diff --git a/proxmox-router/Cargo.toml b/proxmox-router/Cargo.toml
index aceba947..4e415d5f 100644
--- a/proxmox-router/Cargo.toml
+++ b/proxmox-router/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "proxmox-router"
-version = "1.1.1"
+version = "1.2.0"
 authors = ["Proxmox Support Team <support@proxmox.com>"]
 edition = "2018"
 license = "AGPL-3"
diff --git a/proxmox-router/debian/changelog b/proxmox-router/debian/changelog
index 75a56230..cf0d7c43 100644
--- a/proxmox-router/debian/changelog
+++ b/proxmox-router/debian/changelog
@@ -1,3 +1,11 @@
+rust-proxmox-router (1.2.0-1) unstable; urgency=medium
+
+  * add `SerializableReturn` trait
+
+  * add streaming api handler variants
+
+ -- Proxmox Support Team <support@proxmox.com>  Tue, 12 Apr 2022 14:23:25 +0200
+
 rust-proxmox-router (1.1.1-1) unstable; urgency=medium
 
   * avoid anyhow wildcard imports
diff --git a/proxmox-router/debian/control b/proxmox-router/debian/control
index de4aa713..de155416 100644
--- a/proxmox-router/debian/control
+++ b/proxmox-router/debian/control
@@ -13,9 +13,11 @@ Build-Depends: debhelper (>= 12),
  librust-libc-0.2+default-dev <!nocheck>,
  librust-nix-0.19+default-dev (>= 0.19.1-~~) <!nocheck>,
  librust-percent-encoding-2+default-dev (>= 2.1-~~) <!nocheck>,
- librust-proxmox-lang-1+default-dev <!nocheck>,
- librust-proxmox-schema-1+default-dev <!nocheck>,
+ librust-proxmox-async-0.4+default-dev (>= 0.4.1-~~) <!nocheck>,
+ librust-proxmox-lang-1+default-dev (>= 1.1-~~) <!nocheck>,
+ librust-proxmox-schema-1+default-dev (>= 1.1-~~) <!nocheck>,
  librust-rustyline-7+default-dev <!nocheck>,
+ librust-serde-1+default-dev <!nocheck>,
  librust-serde-json-1+default-dev <!nocheck>,
  librust-tokio-1+default-dev <!nocheck>,
  librust-unicode-width-0.1+default-dev (>= 0.1.8-~~) <!nocheck>
@@ -36,8 +38,10 @@ Depends:
  librust-hyper-0.14+full-dev,
  librust-nix-0.19+default-dev (>= 0.19.1-~~),
  librust-percent-encoding-2+default-dev (>= 2.1-~~),
- librust-proxmox-lang-1+default-dev,
- librust-proxmox-schema-1+default-dev,
+ librust-proxmox-async-0.4+default-dev (>= 0.4.1-~~),
+ librust-proxmox-lang-1+default-dev (>= 1.1-~~),
+ librust-proxmox-schema-1+default-dev (>= 1.1-~~),
+ librust-serde-1+default-dev,
  librust-serde-json-1+default-dev,
  librust-unicode-width-0.1+default-dev (>= 0.1.8-~~)
 Recommends:
@@ -49,8 +53,8 @@ Suggests:
  librust-proxmox-router+tokio-dev (= ${binary:Version})
 Provides:
  librust-proxmox-router-1-dev (= ${binary:Version}),
- librust-proxmox-router-1.1-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1-dev (= ${binary:Version})
+ librust-proxmox-router-1.2-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - Rust source code
  This package contains the source for the Rust proxmox-router crate, packaged by
  debcargo for use with cargo and dh-cargo.
@@ -68,10 +72,10 @@ Provides:
  librust-proxmox-router+default-dev (= ${binary:Version}),
  librust-proxmox-router-1+cli-dev (= ${binary:Version}),
  librust-proxmox-router-1+default-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+cli-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+default-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+cli-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+default-dev (= ${binary:Version})
+ librust-proxmox-router-1.2+cli-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2+default-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+cli-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+default-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - feature "cli" and 1 more
  This metapackage enables feature "cli" for the Rust proxmox-router crate, by
  pulling in any additional dependencies needed by that feature.
@@ -87,8 +91,8 @@ Depends:
  librust-libc-0.2+default-dev
 Provides:
  librust-proxmox-router-1+libc-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+libc-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+libc-dev (= ${binary:Version})
+ librust-proxmox-router-1.2+libc-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+libc-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - feature "libc"
  This metapackage enables feature "libc" for the Rust proxmox-router crate, by
  pulling in any additional dependencies needed by that feature.
@@ -102,8 +106,8 @@ Depends:
  librust-rustyline-7+default-dev
 Provides:
  librust-proxmox-router-1+rustyline-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+rustyline-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+rustyline-dev (= ${binary:Version})
+ librust-proxmox-router-1.2+rustyline-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+rustyline-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - feature "rustyline"
  This metapackage enables feature "rustyline" for the Rust proxmox-router crate,
  by pulling in any additional dependencies needed by that feature.
@@ -114,11 +118,11 @@ Multi-Arch: same
 Depends:
  ${misc:Depends},
  librust-proxmox-router-dev (= ${binary:Version}),
- librust-proxmox-schema-1+test-harness-dev
+ librust-proxmox-schema-1+test-harness-dev (>= 1.1-~~)
 Provides:
  librust-proxmox-router-1+test-harness-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+test-harness-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+test-harness-dev (= ${binary:Version})
+ librust-proxmox-router-1.2+test-harness-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+test-harness-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - feature "test-harness"
  This metapackage enables feature "test-harness" for the Rust proxmox-router
  crate, by pulling in any additional dependencies needed by that feature.
@@ -132,8 +136,8 @@ Depends:
  librust-tokio-1+default-dev
 Provides:
  librust-proxmox-router-1+tokio-dev (= ${binary:Version}),
- librust-proxmox-router-1.1+tokio-dev (= ${binary:Version}),
- librust-proxmox-router-1.1.1+tokio-dev (= ${binary:Version})
+ librust-proxmox-router-1.2+tokio-dev (= ${binary:Version}),
+ librust-proxmox-router-1.2.0+tokio-dev (= ${binary:Version})
 Description: Proxmox API Router and CLI utilities - feature "tokio"
  This metapackage enables feature "tokio" for the Rust proxmox-router crate, by
  pulling in any additional dependencies needed by that feature.