sequentech · Findeton · Jul 21, 2026 · Jul 23, 2026
diff --git a/.github/workflows/lint_prettify.yml b/.github/workflows/lint_prettify.yml
@@ -87,7 +87,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly
+          toolchain: 1.96.0
           components: rustfmt
           override: true
 

diff --git a/.github/workflows/step_cli_build.yml b/.github/workflows/step_cli_build.yml
@@ -31,7 +31,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly
+          toolchain: 1.96.0
           components: rustfmt
           override: true
           target: x86_64-unknown-linux-musl

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -36,7 +36,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2024-08-02
+          toolchain: 1.96.0
           components: rustfmt
           override: true
 

diff --git a/devenv.nix b/devenv.nix
@@ -1,5 +1,18 @@
 { pkgs, ... }:
 
+let
+  rustOverlay = import (builtins.fetchTarball {
+    url = "https://github.com/oxalica/rust-overlay/archive/107c334f141854f563f8adf1db781dc453d92639.tar.gz";
+    sha256 = "138jwq564qji7dc5yav2j2c1c1mr65smqqk00mni9lvqhx0n45w4";
+  });
+
+  pkgs' = pkgs.extend rustOverlay;
+
+  rustStable = pkgs'.rust-bin.stable."1.96.0".default.override {
+    targets = [ "wasm32-unknown-unknown" "wasm32-wasip1" "wasm32-wasip2" ];
+    extensions = [ "rust-src" "rust-analyzer-preview" ];
+  };
+in
 {
   # https://devenv.sh/basics/
   env = {
@@ -16,6 +29,9 @@
 
   # https://devenv.sh/packages/
   packages = with pkgs; [
+    # Binary Rust
+    rustStable
+
     # AWS
     (aws-sam-cli.overridePythonAttrs { doCheck = false; })
 
@@ -83,15 +99,9 @@
     export LD_LIBRARY_PATH=${pkgs.openssl.out}/lib:$LD_LIBRARY_PATH
     export PATH=/workspaces/step/packages/step-cli/rust-local-target/release:$PATH
     set +a
-  '';
 
-  # https://devenv.sh/languages/
-  languages.rust = {
-    enable = true;
-    # https://devenv.sh/reference/options/#languagesrustchannel
-    channel = "nightly";
-    toolchain.rust-src = pkgs.rustPlatform.rustLibSrc;
-  };
+    export RUST_SRC_PATH=${rustStable}/lib/rustlib/src/rust/library
+  '';
 
   languages.java = {
     enable = true;

diff --git a/packages/Dockerfile.cargo-packages b/packages/Dockerfile.cargo-packages
@@ -7,7 +7,7 @@
 # for example packages/windmill/Dockerfile, packages/harvest/Dockerfile, etc.
 
 
-FROM rustlang/rust:nightly-bookworm-slim
+FROM rust:1.96.0-slim-bookworm
 
 WORKDIR /app
 

diff --git a/packages/Dockerfile.immudb-init-vstl-dependencies b/packages/Dockerfile.immudb-init-vstl-dependencies
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0-slim-bookworm
+FROM rust:1.96.0-slim-bookworm
 
 WORKDIR /app
 
@@ -13,9 +13,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     make \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 # copy projects
 #TODO: Copy only necessary files
 WORKDIR /app

diff --git a/packages/Dockerfile.immudb-init.prod b/packages/Dockerfile.immudb-init.prod
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only 
 
-FROM rust:1.90.0-slim-bookworm as builder
+FROM rust:1.96.0-slim-bookworm as builder
 
 WORKDIR /app
 

diff --git a/packages/b3/Dockerfile.prod b/packages/b3/Dockerfile.prod
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rustlang/rust:nightly-bookworm-slim as builder
+FROM rust:1.96.0-slim-bookworm as builder
 
 WORKDIR /app
 
@@ -13,9 +13,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     make \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 # copy projects
 #TODO: Copy only necessary files
 WORKDIR /app

diff --git a/packages/b3/Dockerfile.prod-vstl-dependencies b/packages/b3/Dockerfile.prod-vstl-dependencies
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0-slim-bookworm
+FROM rust:1.96.0-slim-bookworm
 
 WORKDIR /app
 
@@ -16,9 +16,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libssl-dev \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 #TODO: Copy only necessary files
 COPY ./braid/Cargo.toml ./braid/Cargo.toml
 COPY ./b3/Cargo.toml ./b3/Cargo.toml

diff --git a/packages/braid/Dockerfile b/packages/braid/Dockerfile
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rustlang/rust:nightly-bookworm-slim
+FROM rust:1.96.0-slim-bookworm
 
 # Copy projects
 WORKDIR /app
@@ -25,10 +25,6 @@ RUN apt-get update \
         curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Install the specific nightly toolchain
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 ARG VAULT_VERSION=1.15.5
 
 # Install vault

diff --git a/packages/braid/Dockerfile.prod b/packages/braid/Dockerfile.prod
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rustlang/rust:nightly-bookworm-slim as builder
+FROM rust:1.96.0-slim-bookworm as builder
 
