zcashd 5.7.0 deprecates fetch-params.sh and zcash-fetch-params and bundles zk-SNARK parameters instantly so they don’t must be downloaded or saved individually. 

Until it is advisable to generate transactions utilizing the deprecated Sprout shielded pool, you may delete the parameter recordsdata saved in these directories to save lots of house, as they’re now not learn or utilized by zcashd. When you do want to use the Sprout pool, you will want the sprout-groth16.params at the moment out there for obtain right here.

Moreover, 5.7.0 stories new mempool metrics.  

All node operators, which embody our mining and different ecosystem companions, ought to improve to this newest model as quickly as attainable. Please notice that model 5.6.1 will expire on or round Wednesday, October 11.

Extra modifications have been included on this launch. For technical particulars, please learn the total launch notes out there at https://github.com/zcash/zcash/releases/tag/v5.7.0.