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-rw-r--r--ChangeLog3
-rw-r--r--Doc/Zsh/compat.yo6
2 files changed, 9 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 882b15ce9..dd9fa8050 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2021-05-03  dana  <dana@dana.is>
 
+	* 48551 (tweaked per 48565, 48629): Doc/Zsh/compat.yo: Add
+	disclaimer about POSIX compliance and emulation of other shells
+
 	* 48614 (tweaked per 48630): Doc/Zsh/builtins.yo,
 	Doc/Zsh/options.yo, README, Src/builtin.c, Test/B10getopts.ztst:
 	Calculate OPTIND according to POSIX_BUILTINS
diff --git a/Doc/Zsh/compat.yo b/Doc/Zsh/compat.yo
index f1be15fee..6e4dbcfa4 100644
--- a/Doc/Zsh/compat.yo
+++ b/Doc/Zsh/compat.yo
@@ -74,3 +74,9 @@ tt(PROMPT_SUBST)
 and
 tt(SINGLE_LINE_ZLE)
 options are set if zsh is invoked as tt(ksh).
+
+Please note that, whilst reasonable efforts are taken to address
+incompatibilities when they arise, zsh does not guarantee complete
+emulation of other shells, nor POSIX compliance. For more information on
+the differences between zsh and other shells, please refer to chapterĀ 2
+of the shell FAQ, uref(https://www.zsh.org/FAQ/).