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Connection API now includes ‘R_GetConnection()’ which allows packages implementing connections to convert R ‘connection’ objects to ‘Rconnection’ handles used in the API. Code which previously used the low-level R-internal ‘getConnection()’ entry point should switch to the official API.
‘tsp(x) <- NULL’ did not handle objects inheriting from both ‘"ts"’ and ‘"mts"’ properly. PR#16769