release: bump 0.9.4 -> 0.9.5 (#329 )

Maintenance release. The library API and every indicator are unchanged from `0.9.4`; the only change that ships to users is the R package's build script. ### What's in 0.9.5 - **R package: retry the C ABI download** (`bindings/r/configure[.win]`). A freshly cut release can briefly 404 while assets propagate; the download is now retried with a ~2 min backoff instead of failing with `cannot open URL … 404`. Landed in #328; ships to r-universe / source installs with this release. - The rest of #328 — CI/release-pipeline hardening (R/NuGet dependency caching, job timeouts 20→30 / release 45, network-install retries, wasm-publish cache) — is infrastructure and does not affect the published artifacts, but makes this release's own pipeline more robust. Pure version-string bump on top — `bump_version.py` touched 19 files (Cargo + Lock, pyproject, node package.json/locks + 6 platform stubs, pom + csproj + DESCRIPTION, SECURITY, CHANGELOG `[0.9.5]` + compare URLs). `cargo fmt` clean. Tag/publish waits for explicit GO (irreversible publish to crates.io / PyPI / npm / NuGet / Maven / Go / r-universe).
ci: harden cache, timeouts and retries across CI and release (#328 )
2026-06-17 23:55:18 +02:00 · 2026-06-17 23:42:06 +02:00
23 changed files with 237 additions and 102 deletions
@@ -34,7 +34,7 @@ jobs:
  rust:
    name: Rust ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -105,7 +105,7 @@ jobs:
  examples-smoke:
    name: Examples (syntax smoke)
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -195,7 +195,7 @@ jobs:
  clippy-bindings:
    name: Clippy bindings
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -279,7 +279,7 @@ jobs:
  msrv:
    name: ${{ matrix.name }}
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -328,7 +328,7 @@ jobs:
  coverage:
    name: Coverage
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -370,7 +370,7 @@ jobs:
  supply-chain:
    name: Supply-chain (cargo-deny)
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -389,7 +389,7 @@ jobs:
  fuzz-smoke:
    name: Fuzz (smoke)
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -443,7 +443,7 @@ jobs:
  python:
    name: Python ${{ matrix.python-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -525,7 +525,7 @@ jobs:
  wasm:
    name: WASM build
    runs-on: ubuntu-latest
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
@@ -575,7 +575,7 @@ jobs:
  node:
    name: Node ${{ matrix.node-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -622,9 +622,17 @@ jobs:
          cache: npm
          cache-dependency-path: bindings/node/package-lock.json

+      # npm's own fetch-retry (npm_config_fetch_retries) rides out per-request
+      # blips; wrap the whole `npm ci` once more so a longer registry hiccup
+      # retries the install instead of failing the job.
      - name: Install Node dependencies
-        working-directory: bindings/node
-        run: npm ci
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 10
+          max_attempts: 3
+          retry_wait_seconds: 20
+          command: cd bindings/node && npm ci
+          shell: bash

      - name: Build native module
        working-directory: bindings/node
@@ -649,7 +657,7 @@ jobs:
  c-abi:
    name: C ABI on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -705,7 +713,7 @@ jobs:
  csharp:
    name: C# on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -723,6 +731,19 @@ jobs:
        continue-on-error: true # cache is an optimisation; never block on a stuck/slow restore
        timeout-minutes: 6

+      # Cache the restored NuGet packages so dotnet test/build resolve from the
+      # local store instead of hitting nuget.org every run. No packages.lock.json
+      # exists, so key on the project files; never block the job on a slow restore.
+      - name: Cache NuGet packages
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        continue-on-error: true
+        timeout-minutes: 6
+        with:
+          path: ~/.nuget/packages
+          key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            ${{ runner.os }}-nuget-
+
      # The binding links against the C ABI hub at runtime; build it first so the
      # DllImportResolver finds target/release/wickra.{dll,so,dylib}. .NET 8 SDK is
      # preinstalled on the GitHub runners, so no setup-dotnet step is needed.
@@ -732,8 +753,17 @@ jobs:
      - name: .NET info
        run: dotnet --info

