This release, which is also available from the GeoTools Maven repository, is made in conjunction with GeoServer 2.11.4.
GeoTools 17.4 is a maintenance release that mainly fixes bugs but also includes some enhancements:
- Support for MongoDB as an app-schema source data store.
 - Support for enhancements in recent MySQL releases, including precise object shape spatial computations.
 
About GeoTools 17
- The wfs-ng module has now replaced gt-wfs.
 - The NetCDF module now uses NetCDF-Java 4.6.6.
 - Image processing provided by JAI-EXT 1.0.15.
 - YLSD module providing a plain-text representation of styling.
 
Upgrading
- The AbstractDataStore has finally been removed. Please transition any custom DataStore implementations to ContentDataStore (tutorial available).