release: bump version to 2.1.8 and optimize memory management

- Update version to 2.1.8 in pyproject.toml and lock files.
- Enhance memory management for lower steady-state memory usage across agent/worker paths, caches, and long-run cleanup.

Author: rithulkamesh

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.1.8] — 2026-03-24
+
+### Changed
+
+- **Memory management** — Runtime lifecycle and retention tuned for lower steady-state memory use (agent/worker paths, caches, and long-run cleanup).
+
 ## [2.1.7] — 2026-03-18
 
 ### Added

pyproject.toml

@@ -7,7 +7,7 @@ packages = ["devsper"]
 
 [project]
 name = "devsper"
-version = "2.1.7"
+version = "2.1.8"
 description = "Orchestrate distributed swarms of AI agents that collaboratively solve complex tasks."
 readme = "README.md"
 license = "GPL-3.0-or-later"