Now it is possible to try and test new functionality soon after it is added in PostGIS trunk. How up to date the version on the site is might vary because there will be changes on the road towards PostGIS 2.0 that can not be automatically updated on the site.
How to use the trunk version you can learn from this tiny tutorial.
To see what new functions is there take a look at the SVN documentation snapshot
hi,
How do i upgrade postgis 1.5 to postgis 2.0 ?
Please let me know..
Thanks and regards,
Venkat
Hallo Venkat
PostGIS 2.0 is not released yet. It will be released springtime 2011. But if you want to test it in the state it is right now you have two options. If you are on windows platform you can try the experimental binaries found at this page:
http://postgis.org/download/windows/experimental.php
if you are at linux platform you have to compile yourself from source, but it is quite straight forward and is described in the PostGIS documentation. On the wikipages at :
http://trac.osgeo.org/postgis
you can also find information how to compile in windows, but that is a little bit more messy.
But be aware 2.0 is just in quite early development state so it is not stable as the released versions.
HTH
/Nicklas