Adding release note for V0.5

docs/releases/0.5-NOTES.md

@@ -0,0 +1,49 @@
+## Release notes for firmament v0.5
+
+# Significant changes
+
+* Adding Support for ephemeral storage.
+* Support for events feature in Firmament.
+* Static Persistant Volume support, [more info.](https://kubernetes.io/docs/concepts/storage/persistent-volumes/)
+* Bug fixes and minor performance improvements.
+
+# Required Actions
+
+To enable the new CPU-MEM cost model ```--flow_scheduling_cost_model```
+flag should be set to '10'
+like shown below
+
+```--flow_scheduling_cost_model=10```
+
+To enable the Pod Affinity/Anti-Affinity symmetry ```--pod_affinity_antiaffinity_symmetry```
+flag should be set to 'true' in the firmament config file 
+like show below 
+
+```firmament_scheduler_cpu_mem.cfg=true```
+
+This fix is based above the CPU-MEM cost model.
+This feature currently are not supported in other cost model.
+
+# Highlighted changes
+
+Ephemeral Storage and Events support.
+Static Persistant Volume support is also avaliable from the V0.5 'Poseidon' release.
+
+# Static Persistant Volume support
+
+This works with V0.5 Poseidon release. 
+There is no change for this feature in firmament.
+
+Pre-Bound PVC to a PV will be picked by 'Poseidon' if a Pod has that PVC requirement.
+
+It will be used as a node selector term in the NodeAffinity 'Hard-constraint' section of the Pod.
+
+When 'Frimament' try to schedule this Task it will try to satify the NodeAffinity Hard Constraints, 
+which will result in the Pod getting scheduled on the Node which satisfy the PV's NodeSelector term.
+
+# Full change list
+
+* [Adding Support for ephemeral storage ](https://github.com/Huawei-PaaS/firmament/pull/12)
+* [Adding events feature in Firmament ](https://github.com/Huawei-PaaS/firmament/pull/13)
+* [Adding max pods feature](https://github.com/Huawei-PaaS/firmament/pull/14)
+* [Removed max pods changes](https://github.com/Huawei-PaaS/firmament/pull/15)