ProDy 1.9 Series
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1.9.4 (Feb 02, 2018)
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* Undocumented release and fixes. 

1.9.3 (Oct 09, 2017)
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*Bugfixes*

  * Bug fix about http and ftp based pdb downloads. 

  * Bug fixes in PRS calculations. 

1.9.2 (Aug 29, 2017)
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** New Features**:

*Migration to pypi.org*

  * All repositories are moved to pypi.org


1.9.1 (Aug 18, 2017)
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** New Features**:

*PDB Secondary Structures*

  * It is possible to write secondary structure infrmation to PDBs. 

*Bugfixes*

  * Fixed the problem about clang compiler for saxs tools.

  * If FTP client is not working, HTTP client will be used when downloading PDBs.

1.9 (May 23, 2017)
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**New Features**:

*Perturbation Response Scanning*

  * Perturbation Response Scanning method is fully implemented with 
    new plotting tools. 

  * Effectors and sensors are calculated from PRS tool. 

*Visualization with py3Dmol*

  * In jupyter notebook, if you have installed py3Dmol you can use
    py3Dmol visualization directly instead of simple matplotlib 
    visualization. 

*mmcif parser*

  * Another structural format cif is also a part of ProDy parser now. 

*Bugfixes*

  * Various indexing issues are fixed. 

  * Some of the obsolete pdbs will not be downloaded anymore, instead
    replaced pdbs will be downloaded. This will change the priority 
    between ftp and http servers.