Works fine, looks good to me with 8.6.
Note that there's a new (7.2.3) version available.
Stu
diff -Nurp /usr/ports/devel/mercurial/Makefile ./Makefile
--- /usr/ports/devel/mercurial/Makefile Fri Jan 9 09:00:04 2026
+++ ./Makefile Wed Jul 29 12:50:55 2026
@@ -1,6 +1,8 @@
COMMENT-main = fast, lightweight source control management
COMMENT-x11 = graphical tooling for mercurial
+REVISION-x11 = 0
+
MODPY_DISTV = 7.1.2
DISTNAME = mercurial-${MODPY_DISTV}
CATEGORIES = devel
@@ -14,6 +16,7 @@ SITES =
https://www.mercurial-scm.org/release/
MODULES = lang/python x11/tk
MODPY_PYBUILD = setuptools_scm
+MODTK_VERSION = 8.6
USE_GMAKE = Yes
