diff --git a/CHANGELOG.md b/CHANGELOG.md
index c14d3dc..b674c8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,26 @@ stability commitment. See [ROADMAP.md](ROADMAP.md) for planned milestones.
 
 ## [Unreleased]
 
+## [0.14.2] — 2026-10-08
+
+Patch release: `admina-core` builds with Rust 1.85 again, and the proxy
+image is published. The code of the framework is unchanged from 0.14.1.
+
+### Fixed
+
+- The Luhn check of the Rust PII scanner (`admina-core`) used
+  `is_multiple_of`, stable since Rust 1.87. The proxy image builds
+  `admina-core` with the rustc of Debian (1.85), so the image of 0.14.1
+  was not built: `ghcr.io/admina-org/admina-proxy` has no 0.14.1 tag, and
+  its `latest` stayed on 0.14.0. The check uses `%` again. The PyPI
+  wheels of 0.14.1, built with a newer Rust, are not affected.
+
+### Changed
+
+- `core-rust/Cargo.toml` declares `rust-version = "1.85"`; clippy, which CI
+  runs with `-D warnings`, reports the standard-library APIs that are
+  newer.
+
 ## [0.14.1] — 2026-10-08
 
 Patch release: fewer PII false positives on numbers, codes and non-English
@@ -2312,7 +2332,8 @@ environment in `docker-compose.benchmark.yml`.
 
 ---
 
-[Unreleased]: https://github.com/admina-org/admina/compare/v0.14.1...HEAD
+[Unreleased]: https://github.com/admina-org/admina/compare/v0.14.2...HEAD
+[0.14.2]: https://github.com/admina-org/admina/compare/v0.14.1...v0.14.2
 [0.14.1]: https://github.com/admina-org/admina/compare/v0.14.0...v0.14.1
 [0.14.0]: https://github.com/admina-org/admina/compare/v0.13.2...v0.14.0
 [0.13.2]: https://github.com/admina-org/admina/compare/v0.13.1...v0.13.2
diff --git a/ROADMAP.md b/ROADMAP.md
index 7a91144..443e344 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -6,7 +6,7 @@ not on a calendar. Scope may shift in response to user feedback, security
 findings, or upstream changes in the governance landscape (EU AI Act
 implementing acts, new frameworks, new attack classes).
 
-The current release is **0.14.1**. Admina is pre-1.0: the public API may
+The current release is **0.14.2**. Admina is pre-1.0: the public API may
 still evolve before the 1.0 stability commitment, so a minor release may
 carry a declared breaking change once its replacement is in place. Shipped
 detail lives in [CHANGELOG.md](CHANGELOG.md).
diff --git a/admina/__init__.py b/admina/__init__.py
index e97fd70..5942198 100644
--- a/admina/__init__.py
+++ b/admina/__init__.py
@@ -23,7 +23,7 @@
 
 from admina.sdk import ComplianceKit, GovernedAgent, GovernedData, GovernedModel
 
-__version__ = "0.14.1"
+__version__ = "0.14.2"
 
 __all__ = [
     "__version__",
diff --git a/core-rust/Cargo.lock b/core-rust/Cargo.lock
index 8510fe0..f70d9d9 100644
--- a/core-rust/Cargo.lock
+++ b/core-rust/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "admina_core"
-version = "0.14.1"
+version = "0.14.2"
 dependencies = [
  "chrono",
  "hex",
diff --git a/core-rust/Cargo.toml b/core-rust/Cargo.toml
index f01d726..7c747ec 100644
--- a/core-rust/Cargo.toml
+++ b/core-rust/Cargo.toml
@@ -15,8 +15,11 @@
 
 [package]
 name = "admina_core"
-version = "0.14.1"
+version = "0.14.2"
 edition = "2021"
+# The rustc of Debian, with which the proxy image builds the crate; clippy
+# reports the standard-library APIs that are newer (incompatible_msrv).
+rust-version = "1.85"
 description = "Admina governance engines — Rust core with Python bindings"
 license = "Apache-2.0"
 
diff --git a/core-rust/pyproject.toml b/core-rust/pyproject.toml
index a1502d4..79c490a 100644
--- a/core-rust/pyproject.toml
+++ b/core-rust/pyproject.toml
@@ -19,7 +19,7 @@ build-backend = "maturin"
 
 [project]
 name = "admina-core"
-version = "0.14.1"
+version = "0.14.2"
 description = "Admina governance engines — Rust core with Python bindings (firewall, PII, loop breaker, hash chain)"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/core-rust/src/pii.rs b/core-rust/src/pii.rs
index 9c0c5f8..45a1787 100644
--- a/core-rust/src/pii.rs
+++ b/core-rust/src/pii.rs
@@ -38,7 +38,7 @@ fn luhn_valid(_text: &str, caps: &Captures) -> bool {
         .rev()
         .enumerate()
         .map(|(i, &d)| {
-            if !i.is_multiple_of(2) {
+            if i % 2 == 1 {
                 let x = d * 2;
                 if x > 9 {
                     x - 9
@@ -50,7 +50,7 @@ fn luhn_valid(_text: &str, caps: &Captures) -> bool {
             }
         })
         .sum();
-    !digits.is_empty() && sum.is_multiple_of(10)
+    !digits.is_empty() && sum % 10 == 0
 }
 
 fn is_word(c: char) -> bool {
diff --git a/core-rust/uv.lock b/core-rust/uv.lock
index 7da6a84..8fde676 100644
--- a/core-rust/uv.lock
+++ b/core-rust/uv.lock
@@ -4,5 +4,5 @@ requires-python = ">=3.11"
 
 [[package]]
 name = "admina-core"
-version = "0.14.1"
+version = "0.14.2"
 source = { editable = "." }
diff --git a/pyproject.toml b/pyproject.toml
index 10d6388..4506616 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "admina"
-version = "0.14.1"
+version = "0.14.2"
 description = "Admina — governed AI development framework"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/uv.lock b/uv.lock
index 0d190fb..da35ef1 100644
--- a/uv.lock
+++ b/uv.lock
@@ -10,7 +10,7 @@ resolution-markers = [
 
 [[package]]
 name = "admina"
-version = "0.14.1"
+version = "0.14.2"
 source = { editable = "." }
 dependencies = [
     { name = "click" },
@@ -199,7 +199,7 @@ dev = [
 
 [[package]]
 name = "admina-core"
-version = "0.14.1"
+version = "0.14.2"
 source = { directory = "core-rust" }
 
 [[package]]