Dear all,

BitMover Inc has recently decided to withdraw its open license, and we 
are going to be forced to change our CM system for openEHR. This is a 
huge disappointment, since BitKeeper really is the rolls-royce 
application in its class, and is ideally suited to open development. 
However, they have made a decision, and given some leeway for people 
like us to change. I am not 100% sure of what you will be experiencing 
currently if you try to do a pull with your current copy of BK; if you 
are experiencing problems, please let us know.

Some people may be thinking "told you so", but as a quick defence of our 
choice I would note:
- we placed quite some weight on Linus Torvalds' choice of BK 2 years 
ago, and also some other large open source projects
- we started using BK in openEHR at the end of 1993. THe most likely 
alternative, Subversion, was much less mature then
- the choice has absolutely minimised our manual work in CM for the 
period we have had it.

We will most likely move to subversion, and set up a subversion server 
on openEHR.org. Subversion is essentially the "new CVS" and handles 
moves and renames properly, and also has some semblance of change sets. 
The biomedical engineering group at the university of Valencia where I 
have been for the last couple of days have been using it for a while and 
report no problems, and showed me integrations with Eclipse and 
JBuilder. (Not sure if refactoring inside those tools does the right 
things to Subversion, but we'll test that).

Unless anyone in the community has some strong reason or evidence why 
subversion would not be a good choice, we will migrate in the next few 
weeks. We cannot guarantee that all interior versions of openEHR 
repositories will be kept intact when migrating the files, but we will 
do our best.

We will announce further details as we know them.

- thomas beale


-- 
___________________________________________________________________________________
CTO Ocean Informatics (http://www.OceanInformatics.biz)
Research Fellow, University College London (http://www.chime.ucl.ac.uk)
Chair Architectural Review Board, openEHR (http://www.openEHR.org)

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