Added upgrade command to changelog

CHANGELOG.md

@@ -3,15 +3,23 @@
 ## 0.11
 
 * redactions are now an optional feature that must be turned on to be used (`redactions`).
-* make RON support optional.
+* RON format is now an optional feature that must be turned on to be used (`ron`).
 * added support for sorting maps before serialization.
 * added settings support.
 * added support for overriding the snapshot path.
-* added an `--accept` option to `cargo insta test`
-* added `--force-update-snapshots` option to `cargo insta test`
 * correctly handle nested macros that might contain inline snapshots.
 * use thread name as snapshot name for inline snapshots.
 * use leading whitespace normalization for inline snapshots.
 * removed `creator` and `created` field from snapshot metadata.
 * removed the `_matches` suffix from all macros.
+* added an `--accept` option to `cargo insta test`
+* added `--force-update-snapshots` option to `cargo insta test`
 * added `--jobs` and `--release` argument to `cargo insta test`.
+
+To upgrade to the new insta macros and snapshot formats you can use
+[`fastmod`](https://crates.io/crates/fastmod) and `cargo-insta` together:
+
+    $ cargo install fastmod
+    $ cargo install cargo-insta
+    $ fastmod '\bassert_([a-z]+_snapshot)_matches!' 'assert_${1}!' -e rs --accept-all
+    $ cargo insta test --all --force-update-snapshots --accept