Prepare 1.6.0 drift release

Author: simolus3

drift/CHANGELOG.md

@@ -1,4 +1,4 @@
-## 1.6.0-dev
+## 1.6.0
 
 - Add the `unique()` method to columns and the `uniqueKeys` override to tables
   to define unique constraints in Dart tables.
@@ -10,6 +10,9 @@
   to access sqlite3 without any external JavaScript libraries, but requires you to
   add a [WebAssembly module](https://github.com/simolus3/sqlite3.dart/tree/main/sqlite3#wasm-web-support)
   to the `web/` folder.
+  Please note that this specific library is not subject to semantic versioning
+  until it leaves its experimental state. It also isn't suitable for production
+  use at the moment.
 - Internally use `package:js` to wrap sql.js.
 
 ## 1.5.0

drift/lib/wasm.dart

@@ -4,6 +4,11 @@
 /// This library is highly experimental and not production readdy at the moment.
 /// It exists for development and testing purposes for interested users.
 ///
+/// While this library is marked as [experimental], it is not subject to
+/// semantic versioning. Future drift updates with a minor update might break
+/// APIs defined in this package or change the way data is persisted in
+/// backwards-incompatible ways.
+///
 /// To use drift on the web, use the `package:drift/web.dart` library as
 /// described in the [documentation](https://drift.simonbinder.eu/web/).
 @experimental