NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
PyPI · #5289 most downloaded on PyPI
Python library for dataflow programming with Amazon SWF
Last release 3 months ago
01 Jul 2026
Release timing varies
gaps range from 8 days to 9 months
Most releases are documented
notes for 50 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
13 years old
139 releases · first in 2014
- Bugfix: task failed details (#281) - Add sets support to json_dumps
- Add back get_workflow_history
- Implement "jumbo" fields
One column per quarter.
Enhancement/272/implement workflow cancelation
- Feature: timers
Kill worker on UnknownResourceFault's during a heartbeat
- Fix step attribute propagation (#261) - Enhancement: get_event_details
Enhancement: distinguish raises_on_failure between tasks and groups
Enhancement: add canvas option break_on_failure
make raises_on_failure=True on step activities
mark when a step is scheduled before it's executed
Enhancement: better activity type reason
Make activity task result optional
propagate_attribute: skip signal objects
Don't send exception up if raises_on_failure is false
Fix workers not stopping in case they start during a shutdown
Implement metrology on SWF and local workflows
Try..except pass for NoSuchProcess
Relax DeciderPoller task list check
Fix SWF executor not accepting ActivityTask's in submit() method
Don't schedule idempotent tasks multiple times
Control SWF processes identity via environment
Replace execution object with a more flexible get_execution_method()
execution object with a more flexible get_execution_method() (#177)Executor: expose workflow execution
Avoid returning too big responses to RespondDecisionTaskCompleted endpoint
Add max_parallel option in Group
Make the dynamic dispatcher more flexible
Don't override passed "default" in json_dumps()
- Improve process management
Don't reap children in the back of multiprocessing
Refactor: cleanups and many python 3 compatibility issues fixed
Fix tag_list declaration in case no tag is associated with the workflow
Various little fixes around process management, heartbeat, logging
Add ability to provide a 'run ID' with 'simpleflow standalone --repair'
Fix --tags argument for simpleflow standalone
Fix a circular import on simpleflow.swf.executor
Fix previous_history initialization
Add a --repair option to simpleflow standalone
Retry boto.swf connection to avoid frequent errors when using IAM roles
Same as 0.11.6 but the 0.11.6 on pypi is broken (pushed something similar to 0.11.5 by mistake)
Same as 0.11.6 but the 0.11.6 on pypi is broken (pushed something similar to 0.11.5 by mistake)
Avoid duplicate logs if root logger has an handler
issubclass_ method (#96)Don't mask activity cancel exception
ISO dates in workflow history #91
Fix replay hooks introduced in 0.11.2
- Add new workflow hooks
Fix logging when an exception occurs
Merge swf package into simplefow for easier maintenance.
swf package into simplefow for easier maintenance.Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Your coding agent can read these notes before it upgrades. Set up the MCP server →