Migrate to incrementalmerkletree 0.5

.github/workflows/bench.yml

@@ -14,10 +14,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.56.1
-          override: true
       - name: Run benchmark
         run: cargo bench -- --output-format bencher | tee output.txt
       - name: Store benchmark result

.github/workflows/ci.yml

@@ -12,15 +12,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          override: true
       - name: Run tests
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --verbose
+        run: cargo test --verbose
 
   build:
     name: Build target ${{ matrix.target }}
@@ -41,29 +34,17 @@ jobs:
   bitrot:
     name: Bitrot check
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          override: true
       # Build benchmarks to prevent bitrot
       - name: Build benchmarks
-        uses: actions-rs/cargo@v1
-        with:
-          command: build
-          args: --benches
+        run: cargo build --benches
 
   book:
     name: Book tests
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          override: true
       - name: Setup mdBook
         uses: peaceiris/actions-mdbook@v1
         with:
@@ -100,38 +81,17 @@ jobs:
   doc-links:
     name: Intra-doc links
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          override: true
-      - name: cargo fetch
-        uses: actions-rs/cargo@v1
-        with:
-          command: fetch
-
-      # Ensure intra-documentation links all resolve correctly
+      - run: cargo fetch
       # Requires #![deny(intra_doc_link_resolution_failure)] in crates.
       - name: Check intra-doc links
-        uses: actions-rs/cargo@v1
-        with:
-          command: doc
-          args: --document-private-items
+        run: cargo doc --document-private-items
 
   fmt:
     name: Rustfmt
     timeout-minutes: 30
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          override: true
-      - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: -- --check
+      - run: cargo fmt -- --check

.github/workflows/lints-stable.yml

@@ -5,19 +5,14 @@ on: pull_request
 
 jobs:
   clippy:
-    name: Clippy (1.60.0)
+    name: Clippy (MSRV)
     timeout-minutes: 30
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.60.0
-          components: clippy
-          override: true
       - name: Run Clippy
         uses: actions-rs/clippy-check@v1
         with:
-          name: Clippy (1.60.0)
+          name: Clippy (MSRV)
           token: ${{ secrets.GITHUB_TOKEN }}
           args: --all-features --all-targets -- -D warnings

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to Rust's notion of
 
 ## [Unreleased]
 
+## [0.6.0] - 2023-09-08
+### Changed
+- MSRV is now 1.65.0.
+- Migrated to `incrementalmerkletree 0.5`.
+
 ## [0.5.0] - 2023-06-06
 ### Changed
 - Migrated to `zcash_note_encryption 0.4`, `incrementalmerkletree 0.4`, `bridgetree 0.3`.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "orchard"
-version = "0.5.0"
+version = "0.6.0"
 authors = [
     "Sean Bowe <[email protected]>",
     "Jack Grigg <[email protected]>",
@@ -9,7 +9,7 @@ authors = [
     "Kris Nuttycombe <[email protected]>",
 ]
 edition = "2021"
-rust-version = "1.60"
+rust-version = "1.65"
 description = "The Orchard shielded transaction protocol"
 license-file = "LICENSE-BOSL"
 repository = "https://github.com/zcash/orchard"
@@ -42,27 +42,27 @@ nonempty = "0.7"
 serde = { version = "1.0", features = ["derive"] }
 subtle = "2.3"
 zcash_note_encryption = "0.4"
-incrementalmerkletree = "0.4"
+incrementalmerkletree = "0.5"
 
 # Logging
 tracing = "0.1"
 
 # Developer tooling dependencies
-image = { version = ">= 0.24, < 0.24.5", optional = true } # 0.24.5 has MSRV 1.61
+image = { version = "0.24", optional = true }
 plotters = { version = "0.3.0", optional = true }
 
 [dev-dependencies]
-bridgetree = "0.3"
-criterion = "0.3"
+bridgetree = "0.4"
+criterion = "0.4" # 0.5 depends on clap 4 which has MSRV 1.70
 halo2_gadgets = { version = "0.3", features = ["test-dependencies"] }
 hex = "0.4"
 proptest = "1.0.0"
 zcash_note_encryption = { version = "0.4", features = ["pre-zip-212"] }
-incrementalmerkletree = { version = "0.4", features = ["test-dependencies"] }
+incrementalmerkletree = { version = "0.5", features = ["test-dependencies"] }
 
 [target.'cfg(unix)'.dev-dependencies]
-inferno = ">= 0.11, < 0.11.15"
-pprof = { version = "0.9", features = ["criterion", "flamegraph"] } # MSRV 1.56
+inferno = { version = "0.11", default-features = false, features = ["multithreaded", "nameattr"] }
+pprof = { version = "0.11", features = ["criterion", "flamegraph"] }
 
 [lib]
 bench = false

README.md

@@ -1,6 +1,6 @@
 # orchard [![Crates.io](https://img.shields.io/crates/v/orchard.svg)](https://crates.io/crates/orchard) #
 
-Requires Rust 1.60+.
+Requires Rust 1.65+.
 
 ## Documentation
 

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.60.0"
+channel = "1.65.0"
 components = [ "clippy", "rustfmt" ]

src/circuit.rs

@@ -1103,8 +1103,8 @@ mod tests {
             w.write_all(&<[u8; 32]>::from(instance.rk.clone()))?;
             w.write_all(&instance.cmx.to_bytes())?;
             w.write_all(&[
-                if instance.enable_spend { 1 } else { 0 },
-                if instance.enable_output { 1 } else { 0 },
+                u8::from(instance.enable_spend),
+                u8::from(instance.enable_output),
             ])?;
 
             w.write_all(proof.as_ref())?;