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The following functions have been removed:
grib_handle_new_from_template: This was already deprecated in GRIB-API and has been replaced by grib_handle_new_from_samples.
grib_context_new: This was experimental. One should use the default context
For keys whose value is MISSING e.g. the number of points per latitude (Ni) for a reduced gaussian grid: GRIB-API would return -1 whereas ecCodes returns the constant CODES_MISSING_LONG.
It is best to check this using the function "grib_is_missing" rather than comparing the result of grib_get with a number.
In ecCodes we have also removed the Fortran 77 library (libgrib_api_f77.a) and the API examples.
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