# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2019-09-09 19:56:17
# Node ID 96b22e58dc67c2a6004eec5927e59fc16796b541
# Parent  08fce968d00bf9ee976e2f83b31c6d6149412d1c

relnotes: we now require `sh` to support $(command) syntax to run test suite

For example, Solaris before version 11 had /bin/sh pointing to the old
Bourne Shell (which doesn't support $(command) syntax).

Differential Revision: https://phab.mercurial-scm.org/D6833

diff --git a/relnotes/next b/relnotes/next
--- a/relnotes/next
+++ b/relnotes/next
@@ -9,6 +9,11 @@
 
 == Backwards Compatibility Changes ==
 
+ * A shell that supports `$(command)`` syntax for command substitution is now
+   required for running the test suite. The test runner normally uses
+   `sh`, so if that is a shell that doesn't support `$(command)` syntax,
+   you can override it by setting `$HGTEST_SHELL` or by passing it to
+   `run-tests.py --shell <shell>`.
 
 == Internal API Changes ==