Prepare 0.21.0 release

Author: gpeacock

CHANGELOG.md

@@ -6,6 +6,11 @@ This project adheres to [Semantic Versioning](https://semver.org), except that 
 
 Do not manually edit this file. It will be automatically updated when a new release is published.
 
+## 0.21.0
+_04 May 2023_
+
+* (MINOR) Added ResourceNotFound error ([#244](https://github.com/contentauth/c2pa-rs/pull/244))
+
 ## 0.20.3
 _03 May 2023_
 

README.md

@@ -61,7 +61,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-c2pa = "0.20.3"
+c2pa = "0.21.0"
 ```
 
 If you want to read or write a manifest file, add the `file_io` dependency to your `Cargo.toml`. For example:

make_test_images/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "make_test_images"
-version = "0.20.3"
+version = "0.21.0"
 authors = ["Gavin Peacock <gpeacock@adobe.com>"]
 license = "MIT OR Apache-2.0"
 edition = "2018"

sdk/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "c2pa"
-version = "0.20.3"
+version = "0.21.0"
 description = "Rust SDK for C2PA (Coalition for Content Provenance and Authenticity) implementors"
 authors = ["Maurice Fisher <mfisher@adobe.com>", "Gavin Peacock <gpeacock@adobe.com>", "Eric Scouten <scouten@adobe.com>", "Leonard Rosenthol <lrosenth@adobe.com>", "Dave Kozma <dkozma@adobe.com>"]
 license = "MIT OR Apache-2.0"