chdir(2) was specified in POSIX.1-1988 with the prototype
int chdir(char *path); [1]

POSIX.1-1990 then changed the prototype to
int chdir(const char *path); [2]

[1] IEEE Std 1003.1-1988, Section 5.2.1 "Change Current Working
Directory".
[2] IEEE Std 1003.1-1990, Section 5.2.1 "Change Current Working
Directory".

Signed-off-by: Seth McDonald <redacted>
---
 man/man2/chdir.2 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/man/man2/chdir.2 b/man/man2/chdir.2
index be53f87454e4..a313071d2e1e 100644
--- a/man/man2/chdir.2
+++ b/man/man2/chdir.2

@@ -113,6 +113,13 @@ .SH HISTORY
 SVr4,
 4.4BSD,
 POSIX.1-2001.
+.P
+POSIX.1-1988 initially specified the function signature of
+.BR chdir ()
+with a non-const-qualified
+.I path
+parameter.
+This was remedied in POSIX.1-1990.
 .SH NOTES
 The current working directory is the starting point for interpreting
 relative pathnames (those not starting with \[aq]/\[aq]).

-- 
2.47.3