This is a patch version.
The version focus on improving the read & write performances that in some cases were worse than v1. 2.0.3.1000 is now faster on all those scenarios by 10 to 42%. Otherwise few stability and installer fixes were added.
Please see changelog for more details.
And again here is how to migrate an existing > 1.1.0 filesystem to 2.0.0.
Thanks to all the contributors as always !!!