+      # dotnet test restores from nuget.org first; retry so a transient restore
+      # blip retries instead of failing the job (the cached packages above make
+      # the retry cheap).
      - name: Test the C# binding
-        run: dotnet test bindings/csharp/Wickra.Tests/Wickra.Tests.csproj -c Release
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 15
+          max_attempts: 2
+          retry_wait_seconds: 20
+          command: dotnet test bindings/csharp/Wickra.Tests/Wickra.Tests.csproj -c Release
+          shell: bash

      - name: Build the C# examples
        shell: bash
@@ -756,7 +786,7 @@ jobs:
  go:
    name: Go on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -879,7 +909,7 @@ jobs:
  r:
    name: R on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -912,10 +942,17 @@ jobs:
          r-version: "release"
          use-public-rspm: true

-      # Use the repos configured by setup-r (use-public-rspm) so Linux installs
-      # binary packages — building testthat's deps from source is slow and flaky.
-      - name: Install test dependency
-        run: Rscript -e 'install.packages("testthat")'
+      # Install the R dependencies via setup-r-dependencies: it restores a cached
+      # package library (actions/cache) and pulls RSPM *binaries* instead of
+      # compiling testthat / knitr and their deps from source — the slow, flaky
+      # path that previously blew past the job timeout on the ubuntu runner.
+      - name: Install R dependencies (cached binaries)
+        uses: r-lib/actions/setup-r-dependencies@a51a8012b0aab7c32ef9d19bf54da93f3254335e # v2
+        with:
+          working-directory: bindings/r
+          extra-packages: |
+            any::testthat
+            any::knitr

      - name: Install and test the R binding
        shell: bash
@@ -938,8 +975,8 @@ jobs:
        # CRAN (with pandoc); this job only INSTALLs, so execute the vignette's R
        # chunks here (knit, no pandoc needed) to catch a broken example before it
        # reaches the published build.
+        # knitr is installed by the cached setup-r-dependencies step above.
        run: |
-          Rscript -e 'install.packages("knitr", repos = Sys.getenv("RSPM", unset = "https://cloud.r-project.org"))'
          Rscript -e 'knitr::knit("bindings/r/vignettes/getting-started.Rmd", output = tempfile(fileext = ".md"), quiet = TRUE); cat("vignette code OK\n")'

      - name: Run the offline R examples
@@ -961,7 +998,7 @@ jobs:
  java:
    name: Java on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
-    timeout-minutes: 20 # backstop: cap a wedged job instead of GitHub's 6h default (slowest real job ~5 min)
+    timeout-minutes: 30 # backstop: cap a wedged job instead of GitHub's 6h default (headroom for slow registry/package installs)
    strategy:
      fail-fast: false
      matrix:
@@ -1016,8 +1053,16 @@ jobs:

      # `install` runs the archetype test suite (the real FFI boundary check) and
      # installs the binding to the local repo so the examples can resolve it.
+      # Maven resolves plugins/deps from the network on a cache miss; retry so a
+      # transient Central blip retries instead of failing the job.
      - name: Test and install the Java binding
-        run: mvn -B -f bindings/java install
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 20
+          max_attempts: 2
+          retry_wait_seconds: 20
+          command: mvn -B -f bindings/java install
+          shell: bash

      - name: Build the Java examples
        run: mvn -B -f examples/java compile
@@ -36,6 +36,7 @@ jobs:
  # --------------------------------------------------------------------------
  cargo-publish:
    name: Publish to crates.io
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    runs-on: ubuntu-latest
    # The publish jobs run with long-lived registry tokens. Binding them to a
    # protected GitHub environment lets the org require a reviewer to approve
@@ -139,6 +140,7 @@ jobs:
  # --------------------------------------------------------------------------
  python-wheels:
    name: Build wheels (${{ matrix.target }}/${{ matrix.manylinux }} on ${{ matrix.os }})
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    strategy:
      fail-fast: false
      matrix:
@@ -209,6 +211,7 @@ jobs:

  python-sdist:
    name: Build Python sdist
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
@@ -228,6 +231,7 @@ jobs:

  python-publish:
    name: Publish to PyPI
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: [python-wheels, python-sdist]
    runs-on: ubuntu-latest
    environment: release
@@ -251,6 +255,7 @@ jobs:
  # --------------------------------------------------------------------------
  node-build:
    name: Node build (${{ matrix.target }})
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    strategy:
      fail-fast: false
      matrix:
@@ -296,8 +301,13 @@ jobs:
        timeout-minutes: 6

