diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..e5d02a8f
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,7 @@
+if has nix; then
+  if ! has nix_direnv_version || ! nix_direnv_version 3.0.6; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.6/direnvrc" "sha256-RYcUJaRMf8oF5LznDrlCXbkOQrywm0HDv1VjYGaJGdM="
+  fi
+fi
+
+source_env_if_exists .envrc.local
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 159d58cd..00000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: CI
-on:
-  push:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-
-      - name: Setup Gradle
-        uses: gradle/gradle-build-action@v2
-
-      - name: Build, Test
-        run: ./gradlew build --info
diff --git a/.github/workflows/ci_linux_windows.yml b/.github/workflows/ci_linux_windows.yml
deleted file mode 100644
index 6b67f328..00000000
--- a/.github/workflows/ci_linux_windows.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: CI (Linux, Windows)
-on:
-  push:
-    branches:
-      - main
-
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  build_all:
-    strategy:
-      matrix:
-        os: [ ubuntu-latest, windows-latest ]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-
-      - name: Setup Gradle
-        uses: gradle/gradle-build-action@v2
-
-      - name: Build, Test
-        run: ./gradlew build --info
diff --git a/.github/workflows/java_versions.yml b/.github/workflows/java_versions.yml
deleted file mode 100644
index 35604b4d..00000000
--- a/.github/workflows/java_versions.yml
+++ /dev/null
@@ -1,30 +0,0 @@
-name: Java versions
-on:
-  push:
-    branches:
-      - main
-
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        java: [ '8', '11', '16' ] # default is 17. See ci.yml
-    name: Java version ${{ matrix.java }}
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: ${{ matrix.java }}
-
-      - name: Setup Gradle
-        uses: gradle/gradle-build-action@v2
-
-      - name: Build, Test
-        run: ./gradlew build --info
diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
deleted file mode 100644
index f6174745..00000000
--- a/.github/workflows/publish-docs.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Documentation
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  javadoc:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v3
-        with:
-          distribution: temurin
-          java-version: 17
-
-      - name: "Setup Gradle"
-        uses: gradle/gradle-build-action@v2
-
-      - name: "Build docs with JavaDoc"
-        run: ./gradlew javadoc --info
-
-      - name: "Publish JavaDoc"
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          GITHUB_TOKEN: ${{ github.token }}
-          publish_dir: 'lib/build/docs/javadoc'
diff --git a/.github/workflows/publish-github-packages.yml b/.github/workflows/publish-github-packages.yml
new file mode 100644
index 00000000..41f2aebe
--- /dev/null
+++ b/.github/workflows/publish-github-packages.yml
@@ -0,0 +1,50 @@
+name: Publish to GitHub Packages
+
+# Manually triggered release of the GrowthBook SDK artifact to our GitHub
+# Packages Maven registry.
+on:
+  workflow_dispatch:
+    inputs:
+      neloBuild:
+        description: 'Nelo re-cut number; version becomes <upstream version>-nelo.<N>'
+        required: true
+        default: '1'
+      version:
+        description: 'Optional full version override; leave blank to derive from the tag'
+        required: false
+        default: ''
+      modules:
+        description: 'Gradle publish tasks to run'
+        required: true
+        default: ':lib:publish'
+        type: choice
+        options:
+          - ':lib:publish'
+          - 'publish'
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      # Use exact JDK versions pinned with nix
+      - uses: DeterminateSystems/nix-installer-action@main
+
+      # The version normally derives from the checked-out tag's gradle.properties plus the
+      # -nelo.<N> suffix the root build.gradle appends, so it always matches the code being
+      # built. `version` is upstream's own project property, so the optional override needs
+      # no patched file; the overlay vendor-qualifies it either way.
