docs: Update clang/gcc versions supported

Matthew Gretton-Dann · Matthew Gretton-Dann · commit a48e36e2e181 · 2020-02-25T09:28:39.000Z
diff --git a/docs/language/support/versions-compilers.csv b/docs/language/support/versions-compilers.csv
@@ -1,7 +1,7 @@
 Language,Variants,Compilers,Extensions
-C/C++,"C89, C99, C11, C18, C++98, C++03, C++11, C++14, C++17","Clang (and clang-cl [1]_) extensions (up to Clang 8.0),
+C/C++,"C89, C99, C11, C18, C++98, C++03, C++11, C++14, C++17","Clang (and clang-cl [1]_) extensions (up to Clang 9.0),
 
-GNU extensions (up to GCC 8.3), 
+GNU extensions (up to GCC 9.2),
 
 Microsoft extensions (up to VS 2019),
 
