=====
:release-date: 2018-05-21 09:00 A.M IST
:release-by: Omer Katz
- Now passing ``max_retries``, ``interval_start``, ``interval_step``,
``interval_max`` parameters from broker ``transport_options`` to
:meth:`~kombu.Connection.ensure_connection` when returning
:meth:`~kombu.Connection.default_connection` (Issue 765).
Contributed by **Anthony Lukach**.
- Qpid: messages are now durable by default
Contributed by **David Davis**
- Kombu now requires version 2.10.4 or greater of the redis library,
in line with Celery
Contributed by **Colin Jeanne**
- Fixed ImportError in some environments with outdated simplejson
Contributed by **Aaron Morris**
- MongoDB: fixed failure on MongoDB versions with an "-rc" tag
Contributed by **dust8**
- Ensure periodic polling frequency does not exceed timeout in
virtual transport
Contributed by **Arcadiy Ivanov**
- Fixed string handling when using python-future module
Contributed by **John Koehl**
- Replaced "async" with "asynchronous" in preparation for Python 3.7
Contributed by **Thomas Achtemichuk**
- Allow removing pool size limit when in use
Contributed by **Alex Hill**
- Codebase improvements and fixes by:
- **j2gg0s**
- **Jon Dufresne**
- **Jonas Lergell**
- **Mads Jensen**
- **Nicolas Delaby**
- **Omer Katz**
- Documentation improvements by:
- **Felix Yan**
- **Harry Moreno**
- **Mads Jensen**
- **Omer Katz**
- **Radha Krishna. S.**
- **Wojciech Matyśkiewicz**
.. _version-4.1.0: