Bunch of changes, like a lot

crates/convertis-plugin-api/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "convertis-plugin-api"
-version.workspace = true
+version = "2.0.0"
 edition.workspace = true
 authors.workspace = true
 license.workspace = true

crates/convertis-plugin-api/src/lib.rs

@@ -21,18 +21,12 @@ use std::{
 
 /// The newest stable wire protocol implemented by this SDK.
 pub const API_VERSION: u32 = 2;
-pub const ENGINE_VERSION: &str = "0.3.0";
 pub const MANIFEST_SYMBOL: &[u8] = b"convertis_plugin_manifest\0";
 pub const METADATA_SYMBOL_V2: &[u8] = b"convertis_plugin_metadata_v2\0";
 pub const AVAILABILITY_SYMBOL_V2: &[u8] = b"convertis_plugin_availability_v2\0";
 pub const CONVERT_SYMBOL_V2: &[u8] = b"convertis_plugin_convert_v2\0";
 pub const FREE_SYMBOL_V2: &[u8] = b"convertis_plugin_free_string_v2\0";
 
-// Protocol v1 crossed the Rust ABI boundary. These names are kept forever so
-// engines can retain an adapter for plugins built before the stable protocol.
-pub const LEGACY_MANIFEST_SYMBOL_V1: &[u8] = b"convertis_plugin_manifest_v1\0";
-pub const LEGACY_FACTORY_SYMBOL_V1: &[u8] = b"convertis_plugin_create_v1\0";
-
 #[derive(Clone, Copy, Debug, Eq, PartialEq, Serialize, Deserialize)]
 pub enum ArtifactKind {
     File,
@@ -109,7 +103,6 @@ pub trait Plugin: Send + Sync {
     fn convert(&self, request: &ConversionRequest) -> Result<(), String>;
 }
 
-pub type PluginFactory = unsafe fn() -> Box<dyn Plugin>;
 pub type PluginManifest = unsafe extern "C" fn() -> *const std::ffi::c_char;
 pub type PluginJsonCall = unsafe extern "C" fn() -> *mut c_char;
 pub type PluginConvertCall = unsafe extern "C" fn(*const c_char) -> *mut c_char;
@@ -176,12 +169,12 @@ macro_rules! export_plugin {
         #[unsafe(no_mangle)]
         pub extern "C" fn convertis_plugin_manifest() -> *const std::ffi::c_char {
             static MANIFEST: &str = concat!(
-                "{\"manifest_version\":1,\"protocol_versions\":[2],\"engine_requirement\":\">=",
-                env!("CARGO_PKG_VERSION"),
-                "\",\"plugin_id\":\"",
+                "{\"manifest_version\":1,\"protocol_versions\":[2],\"plugin_id\":\"",
                 $id,
                 "\",\"plugin_version\":\"",
                 env!("CARGO_PKG_VERSION"),
+                "\",\"engine_version\":\"",
+                env!("CONVERTIS_ENGINE_VERSION"),
                 "\",\"target\":\"",
                 env!("CONVERTIS_TARGET"),
                 "\"}\0"