      - name: Install Node deps
-        working-directory: bindings/node
-        run: npm ci
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 10
+          max_attempts: 3
+          retry_wait_seconds: 20
+          command: cd bindings/node && npm ci
+          shell: bash

      - name: Build native module
        working-directory: bindings/node
@@ -312,6 +322,7 @@ jobs:

  node-publish:
    name: Publish to npm
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: node-build
    runs-on: ubuntu-latest
    environment: release
@@ -351,8 +362,13 @@ jobs:
          registry-url: "https://registry.npmjs.org"

      - name: Install Node deps
-        working-directory: bindings/node
-        run: npm ci
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 10
+          max_attempts: 3
+          retry_wait_seconds: 20
+          command: cd bindings/node && npm ci
+          shell: bash

      - name: Download all platform binaries
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
@@ -484,6 +500,7 @@ jobs:
  # which requires the `id-token: write` permission set at the job level.
  wasm-publish:
    name: Publish wickra-wasm to npm
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    runs-on: ubuntu-latest
    environment: release
    # `id-token: write` lets npm publish embed a Sigstore provenance
@@ -523,6 +540,10 @@ jobs:
        with:
          targets: wasm32-unknown-unknown

+      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
+        continue-on-error: true # cache is an optimisation; never block on a stuck/slow restore
+        timeout-minutes: 6
+
      - name: Install wasm-pack (latest, via prebuilt binary)
        # See the matching note in ci.yml: jetli's default installs an old
        # 0.10.x wasm-pack whose build subcommand rejects --features.
@@ -590,6 +611,7 @@ jobs:
  # --------------------------------------------------------------------------
  c-abi-build:
    name: C ABI library (${{ matrix.target }})
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    strategy:
      fail-fast: false
      matrix:
@@ -645,6 +667,7 @@ jobs:
  # workflow release.yml) exchanges the GitHub OIDC token for a short-lived key.
  csharp-publish:
    name: Publish to NuGet
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: c-abi-build
    runs-on: ubuntu-latest
    environment: release
@@ -689,11 +712,18 @@ jobs:
            echo "staged ${RID[$target]}:"; ls -l "$dest"
          done

+      # dotnet pack restores from nuget.org first; retry so a transient restore
+      # blip retries instead of failing the release.
      - name: Pack
-        shell: bash
-        run: |
-          version="${GITHUB_REF_NAME#v}"
-          dotnet pack bindings/csharp/Wickra/Wickra.csproj -c Release -p:Version="$version" -o nupkg
+        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60 # v4.0.0
+        with:
+          timeout_minutes: 15
+          max_attempts: 2
+          retry_wait_seconds: 20
+          shell: bash
+          command: |
+            version="${GITHUB_REF_NAME#v}"
+            dotnet pack bindings/csharp/Wickra/Wickra.csproj -c Release -p:Version="$version" -o nupkg

      # Exchange the GitHub OIDC token for a short-lived (~1h) NuGet API key.
      # 'user' is the nuget.org profile name (the package owner), not an email.
@@ -728,6 +758,7 @@ jobs:
  # match the release tag (kept in sync by the version-bump checklist).
  java-publish:
    name: Publish to Maven Central
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: c-abi-build
    runs-on: ubuntu-latest
    environment: release
@@ -799,6 +830,7 @@ jobs:
  # derived artifact, so its bot commit is intentionally unsigned.
  go-mirror:
    name: Mirror the Go module to wickra-go
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: c-abi-build
    runs-on: ubuntu-latest
    steps:
@@ -882,6 +914,7 @@ jobs:

  github-release:
    name: Attach assets to the draft GitHub Release
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: [cargo-publish, python-publish, node-publish, wasm-publish, c-abi-build]
    runs-on: ubuntu-latest
    permissions:
@@ -1007,6 +1040,7 @@ jobs:
  # --------------------------------------------------------------------------
  attestations:
    name: Attest build provenance
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: [cargo-publish, python-wheels, python-sdist, github-release]
    runs-on: ubuntu-latest
    # Signed SLSA build-provenance attestations for the published crates and
@@ -1090,6 +1124,7 @@ jobs:
  # --------------------------------------------------------------------------
  publish-release:
    name: Publish the GitHub Release
+    timeout-minutes: 45 # backstop only: release build/publish jobs compile from source (vendored OpenSSL) and must not be killed mid-build; far above the ~10 min real runtime
    needs: [github-release, attestations]
    if: always() && needs.github-release.result == 'success'
    runs-on: ubuntu-latest
@@ -7,6 +7,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

