deploy: c0b2878a44

community/contribution_guidelines/index.md

@@ -80,7 +80,7 @@ The test suite should report:
 
 The tests are located in [`tests/src/unit-*.cpp`](https://github.com/nlohmann/json/tree/develop/tests/src) and contain [doctest assertions](https://github.com/doctest/doctest/blob/master/doc/markdown/assertions.md) like `CHECK`. The tests are structured along the features of the library or the nature of the tests. Usually, it should be clear from the context which existing file needs to be extended, and only very few cases require creating new test files.
 
-When fixing a bug, edit `unit-regression2.cpp` and add a section referencing the fixed issue.
+When fixing a bug, edit `unit-regression3.cpp` and add a section referencing the fixed issue. `unit-regression2.cpp` holds the older tests; the two files exist because a single one grew large enough for the MinGW linker to fail relocating it, so please keep adding to the smaller file rather than growing the larger one.
 
 #### Exceptions