 WORKDIR /app
 
@@ -18,9 +18,6 @@ RUN apt-get update \
         curl \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 # copy projects
 #TODO: Copy only necessary files
 WORKDIR /app

diff --git a/packages/braid/Dockerfile.prod-vstl-dependencies b/packages/braid/Dockerfile.prod-vstl-dependencies
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rustlang/rust:nightly-bookworm-slim as builder
+FROM rust:1.96.0-slim-bookworm as builder
 
 WORKDIR /app
 
@@ -13,9 +13,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     make \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 # copy projects
 #TODO: Copy only necessary files
 WORKDIR /app

diff --git a/packages/e2e/src/mock_server/Dockerfile.prod b/packages/e2e/src/mock_server/Dockerfile.prod
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0-slim-bookworm AS builder
+FROM rust:1.96.0-slim-bookworm AS builder
 
 WORKDIR /app
 
@@ -16,9 +16,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libssl-dev \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 #TODO: Copy only necessary files
 COPY ./ ./
 

diff --git a/packages/harvest/Dockerfile b/packages/harvest/Dockerfile
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0
+FROM rust:1.96.0-slim-bookworm
 
 ENV ROCKET_ADDRESS=0.0.0.0
 ENV ROCKET_PORT=8400
@@ -19,7 +19,6 @@ COPY ./wrap-map-err ./wrap-map-err
 COPY ./velvet ./velvet
 
 RUN apt-get update && apt-get install -y chromium protobuf-compiler libprotobuf-dev
-RUN rustup default nightly
 
 WORKDIR /app/harvest
 RUN cargo build

diff --git a/packages/harvest/Dockerfile.prod b/packages/harvest/Dockerfile.prod
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0-slim-bookworm as builder
+FROM rust:1.96.0-slim-bookworm as builder
 
 WORKDIR /app
 
@@ -16,9 +16,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libssl-dev \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 #TODO: Copy only necessary files
 COPY ./braid ./braid
 COPY ./b3 ./b3

diff --git a/packages/harvest/Dockerfile.prod-vstl-dependencies b/packages/harvest/Dockerfile.prod-vstl-dependencies
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-only
 
-FROM rust:1.82.0-slim-bookworm
+FROM rust:1.96.0-slim-bookworm
 
 WORKDIR /app
 
@@ -16,9 +16,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libssl-dev \
     && rm -rf /var/lib/apt/lists/*
 
-RUN rustup toolchain install nightly-2024-09-01 \
-    && rustup default nightly-2024-09-01
-
 #TODO: Copy only necessary files
 COPY ./braid/Cargo.toml ./braid/Cargo.toml
 COPY ./b3/Cargo.toml ./b3/Cargo.toml

diff --git a/packages/orare/doc_renderer/Dockerfile b/packages/orare/doc_renderer/Dockerfile
@@ -12,7 +12,7 @@ ARG AWS_S3_MAX_UPLOAD_BYTES=""
 ARG AWS_S3_UPLOAD_EXPIRATION_SECS=""
 ARG AWS_S3_FETCH_EXPIRATION_SECS=""
 
-FROM rustlang/rust:nightly AS builder
+FROM rust:1.96.0-slim-bookworm AS builder
 ARG FEATURES
 
 RUN apt-get update && \

diff --git a/packages/sequent-core/src/ballot_codec/raw_ballot.rs b/packages/sequent-core/src/ballot_codec/raw_ballot.rs
@@ -55,9 +55,16 @@ impl RawBallotCodec for Contest {
         let base_bits = (char_map.base() as f64).log2().ceil() as i32;
 
         if remaining_bits > 0 {
-            Ok(remaining_bits.div_ceil(base_bits))
+            // div_ceil: round up for positive numbers
+            Ok((remaining_bits as u32).div_ceil(base_bits as u32) as i32)
         } else {
-            Ok(remaining_bits.div_floor(base_bits))
+            // div_floor: round toward negative infinity for negative numbers
+            Ok((remaining_bits / base_bits)
+                - if remaining_bits % base_bits != 0 {
+                    1
+                } else {
+                    0
+                })
         }
     }
 

diff --git a/packages/sequent-core/src/lib.rs b/packages/sequent-core/src/lib.rs
@@ -1,7 +1,6 @@
 // SPDX-FileCopyrightText: 2022 Felix Robles <felix@sequentech.io>
 //
 // SPDX-License-Identifier: AGPL-3.0-only
-#![feature(int_roundings)]
 #[macro_use]
 extern crate quick_error;
 extern crate cfg_if;

diff --git a/packages/ui-core/src/index.tsx b/packages/ui-core/src/index.tsx
@@ -2,7 +2,7 @@
 //
 // SPDX-License-Identifier: AGPL-3.0-only

 import React from "react"

 export {
    default as i18n,
@@ -25,7 +25,11 @@
 export {downloadBlob, downloadUrl} from "./services/downloadBlob"
 export {shuffle, splitList, keyBy} from "./utils/array"
 export {normalizeWriteInText} from "./services/normalizeWriteInText"
-export {translate, translateFromPresentation} from "./services/translate"
+export {
+    isTranslatablePresentation,
+    translate,
+    translateFromPresentation,
+} from "./services/translate"
 export * from "./types/ElectionEventPresentation"
 export * from "./services/percentFormatter"
 export * from "./services/wasm"