 ## [Unreleased]

+## [0.9.5] - 2026-06-17
+
+Maintenance release. The library API and every indicator are unchanged from
+`0.9.4`; the only change that ships to users is to the R package's build script.
+The rest of the release is CI / release-pipeline hardening (dependency caching,
+job timeouts, and network-install retries) that does not affect the artifacts.
+
+### Fixed
+- **R package: retry the C ABI download.** `configure` / `configure.win` fetch the
+  prebuilt `wickra-c-<triple>.tar.gz` from the matching GitHub release. A freshly
+  cut release can briefly return 404 while its assets propagate across the CDN
+  (and a transient network blip would also fail it), so the single-shot download
+  is now retried with a backoff (~2 min) before giving up. Fixes
+  `cannot open URL … 404 Not Found` on r-universe / source installs taken right
+  after a release.
+
+
 ## [0.9.4] - 2026-06-17

 Packaging fix for the `0.9.3` data layer. The library is identical to `0.9.3` on
@@ -1836,7 +1853,8 @@ public API changes.
  optional Binance live feed.
 - Bindings for Python, Node.js, and WebAssembly.

-[Unreleased]: https://github.com/wickra-lib/wickra/compare/v0.9.4...HEAD
+[Unreleased]: https://github.com/wickra-lib/wickra/compare/v0.9.5...HEAD
+[0.9.5]: https://github.com/wickra-lib/wickra/compare/v0.9.4...v0.9.5
 [0.9.4]: https://github.com/wickra-lib/wickra/compare/v0.9.3...v0.9.4
 [0.9.3]: https://github.com/wickra-lib/wickra/compare/v0.9.2...v0.9.3
 [0.9.2]: https://github.com/wickra-lib/wickra/compare/v0.9.1...v0.9.2
@@ -1785,7 +1785,7 @@ dependencies = [

 [[package]]
 name = "wickra"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "approx",
 "criterion",
@@ -1796,7 +1796,7 @@ dependencies = [

 [[package]]
 name = "wickra-bench"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "criterion",
 "kand",
@@ -1808,7 +1808,7 @@ dependencies = [

 [[package]]
 name = "wickra-c"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "tokio",
 "wickra-core",
@@ -1817,7 +1817,7 @@ dependencies = [

 [[package]]
 name = "wickra-core"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "approx",
 "proptest",
@@ -1827,7 +1827,7 @@ dependencies = [

 [[package]]
 name = "wickra-data"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "approx",
 "csv",
@@ -1846,7 +1846,7 @@ dependencies = [

 [[package]]
 name = "wickra-examples"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "serde_json",
 "tokio",
@@ -1856,7 +1856,7 @@ dependencies = [

 [[package]]
 name = "wickra-node"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "napi",
 "napi-build",
@@ -1868,7 +1868,7 @@ dependencies = [

 [[package]]
 name = "wickra-python"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "bytemuck",
 "pyo3",
@@ -1879,7 +1879,7 @@ dependencies = [

 [[package]]
 name = "wickra-wasm"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
 "console_error_panic_hook",
 "js-sys",
@@ -14,7 +14,7 @@ members = [
 exclude = ["fuzz"]

 [workspace.package]
-version = "0.9.4"
+version = "0.9.5"
 authors = ["kingchenc <support@wickra.org>"]
 edition = "2021"
 rust-version = "1.86"
@@ -26,8 +26,8 @@ keywords = ["finance", "trading", "indicators", "technical-analysis", "ta"]
 categories = ["finance", "mathematics", "science"]

