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release notes for 3.5.0 #1789

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**********************************
# Release Notes for OpenMDAO 3.5.0

December 04, 2020

OpenMDAO 3.5.0 adds the ability for users to complex-step across an OpenMDAO model externally,
as well as a few performance tweaks.

## Backwards Incompatible API Changes:

- None

## Backwards Incompatible NON-API Changes:

- None

## New Features:

- Allow user to complex step across a Problem. [#1777](https://github.com/OpenMDAO/dymos/pull/1777)
- Internal refactor of vector to have real and complex step modes share memory. [#1778](https://github.com/OpenMDAO/dymos/pull/1778)
- Fixed deprecation warning when user passed a pandas dataframe to discrete input [#1780](https://github.com/OpenMDAO/dymos/pull/1780)
- Added a 'get_remote' arg to compute_totals [#1783](https://github.com/OpenMDAO/dymos/pull/1783)

## Bug Fixes:

- Fixed setup() memory leak [#1782](https://github.com/OpenMDAO/dymos/pull/1782)
- Fixed an indexing bug dealing with src_indices in view_connections [#1788](https://github.com/OpenMDAO/dymos/pull/1788)

## Miscellaneous:
- Rearranged an mpi test and added fwd test [#1781](https://github.com/OpenMDAO/dymos/pull/1781)

**********************************
# Release Notes for OpenMDAO 3.4.1

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