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Quartz: fonts are now located using Core Graphics API instead of deprecated ATS which is no longer supported in the macOS 13 SDK (PR#18426). This also addresses an issue where the currently used font in the Quartz device context was not correctly retained.
(Windows) Installing a packge with a ‘src/Makefile.win,ucrt’ file includes ‘~/.R/Makevars.win64’ in the search for user makevars, as documented in “R Installation and Administration” and done for packages with a ‘src/Makevars.win,ucrt’ file.
(Windows) Math symbols in text drawing functions are again rendered correctly (PR#18440). This fixes a regression in R 4.2.1 caused by a fix in PR#18382 which uncovered an issue in GraphApp due to which the symbol charset was not used with TT Symbol font face.