vhost-user-backend: release v0.11.0

Release a new version with the following breaking changes:
- replaced master/slave with frontend/backend in public API
- changed VhostUserBackend::handle_request() return type

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>

crates/vhost-user-backend/CHANGELOG.md

@@ -2,18 +2,26 @@
 ## [Unreleased]
 
 ### Added
-- [[#173]](https://github.com/rust-vmm/vhost/pull/173) vhost-user-backend: Added convenience function `serve`
 
 ### Changed
-- Change uses of master/slave for frontend/backend in the codebase.
-- [[#192]](https://github.com/rust-vmm/vhost/pull/192) vhost-user-backend: remove return value from handle_event
-- [[#155]](https://github.com/rust-vmm/vhost/pull/155) Converted generic type
-  parameters of VhostUserBackend into associated types.
 
 ### Fixed
 
 ### Deprecated
 
+## v0.11.0
+
+### Added
+- [[#173]](https://github.com/rust-vmm/vhost/pull/173) vhost-user-backend: Added convenience function `serve`
+
+### Changed
+- [[#187]](https://github.com/rust-vmm/vhost/pull/187) Clean master slave
+  - Replaced master/slave with frontend/backend in the codebase and public API.
+- [[#192]](https://github.com/rust-vmm/vhost/pull/192) vhost-user-backend: remove return value from handle_event
+- [[#155]](https://github.com/rust-vmm/vhost/pull/155) Converted generic type
+  parameters of VhostUserBackend into associated types.
+- [[#116]](https://github.com/rust-vmm/vhost/pull/116) Upgrade to 2021 edition
+
 ## v0.10.1
 
 ### Fixed

crates/vhost-user-backend/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "vhost-user-backend"
-version = "0.10.1"
+version = "0.11.0"
 authors = ["The Cloud Hypervisor Authors"]
 keywords = ["vhost-user", "virtio"]
 description = "A framework to build vhost-user backend service daemon"