+      - name: Publish to GitHub Packages
+        run: |
+          nix develop --command bash -c './gradlew ${{ inputs.modules }} \
+            -PneloBuild="${{ inputs.neloBuild }}" \
+            ${{ inputs.version != '' && format('-Pversion="{0}"', inputs.version) || '' }} \
+            --console=plain --stacktrace'
+        env:
+          GITHUB_ACTOR: ${{ github.actor }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
deleted file mode 100644
index ee90b1b8..00000000
--- a/.github/workflows/release-please.yml
+++ /dev/null
@@ -1,60 +0,0 @@
-name: Release-Please
-
-on:
-  push:
-    branches:
-      - main
-
-permissions:
-  contents: write
-  pull-requests: write
-  packages: write
-  issues: write
-
-jobs:
-  release-please:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: google-github-actions/release-please-action@v3
-        id: release
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          release-type: java-yoshi
-          package-name: com.github.growthbook.growthbook-sdk-java
-          command: manifest
-
-      # The following steps only run if a new release was created
-      - name: Checkout code
-        if: ${{ steps.release.outputs.release_created }}
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - name: Set up JDK 11
-        if: ${{ steps.release.outputs.release_created }}
-        uses: actions/setup-java@v3
-        with:
-          java-version: '11'
-          distribution: 'temurin'
-          cache: gradle
-
-      - name: Build with Gradle
-        if: ${{ steps.release.outputs.release_created }}
-        run: ./gradlew build
-
-      - name: Publish to GitHub Packages
-        if: ${{ steps.release.outputs.release_created }}
-        run: ./gradlew publish
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload Artifacts to GitHub Release
-        if: ${{ steps.release.outputs.release_created }}
-        uses: softprops/action-gh-release@v1
-        with:
-          tag_name: v${{ steps.release.outputs.major }}.${{ steps.release.outputs.minor }}.${{ steps.release.outputs.patch }}
-          files: |
-            lib/build/libs/lib-*.jar
-          generate_release_notes: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index f1f94d25..54b22094 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ build
 bin
 .vscode
 .DS_Store
+
+/.direnv
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 5c87ad8b..8ed0e8b8 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "0.10.10"
+    ".": "0.11.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a433874..7fab006f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,31 @@
 # Changelog
 
+## [0.11.0](https://github.com/growthbook/growthbook-sdk-java/compare/v0.10.10...0.11.0) (2026-08-04)
+
+
+### ⚠ BREAKING CHANGES
+
+* update OkHttp dependencies to version 5.4.0 ([#218](https://github.com/growthbook/growthbook-sdk-java/issues/218))
+
+### Features
+
+* add Caffeine cache adapter module ([#220](https://github.com/growthbook/growthbook-sdk-java/issues/220)) ([bee3e01](https://github.com/growthbook/growthbook-sdk-java/commit/bee3e010ac7b4a2be4c9df59ddbdda9c3470d44d))
+* add configuration validation at client start-up ([#223](https://github.com/growthbook/growthbook-sdk-java/issues/223)) ([f0fb1ae](https://github.com/growthbook/growthbook-sdk-java/commit/f0fb1aecbfdf8f713a39b6e8ca0c44b6f9eda3c2))
+* add custom fields ([#217](https://github.com/growthbook/growthbook-sdk-java/issues/217)) ([06c2b98](https://github.com/growthbook/growthbook-sdk-java/commit/06c2b98b68fd37695efc5ad9bd9fdf870707ff94))
+* add diagnostics API ([#219](https://github.com/growthbook/growthbook-sdk-java/issues/219)) ([32925a6](https://github.com/growthbook/growthbook-sdk-java/commit/32925a6b9140808197424eb2aa26ce73d899ae3b))
+* add JCache (JSR-107) cache adapter module ([#221](https://github.com/growthbook/growthbook-sdk-java/issues/221)) ([621121e](https://github.com/growthbook/growthbook-sdk-java/commit/621121e4d2fc84e2efa11213727601dc3e3cb044))
+* add remote evaluation support ([#216](https://github.com/growthbook/growthbook-sdk-java/issues/216)) ([393fdc8](https://github.com/growthbook/growthbook-sdk-java/commit/393fdc8fd4eec5f346556192fe19ad936905ab7d))
+* Typed feature access ([#224](https://github.com/growthbook/growthbook-sdk-java/issues/224)) ([45c57b4](https://github.com/growthbook/growthbook-sdk-java/commit/45c57b45fec74427c4acbae0e5de296d033e5d50))
+
+
+### Bug Fixes
+
+* apply 200 response payload when x-sse-support header is absent ([#231](https://github.com/growthbook/growthbook-sdk-java/issues/231)) ([e1e3b13](https://github.com/growthbook/growthbook-sdk-java/commit/e1e3b130fcf3abbe87c38c5e594f8f7141325407))
+* correct sticky bucketing logic in single-user and multi-user modes ([#211](https://github.com/growthbook/growthbook-sdk-java/issues/211)) ([1ffd7dc](https://github.com/growthbook/growthbook-sdk-java/commit/1ffd7dc30de0fc5e2e56c80cdb69d9ff746aeda1))
+* handle double forced variation values ([#213](https://github.com/growthbook/growthbook-sdk-java/issues/213)) ([0e5cb83](https://github.com/growthbook/growthbook-sdk-java/commit/0e5cb83fcb1126e7cdf4d6bf5fdf21bb37187a6f))
+* prevent unhandled exceptions when processing empty SSE event payloads ([#214](https://github.com/growthbook/growthbook-sdk-java/issues/214)) ([c509792](https://github.com/growthbook/growthbook-sdk-java/commit/c509792a3492ac443f3685b07de7fcff8dbcbf24))
+* update OkHttp dependencies to version 5.4.0 ([#218](https://github.com/growthbook/growthbook-sdk-java/issues/218)) ([72bb348](https://github.com/growthbook/growthbook-sdk-java/commit/72bb348765dc10cca78710dd1e1e6cd487ad4808))
+
 ## [0.10.10](https://github.com/growthbook/growthbook-sdk-java/compare/v0.10.9...0.10.10) (2026-05-08)
 
 
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 00000000..234bfcc9
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,48 @@
+/*
+ * Nelo fork overlay.
+ *
+ * Upstream has no root build script, so everything fork-specific lives here and every
+ * upstream file — lib/build.gradle, gradle.properties, the cache adapter modules — stays
+ * byte-identical. That keeps syncing with upstream a fast-forward instead of a merge.
