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 ![Status](https://github.com/NOAA-EMC/NCEPLIBS-sp/workflows/developer/badge.svg)
 
+> [!NOTE]
+> The functionality of this library has been merged into
+> [NCEPLIBS-ip](https://github.com/NOAA-EMC/NCEPLIBS-ip) as of the latest
+> version (5.0), which contains the full set of sp functionality as of
+> the most recent release (2.5.0). All future development should use **NCEPLIBS-ip**.
+
 # NCEPLIBS-sp
 
 The spectral transform library (splib) contains FORTRAN subprograms to