[Chimera-users] Chimera version and session compatibility

[Elaine Meng]

Hi Francesco,
Although a session saved with old Chimera will generally work in new Chimera (we retain backwards compatibility), the opposite is not true:  a session saved from newer Chimera generally requires that version of Chimera or newer to restore, as Greg described.

This is because "Chimera from the past" does not know about more recently added features, but these features are incorporated in sessions from "new Chimera."
Best,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Oct 10, 2012, at 3:01 PM, Francesco Pietra wrote:

> Hello:
> 
> chimera production version 1.6.2 (build 36855) 2012-07-06 17:55:00 UTC
> 
> 
> is unable to restore *.py files saved with
> 
> 
> chimera alpha version 1.7 (build 36726) 2012-06-21 01:06:17 UTC
> 
> 
> on another computer. Both computers running GNU-Linux Debian amd64 wheezy..
> 
> 
> Error message "cannot open session that was saved in a newer version
> of Chimera; update your version"
> 
> 
> Does "alpha version" override date and stable compilations? The unable
> version has a more recent date. Then, I have installed the latest
> stable version of chimera, and the error was the same.
> 
> Thanks for advice
> 
> francesco pietra
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