chore(release): promote rc-2026.5.4

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches: [main, "rc-*"]
   pull_request:
-    branches: [main]
+    branches: [main, "rc-*"]
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/release.yml

@@ -82,13 +82,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Use ubuntu-22.04 for GLIBC 2.35 compatibility with server deployments
-          - target: x86_64-unknown-linux-gnu
+          # Linux builds use musl for portability across glibc and musl distros
+          # (e.g. Alpine). Built via `cross` so the musl toolchain is provided
+          # by the cross-rs container image.
+          - target: x86_64-unknown-linux-musl
             os: ubuntu-22.04
             binary: ant-node
             archive: tar.gz
+            cross: true
             friendly_name: linux-x64
-          - target: aarch64-unknown-linux-gnu
+          - target: aarch64-unknown-linux-musl
             os: ubuntu-22.04
             binary: ant-node
             archive: tar.gz

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ant-node"
-version = "0.11.4"
+version = "0.11.5"
 edition = "2021"
 authors = ["David Irvine <david.irvine@maidsafe.net>"]
 description = "Pure quantum-proof network node for the Autonomi decentralized network"
@@ -23,6 +23,12 @@ name = "ant-devnet"
 path = "src/bin/ant-devnet/main.rs"
 
 [dependencies]
+# Global allocator. musl's default malloc is significantly slower than
+# glibc's under concurrent allocation churn, which matches the node's
+# steady-state workload. mimalloc neutralises that regression for the
+# musl Linux builds (and tends to beat glibc's allocator too).
+mimalloc = "0.1"
+
 # Wire protocol — the single version-pin shared with ant-client.
 # Bumping ant-protocol's `evmlib`/`saorsa-core`/`saorsa-pqc` pins ripples
 # through here automatically; we keep a direct saorsa-core dep for
@@ -106,6 +112,9 @@ page_size = "0.6"
 # Protocol serialization
 postcard = { version = "1.1.3", features = ["use-std"] }
 
+[target.'cfg(unix)'.dependencies]
+libc = "0.2"
+
 [target.'cfg(windows)'.dependencies]
 self-replace = "1"
 

src/bin/ant-devnet/main.rs

@@ -2,6 +2,9 @@
 
 #![cfg_attr(not(feature = "logging"), allow(unused_variables))]
 
+#[global_allocator]
+static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 mod cli;
 
 use ant_node::devnet::{Devnet, DevnetConfig, DevnetEvmInfo, DevnetManifest};