chore: bump version to 0.1.0-beta.10

Author: jackluo923

docs/changelog.md

@@ -47,6 +47,19 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ---
 
+## [0.1.0-beta.10]
+
+### Changed
+
+- **Rust backend: streaming parse.** `RustBackend.parse()` now streams one fragment at a time instead of collecting all fragments for the entire input before yielding events. Memory usage is O(current event) instead of O(entire input), so long-running or repeated parsing no longer grows unbounded.
+
+### Added
+
+- **Backend performance tests** (`tests/test_backend_performance.py`). Compare C++ vs Rust throughput: `parse_event` (duration-based) and `parse` stream (fixed iterations). Optional RSS monitoring to stop early if memory grows. Correctness checks ensure both backends produce equivalent results.
+- **Documentation: why C++ is faster in benchmarks.** README and Architecture doc now describe the top two reasons: (1) C++ does full parse and event assembly in native code and returns one event per call; Rust exposes a fragment-level lexer and event assembly is done in Python. (2) Rust incurs more FFI round-trips per event (one per fragment and per capture) than C++ (one call per event).
+
+---
+
 ## [0.1.0-beta.9]
 
 Initial beta release with C++ and Rust backend support.

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "log-surgeon-ffi"
-version = "0.1.0-beta.9"
+version = "0.1.0-beta.10"
 description = "Python FFI bindings for log-surgeon: high-performance parsing of unstructured logs into structured data"
 license = { text = "Apache License 2.0" }
 authors = [