 [workspace.dependencies]
-wickra-core = { path = "crates/wickra-core", version = "0.9.4" }
-wickra-data = { path = "crates/wickra-data", version = "0.9.4" }
+wickra-core = { path = "crates/wickra-core", version = "0.9.5" }
+wickra-data = { path = "crates/wickra-data", version = "0.9.5" }

 thiserror = "2"
 rayon = "1.10"
@@ -2,13 +2,13 @@

 ## Supported versions

-Wickra is pre-1.0. Security fixes are applied to the latest released `0.9.4`
+Wickra is pre-1.0. Security fixes are applied to the latest released `0.9.5`
 version only; please upgrade to the newest release before reporting an issue.

 | Version | Supported |
 | --- | --- |
-| 0.9.4 (latest) | :white_check_mark: |
-| < 0.9.4 | :x: |
+| 0.9.5 (latest) | :white_check_mark: |
+| < 0.9.5 | :x: |

 ## Reporting a vulnerability

@@ -11,7 +11,7 @@

    <!-- NuGet package metadata -->
    <PackageId>Wickra</PackageId>
-    <Version>0.9.4</Version>
+    <Version>0.9.5</Version>
    <Authors>kingchenc</Authors>
    <Description>High-performance streaming technical-analysis indicators (514 indicators) for .NET, backed by the native Rust core via the Wickra C ABI.</Description>
    <PackageLicenseExpression>MIT OR Apache-2.0</PackageLicenseExpression>
@@ -30,14 +30,14 @@ Maven:
 <dependency>
  <groupId>org.wickra</groupId>
  <artifactId>wickra</artifactId>
-  <version>0.9.4</version>
+  <version>0.9.5</version>
 </dependency>
 ```

 Gradle:

