latest delivery policy

roboplc-derive/Cargo.toml

 [package]
 name = "roboplc-derive"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 authors = ["Serhij S. <div@altertech.com>"]
 license = "Apache-2.0"

roboplc-derive/src/lib.rs

@@ -205,6 +205,7 @@ fn parse_delivery_policy(s: Option<&str>) -> proc_macro2::TokenStream {
         Some("single_optional") => quote! { ::roboplc::DeliveryPolicy::SingleOptional },
         Some("optional") => quote! { ::roboplc::DeliveryPolicy::Optional },
         Some("always") => quote! { ::roboplc::DeliveryPolicy::Always },
+        Some("latest") => quote! { ::roboplc::DeliveryPolicy::Latest },
         Some(v) => panic!("Unknown policy variant: {}", v),
         None => panic!("Policy variant not specified"),
     }