Hi Alex,

All changes in the 9.0 storage layout are backward compatible. If you update your database, it will be optimized incrementally.

Breaking changes in BaseX will be documented explicitly. For example, if you have written a lot of XQuery code, you may need to update some BaseX-specific function calls. You will find those changes in the docs by searching for "9.0" or "9.1".

Hope this helps,

Christian

Am Mi., 19. Dez. 2018, 20:27 hat Alex R. Loayza <logal3@yahoo.com> geschrieben:

Hello,

I want to upgrade from 8.5.3 to 9.1.1, but I'm unsure if the data format is compatible. In the changelog for 9.0, I find that regarding storage there has been the following change: "Improved database compression (short strings, whitespaces)"

Does this mean that the old data format is incompatible? If so, how to migrate the data?

Is there some documentation page detailing compatibility of data formats across BaseX versions? I'm been unable to find it. An upgrade guide would be a welcome addition to the docs!

Best regards,

Alex