 ```kotlin
-implementation("org.wickra:wickra:0.9.4")
+implementation("org.wickra:wickra:0.9.5")
 ```

 The native library ships prebuilt per platform (Linux, macOS, Windows — x64 and
@@ -6,7 +6,7 @@

  <groupId>org.wickra</groupId>
  <artifactId>wickra</artifactId>
-  <version>0.9.4</version>
+  <version>0.9.5</version>
  <packaging>jar</packaging>

  <name>Wickra</name>
@@ -1,6 +1,6 @@
 {
  "name": "wickra-darwin-arm64",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (macOS Apple Silicon). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.darwin-arm64.node",
  "files": [
@@ -1,6 +1,6 @@
 {
  "name": "wickra-darwin-x64",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (macOS Intel). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.darwin-x64.node",
  "files": [
@@ -1,6 +1,6 @@
 {
  "name": "wickra-linux-arm64-gnu",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (linux arm64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.linux-arm64-gnu.node",
  "files": [
@@ -1,6 +1,6 @@
 {
  "name": "wickra-linux-x64-gnu",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (linux x64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.linux-x64-gnu.node",
  "files": [
@@ -1,6 +1,6 @@
 {
  "name": "wickra-win32-arm64-msvc",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (Windows arm64 MSVC). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.win32-arm64-msvc.node",
  "files": [
@@ -1,6 +1,6 @@
 {
  "name": "wickra-win32-x64-msvc",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Native binding for wickra (Windows x64 MSVC). Installed automatically as an optional dependency of wickra on matching platforms.",
  "main": "wickra.win32-x64-msvc.node",
  "files": [
@@ -1,12 +1,12 @@
 {
  "name": "wickra",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "wickra",
-      "version": "0.9.4",
+      "version": "0.9.5",
      "license": "MIT OR Apache-2.0",
      "devDependencies": {
        "@napi-rs/cli": "^2.18.0"
@@ -15,12 +15,12 @@
        "node": ">= 20"
      },
      "optionalDependencies": {
-        "wickra-darwin-arm64": "0.9.4",
-        "wickra-darwin-x64": "0.9.4",
-        "wickra-linux-arm64-gnu": "0.9.4",
-        "wickra-linux-x64-gnu": "0.9.4",
-        "wickra-win32-arm64-msvc": "0.9.4",
-        "wickra-win32-x64-msvc": "0.9.4"
+        "wickra-darwin-arm64": "0.9.5",
+        "wickra-darwin-x64": "0.9.5",
+        "wickra-linux-arm64-gnu": "0.9.5",
+        "wickra-linux-x64-gnu": "0.9.5",
+        "wickra-win32-arm64-msvc": "0.9.5",
+        "wickra-win32-x64-msvc": "0.9.5"
      }
    },
    "node_modules/@napi-rs/cli": {
@@ -41,8 +41,8 @@
      }
    },
    "node_modules/wickra-darwin-arm64": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-darwin-arm64/-/wickra-darwin-arm64-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-darwin-arm64/-/wickra-darwin-arm64-0.9.5.tgz",
      "integrity": "sha512-4eZiBR/yGUdr4nzhEUFy2i69XgNx64iI2ax/LPamsThgylC0KpHOZKK19QzJ2d9KbK4C8nMjME5FLuR+4GNEwQ==",
      "cpu": [
        "arm64"
@@ -57,8 +57,8 @@
      }
    },
    "node_modules/wickra-darwin-x64": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-darwin-x64/-/wickra-darwin-x64-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-darwin-x64/-/wickra-darwin-x64-0.9.5.tgz",
      "integrity": "sha512-6hf8zI3QPjTFp4zCpmgUwDvNtu6jHqNUHKD5e55POo0CgA52HkpyxSPtVm8TGTIZDI7kPjlbOdBM8CJ76mmXwA==",
      "cpu": [
        "x64"
@@ -73,8 +73,8 @@
      }
    },
    "node_modules/wickra-linux-arm64-gnu": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-linux-arm64-gnu/-/wickra-linux-arm64-gnu-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-linux-arm64-gnu/-/wickra-linux-arm64-gnu-0.9.5.tgz",
      "integrity": "sha512-kSe6y0xBMSiqdPLXNjwop5WZdHtvdBNKSEBCwZ4hFq33p4apW25/wrlzv9/oDuyD4kuPabJEhCCnFOplh58CUg==",
      "cpu": [
        "arm64"
@@ -89,8 +89,8 @@
      }
    },
