Prepare 0.12.0 release (#892)

Author: collerek

docs/releases.md

@@ -1,3 +1,20 @@
+# 0.12.0
+
+## ✨ Breaking Changes
+
+* `Queryset.bulk_create` will now raise `ModelListEmptyError` on empty list of models (by @ponytailer - thanks!) [#853](https://github.com/collerek/ormar/pull/853)
+
+## ✨ Features
+* `Model.upsert()` now handles a flag `__force_save__`: `bool` that allow upserting the models regardless of the fact if they have primary key set or not. 
+Note that setting this flag will cause two queries for each upserted model -> `get` to check if model exists and later `update/insert` accordingly. [#889](https://github.com/collerek/ormar/pull/853)
+
+## 🐛 Fixes
+
+* Fix for empty relations breaking `construct` method (by @Abdeldjalil-H - thanks!) [#870](https://github.com/collerek/ormar/issues/870)
+* Fix save related not saving models with already set pks (including uuid) [#885](https://github.com/collerek/ormar/issues/885)
+* Fix for wrong relations exclusions depending on the order of exclusions [#779](https://github.com/collerek/ormar/issues/779)
+* Fix `property_fields` not being inherited properly [#774](https://github.com/collerek/ormar/issues/774)
+
 # 0.11.3
 
 ## ✨ Features