Changes made by Commission Delegated Regulation (EU) 2019/934 of 12 March 2019 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council as regards wine-growing areas where the alcoholic strength may be increased, authorised oenological practices and restrictions applicable to the production and conservation of grapevine products, the minimum percentage of alcohol for by-products and their disposal, and publication of OIV files: Commission Implementing Regulation (EU) 2015/596 of 15 April 2015 amending Regulation (EC) No 606/2009 as regards the increase in the maximum total sulphur dioxide content where the climate conditions make this necessary