Update changelog

CHANGELOG.md

@@ -1,5 +1,19 @@
 # redb - Changelog
 
+## 1.4.0 - 2023-11-21
+* Add `Builder::set_repair_callback()` which can be used to set a callback function that will be invoked if the database needs repair while opening it.
+* Add support for custom storage backends. This is done by implementing the `StorageBackend` trait and
+  using the `Builder::create_with_backend` function. This allows the database to be stored in a location other
+  than the filesystem
+* Implement `RedbKey` and `RedbValue` for `char`
+* Implement `RedbKey` and `RedbValue` for `bool`
+* Implement `TableHandle` for `Table`
+* Implement `MultimapTableHandle` for `MultimapTable`
+* Fix panic that could occur when inserting a large number of fixed width values into a table within a single transaction
+* Fix panic when calling `delete_table()` on a table that is already open
+* Improve performance for fixed width types
+* Support additional platforms
+
 ## 1.3.0 - 2023-10-22
 * Implement `RedbKey` for `Option<T>`
 * Implement `RedbValue` for `Vec<T>`