I still don't understand, why was abandoned SVN and is there some git instead.

In svn times when there was some critical problem, usually was patch after some hours. One person wrote it, submited it and other users can download and use.

now there was critical bug with interwiki.py, which happened about 15th september. In these days was old sourceforge tracker moved to bugzilla, so report was lost somewhere. After ten days I reported this bug again[1]. Three days later there was patch, but we had to wait one week more when another developer rewieved this patch. 

now there are hundrets of new unconnected articles in wiktionaries, wikiquotes, wikinews...

In the meantime there was some diff, from which was possible to patch manually scripts [2], but not in plaintext, with tabs instead of spaces; and nowhere was complete patched file to download.

The second problem is git: some people on IRC said, that there were many people in Hackathon who weren't able to instal git correctly - and all of them have PC with Windows - and it were about 80% of people with windows.
Is somewhere *simple manual* how to install and run git updates on windows?
or is somewhere *simple manual* how to use svn again?
and is somewhere possibility do download certain file from bot? now there are only nightly dumps, which overwrites my changes in files when I want to unpack it...

[1] https://bugzilla.wikimedia.org/show_bug.cgi?id=54480
[2] https://gerrit.wikimedia.org/r/#/c/86047/3/wikipedia.py

JAnD