doc

Author: scivision

Readme.md

@@ -7,6 +7,11 @@
 Matlab users coming from other languages often notice the missing functionality contained within this user-developed, unofficial "stdlib" for Matlab.
 These system "sys", file I/O "fileio" and HDF5/NetCDF "hdf5nc" function are useful across several of our own and others projects.
 
+The absolute minimum Matlab release is R2019b.
+
+* HDF5 full features (string, scalar dataspace) requires Matlab >= R2020a
+* NetCDF4 string support requires Matlab >= R2021b
+
 Self-tests can be run from that matlab-stdlib/ directory:
 
 ```matlab