chore: Guard the new feature with cosmwasm_2_2 capability

contracts/hackatom/Cargo.toml

@@ -30,7 +30,7 @@ cranelift = ["cosmwasm-vm/cranelift"]
 
 [dependencies]
 cosmwasm-schema = { path = "../../packages/schema" }
-cosmwasm-std = { path = "../../packages/std", default-features = false, features = ["std", "abort"] }
+cosmwasm-std = { path = "../../packages/std", default-features = false, features = ["std", "abort", "cosmwasm_2_2"] }
 schemars = "0.8.12"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 sha2 = "0.10"

contracts/hackatom/tests/integration.rs

@@ -53,7 +53,7 @@ fn make_init_msg(api: &MockApi) -> (InstantiateMsg, String) {
 #[test]
 fn proper_initialization() {
     let mut deps = mock_instance(WASM, &[]);
-    assert_eq!(deps.required_capabilities().len(), 0);
+    assert_eq!(deps.required_capabilities().len(), 7);
 
     let verifier = deps.api().addr_make("verifies");
     let beneficiary = deps.api().addr_make("benefits");

packages/derive/src/lib.rs

@@ -182,7 +182,7 @@ fn entry_point_impl(attr: TokenStream, item: TokenStream) -> TokenStream {
     let fn_name = &function.sig.ident;
     let wasm_export = format_ident!("__wasm_export_{fn_name}");
 
-    // Migrate entry point can take 2 or 3 arguments.
+    // Migrate entry point can take 2 or 3 arguments
     let do_call = if fn_name == "migrate" && args == 3 {
         format_ident!("do_migrate_with_info")
     } else {

packages/std/src/exports.rs

@@ -205,6 +205,7 @@ where
 /// - `M`: message type for request
 /// - `C`: custom response message type (see CosmosMsg)
 /// - `E`: error type for responses
+#[cfg(feature = "cosmwasm_2_2")]
 pub fn do_migrate_with_info<Q, M, C, E>(
     migrate_with_info_fn: &dyn Fn(DepsMut<Q>, Env, M, MigrateInfo) -> Result<Response<C>, E>,
     env_ptr: u32,

packages/std/src/lib.rs

@@ -127,10 +127,12 @@ mod imports;
 #[cfg(target_arch = "wasm32")]
 mod memory; // Used by exports and imports only. This assumes pointers are 32 bit long, which makes it untestable on dev machines.
 
+#[cfg(all(feature = "cosmwasm_2_2", target_arch = "wasm32"))]
+pub use crate::exports::do_migrate_with_info;
 #[cfg(target_arch = "wasm32")]
 pub use crate::exports::{
     do_execute, do_ibc_destination_callback, do_ibc_source_callback, do_instantiate, do_migrate,
-    do_migrate_with_info, do_query, do_reply, do_sudo,
+    do_query, do_reply, do_sudo,
 };
 #[cfg(all(feature = "stargate", target_arch = "wasm32"))]
 pub use crate::exports::{