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-rw-r--r--NEWS7
1 files changed, 6 insertions, 1 deletions
diff --git a/NEWS b/NEWS
index 3ac57eca4e..06ae43d3f0 100644
--- a/NEWS
+++ b/NEWS
@@ -13,7 +13,12 @@ Major new features:
Deprecated and removed features, and other changes affecting compatibility:
- [Add deprecations, removals and changes affecting compatibility here]
+ * The stdio.h functions 'getc' and 'putc' are no longer defined as macros.
+ This was never required by the C standard, and the macros just expanded
+ to call alternative names for the same functions. If you hoped getc and
+ putc would provide performance improvements over fgetc and fputc, instead
+ investigate using (f)getc_unlocked and (f)putc_unlocked, and, if
+ necessary, flockfile and funlockfile.
Changes to build and runtime requirements: