release 0.5.1

CHANGELOG.md

@@ -6,6 +6,27 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [0.5.1] - 2026-08-20
+
+### Fixed
+
+- **Engine creation on a non-main-thread event loop** — `WorkflowEngine.create()`
+  no longer crashes when the event loop it runs on is started from a secondary
+  thread. Signal handlers (`SIGHUP`/`SIGTERM`/`SIGINT`) can only be installed
+  from the main thread; `_setup_signal_handlers()` now detects this case and
+  skips registration with a warning instead of raising, leaving shutdown to be
+  managed by the host process.
+
+### Added
+
+- **Conda recipe** — new `recipe/meta.yaml` for a conda-forge `staged-recipes`
+  submission (`noarch: python`). Python floor set to 3.10, matching
+  conda-forge's floor and avoiding a CPython 3.9 bug where
+  `importlib.metadata` doesn't normalize dots in distribution names, which
+  breaks `version("radical.asyncflow")` at import time.
+- **ReadTheDocs configuration** — `.readthedocs.yaml` builds the mkdocs site
+  on Python 3.12, installing the `.[doc]` extra.
+
 ## [0.5.0] - 2026-06-16
 
 ### Added

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "radical.asyncflow"
-version = "0.5.0"
+version = "0.5.1"
 description = "A High Performance Asynchronous Workflow Scripting Library"
 
 authors = [