    "node_modules/wickra-linux-x64-gnu": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-linux-x64-gnu/-/wickra-linux-x64-gnu-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-linux-x64-gnu/-/wickra-linux-x64-gnu-0.9.5.tgz",
      "integrity": "sha512-tWBWS4qz7hxM4xnpFb59bhf6TaLwXq0Z3jEa/2l7r8PiHA94g8r8S53NRMiT+4yiL5hSWe/nUiC/YXdRrhEZ4g==",
      "cpu": [
        "x64"
@@ -105,8 +105,8 @@
      }
    },
    "node_modules/wickra-win32-arm64-msvc": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-win32-arm64-msvc/-/wickra-win32-arm64-msvc-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-win32-arm64-msvc/-/wickra-win32-arm64-msvc-0.9.5.tgz",
      "integrity": "sha512-EXIckHxAtF75PUGDKRzXyqMe9ldP0JjSdu68WFN6iJfp+McYrGu6h40TEJlQ/oUEIoPqiZB/xhVyo/el5Lg7zw==",
      "cpu": [
        "arm64"
@@ -121,8 +121,8 @@
      }
    },
    "node_modules/wickra-win32-x64-msvc": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/wickra-win32-x64-msvc/-/wickra-win32-x64-msvc-0.9.4.tgz",
+      "version": "0.9.5",
+      "resolved": "https://registry.npmjs.org/wickra-win32-x64-msvc/-/wickra-win32-x64-msvc-0.9.5.tgz",
      "integrity": "sha512-Yfsqq1Xwp6hdxMyLze411vNdo7BDwI6+lPSe7A9XdqyPecNDbtKwYLpsal2r8EHbNzqM+R8XnuRtUaEQS5VlUQ==",
      "cpu": [
        "x64"
@@ -1,6 +1,6 @@
 {
  "name": "wickra",
-  "version": "0.9.4",
+  "version": "0.9.5",
  "description": "Streaming-first technical indicators: incremental, fast, install-free. Node bindings powered by Rust.",
  "author": "kingchenc <support@wickra.org>",
  "main": "index.js",
@@ -47,12 +47,12 @@
    "node": ">= 20"
  },
  "optionalDependencies": {
-    "wickra-linux-x64-gnu": "0.9.4",
-    "wickra-linux-arm64-gnu": "0.9.4",
-    "wickra-darwin-x64": "0.9.4",
-    "wickra-darwin-arm64": "0.9.4",
-    "wickra-win32-x64-msvc": "0.9.4",
-    "wickra-win32-arm64-msvc": "0.9.4"
+    "wickra-linux-x64-gnu": "0.9.5",
+    "wickra-linux-arm64-gnu": "0.9.5",
+    "wickra-darwin-x64": "0.9.5",
+    "wickra-darwin-arm64": "0.9.5",
+    "wickra-win32-x64-msvc": "0.9.5",
+    "wickra-win32-arm64-msvc": "0.9.5"
  },
  "scripts": {
    "build": "napi build --platform --release",
@@ -4,7 +4,7 @@ build-backend = "maturin"

 [project]
 name = "wickra"
-version = "0.9.4"
+version = "0.9.5"
 description = "Streaming-first technical indicators: incremental, fast, install-free."
 readme = "README.md"
 license = "MIT OR Apache-2.0"
@@ -1,7 +1,7 @@
 Package: wickra
 Type: Package
 Title: Streaming-First Technical Indicators
-Version: 0.9.4
+Version: 0.9.5
 Authors@R: person("Wickra contributors", role = c("aut", "cre"), email = "support@wickra.org")
 Description: R bindings for the Wickra technical-analysis library over its C ABI
    hub. Exposes 514 indicators, each an O(1) streaming state machine shared with
@@ -14,6 +14,26 @@ set -e
 inc=""
 lib=""

+# A freshly-cut GitHub release can briefly return 404 while its assets propagate
+# across the CDN, and a transient network blip should not fail the build either.
+# Retry base R's download.file with a backoff (~2 min total) instead of giving up
+# on the first miss.
+wickra_download() {
+  _url="$1"
+  _dest="$2"
+  _attempt=1
+  while [ "${_attempt}" -le 6 ]; do
+    if "${R_HOME}/bin/Rscript" -e "download.file('${_url}', '${_dest}', mode = 'wb', quiet = TRUE)"; then
+      return 0
+    fi
+    echo "wickra: download attempt ${_attempt}/6 failed (${_url}); the release asset may still be propagating — retrying in 20s..."
+    sleep 20
+    _attempt=$((_attempt + 1))
+  done
+  echo "wickra: failed to download ${_url} after 6 attempts"
+  return 1
+}
+
 # WebAssembly (r-universe / webR): there is no prebuilt wasm C ABI to download,
 # but the build image ships cargo (/usr/local/cargo/bin) and emscripten
 # (EMSDK on PATH), so build the C ABI staticlib from source for
@@ -26,8 +46,7 @@ if [ "$(uname -s)" = "Emscripten" ]; then
  echo "wickra: building C ABI from source for wasm32-unknown-emscripten (v${version})"
  build=$(mktemp -d)
  url="https://github.com/wickra-lib/wickra/archive/refs/tags/v${version}.tar.gz"
