relnode: document the move to `zstd` as default compression
Differential Revision: https://phab.mercurial-scm.org/D10497
--- a/relnotes/next Tue Apr 20 16:12:19 2021 +0200
+++ b/relnotes/next Tue Apr 20 16:18:43 2021 +0200
@@ -11,6 +11,16 @@
for compression. The default is single threaded operation. Currently
only supported for zstd.
+== Default Format Change ==
+
+These changes affects newly created repositories (or new clone) done with
+Mercurial 5.8.
+
+ * The `ZSTD` compression will now be used by default for new repositories
+ when available. This compression format was introduced in Mercurial 5.0,
+ released in May 2019. See `hg help config.format.revlog-compression` for
+ details.
+
== New Experimental Features ==
* There's a new `diff.merge` config option to show the changes