Release candidate: v0.66

.github/workflows/lldb-formatter-tests.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Install rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
-          toolchain: 1.87
+          toolchain: 1.95
 
       - name: Download vscode-lldb
         uses: robinraju/release-downloader@v1

Cargo.toml

@@ -22,12 +22,13 @@ members = [
   "sdk/http",
   "sdk/scenario-format",
 
-  "tools/mxpy-snippet-generator",
   # "tools/plotter",
   "tools/interactor-system-func-calls/",
   "tools/interactor-delegation-func-calls/",
   "tools/interactor-governance-func-calls/",
   "tools/gas-schedule-generator",
+  "tools/managed-mem-bench",
+  "tools/mxpy-snippet-generator",
   "tools/op-test-gen",
   "tools/wat-gen",
 

chain/core/Cargo.toml

@@ -17,13 +17,14 @@ keywords = ["multiversx", "blockchain", "vm", "tools"]
 categories = ["cryptography::cryptocurrencies", "development-tools::debugging"]
 
 [features]
-std = ["bech32", "serde", "hex"]
+std = ["bech32", "serde", "hex", "blake2"]
 
 [dependencies]
 bitflags = "2.9"
 bech32 = { version = "0.11", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
 hex = { version = "0.4", optional = true }
+blake2 = { version = "0.10", optional = true }
 
 [dependencies.multiversx-sc-codec]
 version = "=0.25.0"

chain/core/src/std.rs

@@ -1,3 +1,5 @@
 mod bech32_address;
+mod code_hash;
 
 pub use bech32_address::Bech32Address;
+pub use code_hash::{CODE_HASH_LEN, code_hash};

chain/core/src/std/code_hash.rs

@@ -0,0 +1,11 @@
+use blake2::{Blake2b, Digest, digest::consts::U32};
+
+pub const CODE_HASH_LEN: usize = 32;
+
+/// Computes the code hash of a smart contract.
+///
+/// Uses Blake2b with a 256-bit (32-byte) digest.
+/// This is the standard way to identify a contract's code on the MultiversX blockchain.
+pub fn code_hash(code: &[u8]) -> [u8; CODE_HASH_LEN] {
+    Blake2b::<U32>::digest(code).into()
+}