### Fixed
+- CI: Windows `__builtin_ctzll` → `mcx_ctzll()` portability.
+- CI: OpenMP optional (`find_package(QUIET)`).
+- CI: `_GNU_SOURCE` for `bench_fast.c`.
+- CI: Missing `preprocess.h` include in `genetic.c`.
+
 ## [2.0.0] — 2026-03-18
 
 ### Added

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.15)
 
 project(maxcomp
-    VERSION 1.9.3
+    VERSION 2.0.1
     DESCRIPTION "MaxCompression — Revolutionary file compression library"
     LANGUAGES C
 )

include/maxcomp/maxcomp.h

@@ -50,7 +50,7 @@ extern "C" {
 
 #define MCX_VERSION_MAJOR  2
 #define MCX_VERSION_MINOR  0
-#define MCX_VERSION_PATCH  0
+#define MCX_VERSION_PATCH  1
 
 /** Returns version as a packed integer: (major*10000 + minor*100 + patch) */
 MCXAPI unsigned mcx_version_number(void);