+ *
+ * Upstream already declares a `GitHubPackages` publishing repository (and reads
+ * GITHUB_ACTOR / GITHUB_TOKEN from the environment); it just points at its own registry.
+ * We only redirect the URL to ours.
+ *
+ * WHY THIS FORK EXISTS: upstream does not publish com.github.growthbook:lib to Maven
+ * Central, and JitPack 403s in CI. So we rebuild upstream's tagged release unchanged and
+ * republish it to our own GitHub Packages registry, letting api-v2 consume it as a binary
+ * instead of building the SDK from source. No SDK behaviour is forked -- if upstream ever
+ * ships to Maven Central, this repo can be retired.
+ */
+
+// Every artifact we publish is vendor-qualified as <upstream version>-nelo.<N>, so a Nelo
+// rebuild can never be mistaken for -- or collide with -- a genuine upstream release, and
+// we can re-cut the same upstream version (.2, .3) if a build needs redoing. The base
+// version tracks upstream's gradle.properties, so it cannot go stale on the next sync.
+// Re-cut with -PneloBuild=2; an explicit -Pversion=x.y.z-nelo.N is passed through as-is.
+def neloBuild = findProperty('neloBuild') ?: '1'
+
+gradle.beforeProject { p ->
+    def v = p.version.toString()
+    if (v != 'unspecified' && !v.contains('-nelo.')) {
+        p.version = "${v}-nelo.${neloBuild}"
+    }
+}
+
+subprojects {
+    // Upstream's gradle.properties sets `group=com.github.growthbook ` with a trailing
+    // space. lib/build.gradle reassigns the group so it escapes, but the cache adapter
+    // modules inherit it and Gradle rejects the publication outright:
+    //   "groupId (com.github.growthbook ) is not a valid Maven identifier".
+    // Trim it here so `./gradlew publish` works for every module.
+    group = group.toString().trim()
+
+    plugins.withId('maven-publish') {
+        publishing.repositories.withType(MavenArtifactRepository).all { repo ->
+            if (repo.name == 'GitHubPackages') {
+                repo.url = uri('https://maven.pkg.github.com/nelo/growthbook-sdk-java')
+            }
+        }
+    }
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 00000000..51ef7239
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,59 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1781577229,
+        "narHash": "sha256-lrp67w8AulE9Ks53n27I45ADSzbOCn4H+CNW1Ck8B+8=",
+        "rev": "567a49d1913ce81ac6e9582e3553dd90a955875f",
+        "revCount": 1017464,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/DeterminateSystems/nixpkgs-weekly/0.1.1017464%2Brev-567a49d1913ce81ac6e9582e3553dd90a955875f/019f1749-32d6-7283-9e9a-861bd8478e6a/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/DeterminateSystems/nixpkgs-weekly/0.1.995785.tar.gz"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 00000000..a81a8ec2
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,33 @@
+{
+  description = "Nelo fork of growthbook-sdk-java — build & publish the upstream artifact on JDK 17";
+
+  inputs = {
+    /**
+      Prefer DeterminateSystem's nixpkgs-weekly flake over nixpkgs-unstable.
+      This lagging flake is bumped weekly to reduce the likelihood an update is breaking.
+      As such it also provides a significantly better cache-hit rate.
+    */
+    nixpkgs.url = "https://flakehub.com/f/DeterminateSystems/nixpkgs-weekly/0.1.995785.tar.gz";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs =
+    { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          # This SDK builds with its bundled Gradle 7.5.1 wrapper, which only runs on
+          # JDK <= 18. JDK 17 is the LTS in that range. The resulting Java-8 bytecode
+          # runs fine on the JDK 25 API service that consumes this artifact.
+          packages = [ pkgs.jdk17 ];
+          shellHook = ''
+            export JAVA_HOME="${pkgs.jdk17.home}"
+          '';
+        };
+      }
+    );
+}
diff --git a/gradle.properties b/gradle.properties
index 1b822858..1b826c19 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
 # x-release-please-start-version
-version=0.10.11-SNAPSHOT
+version=0.11.0
 # x-release-please-end
 group=com.github.growthbook 
\ No newline at end of file
diff --git a/lib/src/main/java/growthbook/sdk/java/Version.java b/lib/src/main/java/growthbook/sdk/java/Version.java
index 2e67b334..6d6595b0 100644
--- a/lib/src/main/java/growthbook/sdk/java/Version.java
+++ b/lib/src/main/java/growthbook/sdk/java/Version.java
@@ -8,6 +8,6 @@
 public class Version {
     // The current version of the GrowthBook SDK for Java
     // x-release-please-start-version
-    public static final String SDK_VERSION = "0.10.11-SNAPSHOT";
+    public static final String SDK_VERSION = "0.11.0";
     // x-release-please-end
 }
diff --git a/versions.txt b/versions.txt
index dda3859f..f85eb944 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,3 +1,3 @@
 # Format:
 # module:released-version:current-version
-growthbook-sdk-java:0.10.10:0.10.11-SNAPSHOT
\ No newline at end of file
+growthbook-sdk-java:0.11.0:0.11.0
\ No newline at end of file