-  "${R_HOME}/bin/Rscript" -e "download.file('${url}', '${build}/src.tar.gz', mode = 'wb', quiet = TRUE)" \
-    || { echo "wickra: failed to download source ${url}"; exit 1; }
+  wickra_download "${url}" "${build}/src.tar.gz" || exit 1
  "${R_HOME}/bin/Rscript" -e "untar('${build}/src.tar.gz', exdir = '${build}')"
  root="${build}/wickra-${version}"
  rustup target add wasm32-unknown-emscripten 2>/dev/null || true
@@ -73,8 +92,7 @@ else
  esac
  url="https://github.com/wickra-lib/wickra/releases/download/v${version}/wickra-c-${triple}.tar.gz"
  echo "wickra: downloading C ABI ${triple} for v${version}"
-  "${R_HOME}/bin/Rscript" -e "download.file('${url}', 'src/wickra-c.tar.gz', mode = 'wb', quiet = TRUE)" \
-    || { echo "wickra: failed to download ${url}"; exit 1; }
+  wickra_download "${url}" "src/wickra-c.tar.gz" || exit 1
  "${R_HOME}/bin/Rscript" -e "untar('src/wickra-c.tar.gz', exdir = 'src/wickra-c')"
  inc="src/wickra-c/wickra-c-${triple}/include"
  lib="src/wickra-c/wickra-c-${triple}/lib"
@@ -10,6 +10,26 @@
 # WICKRA_LIB_DIR to build against a locally built C ABI instead (dev override).
 set -e

+# A freshly-cut GitHub release can briefly return 404 while its assets propagate
+# across the CDN, and a transient network blip should not fail the build either.
+# Retry base R's download.file with a backoff (~2 min total) instead of giving up
+# on the first miss.
+wickra_download() {
+  _url="$1"
+  _dest="$2"
+  _attempt=1
+  while [ "${_attempt}" -le 6 ]; do
+    if "${R_HOME}/bin/Rscript" -e "download.file('${_url}', '${_dest}', mode = 'wb', quiet = TRUE)"; then
+      return 0
+    fi
+    echo "wickra: download attempt ${_attempt}/6 failed (${_url}); the release asset may still be propagating — retrying in 20s..."
+    sleep 20
+    _attempt=$((_attempt + 1))
+  done
+  echo "wickra: failed to download ${_url} after 6 attempts"
+  return 1
+}
+
 if [ -n "${WICKRA_INCLUDE_DIR}" ] && [ -n "${WICKRA_LIB_DIR}" ]; then
  echo "wickra: using C ABI from WICKRA_INCLUDE_DIR / WICKRA_LIB_DIR (dev override)"
  inc="${WICKRA_INCLUDE_DIR}"
@@ -24,8 +44,7 @@ else
  esac
  url="https://github.com/wickra-lib/wickra/releases/download/v${version}/wickra-c-${triple}.tar.gz"
  echo "wickra: downloading C ABI ${triple} for v${version}"
-  "${R_HOME}/bin/Rscript" -e "download.file('${url}', 'src/wickra-c.tar.gz', mode = 'wb', quiet = TRUE)" \
-    || { echo "wickra: failed to download ${url}"; exit 1; }
+  wickra_download "${url}" "src/wickra-c.tar.gz" || exit 1
  "${R_HOME}/bin/Rscript" -e "untar('src/wickra-c.tar.gz', exdir = 'src/wickra-c')"
  inc="src/wickra-c/wickra-c-${triple}/include"
  lib="src/wickra-c/wickra-c-${triple}/lib"
@@ -6,7 +6,7 @@

  <groupId>org.wickra.examples</groupId>
  <artifactId>wickra-examples</artifactId>
-  <version>0.9.4</version>
+  <version>0.9.5</version>
  <packaging>jar</packaging>

  <name>Wickra Java examples</name>
@@ -21,7 +21,7 @@
    <dependency>
      <groupId>org.wickra</groupId>
      <artifactId>wickra</artifactId>
-      <version>0.9.4</version>
+      <version>0.9.5</version>
    </dependency>
  </dependencies>

@@ -14,7 +14,7 @@
    },
    "../../bindings/node": {
      "name": "wickra",
-      "version": "0.9.4",
+      "version": "0.9.5",
      "license": "MIT OR Apache-2.0",
      "devDependencies": {
        "@napi-rs/cli": "^2.18.0"
@@ -23,12 +23,12 @@
        "node": ">= 20"
      },
      "optionalDependencies": {
-        "wickra-darwin-arm64": "0.9.4",
-        "wickra-darwin-x64": "0.9.4",
-        "wickra-linux-arm64-gnu": "0.9.4",
-        "wickra-linux-x64-gnu": "0.9.4",
-        "wickra-win32-arm64-msvc": "0.9.4",
-        "wickra-win32-x64-msvc": "0.9.4"
+        "wickra-darwin-arm64": "0.9.5",
+        "wickra-darwin-x64": "0.9.5",
+        "wickra-linux-arm64-gnu": "0.9.5",
+        "wickra-linux-x64-gnu": "0.9.5",
+        "wickra-win32-arm64-msvc": "0.9.5",
+        "wickra-win32-x64-msvc": "0.9.5"
      }
    },
    "node_modules/wickra": {