CHANGELOG: start the release notes for v3.7.0

Likely releasing in the coming days.

CHANGELOG.md

@@ -1,9 +1,21 @@
 # Changelog
 
-## [3.6.1] - 2023-??-??
+## [3.7.0] - 2023-06-??
 
+- **syntax**
+  - Correctly parse `$foo#bar` as a single word - [#1003]
+  - Make `&>` redirect operators an error in POSIX mode - [#991]
+  - Avoid producing invalid shell when minifying some heredocs - [#923]
+  - Revert the simplification of `${foo:-}` into `${foo-}` - [#970]
 - **interp**
-  - Set `EUID` just like `UID`
+  - Add `ExecHandlers` to support layering multiple middlewares - [#964]
+  - Add initial support for the `select` clause - [#969]
+  - Support combining the `errexit` and `pipefail` options - [#870]
+  - Set `EUID` just like `UID` - [#958]
+  - Replace panics on unimplemented builtins with errors - [#999]
+  - Tweak build tags to support building for `js/wasm` - [#983]
+- **syntax/typedjson**
+  - Avoid `reflect.Value.MethodByName` to reduce binary sizes - [#961]
 
 ## [3.6.0] - 2022-12-11