diff --git a/.eslintrc.js b/.eslintrc.js
index 5f6d01889..bb50a6f60 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -15,7 +15,7 @@ module.exports = {
     'import/no-extraneous-dependencies': [
       'error',
       {
-        devDependencies: ['**/jest*.ts', '**/*.test.ts'],
+        devDependencies: ['**/jest*.ts', '**/*.test.ts', '**/rollup.config.ts'],
       },
     ],
   },
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 06d9f6673..0d6fd22c8 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,13 +1,13 @@
 {
   "packages/shared/common": "1.1.0",
-  "packages/shared/sdk-server": "1.2.2",
-  "packages/sdk/server-node": "8.2.3",
-  "packages/sdk/cloudflare": "2.1.3",
-  "packages/shared/sdk-server-edge": "1.0.12",
-  "packages/sdk/vercel": "1.1.3",
-  "packages/sdk/akamai-base": "1.0.6",
-  "packages/sdk/akamai-edgekv": "1.0.6",
-  "packages/shared/akamai-edgeworker-sdk": "0.3.3",
-  "packages/store/node-server-sdk-dynamodb": "5.0.10",
-  "packages/store/node-server-sdk-redis": "3.0.10"
+  "packages/shared/sdk-server": "1.2.3",
+  "packages/sdk/server-node": "8.2.4",
+  "packages/sdk/cloudflare": "2.2.0",
+  "packages/shared/sdk-server-edge": "1.0.13",
+  "packages/sdk/vercel": "1.1.4",
+  "packages/sdk/akamai-base": "1.0.7",
+  "packages/sdk/akamai-edgekv": "1.0.7",
+  "packages/shared/akamai-edgeworker-sdk": "0.3.4",
+  "packages/store/node-server-sdk-dynamodb": "5.0.11",
+  "packages/store/node-server-sdk-redis": "3.0.11"
 }
diff --git a/packages/sdk/akamai-base/CHANGELOG.md b/packages/sdk/akamai-base/CHANGELOG.md
index d8da8f053..1858b2e2a 100644
--- a/packages/sdk/akamai-base/CHANGELOG.md
+++ b/packages/sdk/akamai-base/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 All notable changes to the LaunchDarkly SDK for Akamai Workers will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org).
 
+## [1.0.7](https://github.com/launchdarkly/js-core/compare/akamai-server-base-sdk-v1.0.6...akamai-server-base-sdk-v1.0.7)  (2023-09-06)
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/akamai-edgeworker-sdk-common bumped from ^0.3.3 to ^0.3.4
+    * @launchdarkly/js-server-sdk-common bumped from ^1.2.2 to ^1.2.3
+
 ### Dependencies
 
 * The following workspace dependencies were updated
diff --git a/packages/sdk/akamai-base/package.json b/packages/sdk/akamai-base/package.json
index 09f511b90..b981824eb 100644
--- a/packages/sdk/akamai-base/package.json
+++ b/packages/sdk/akamai-base/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/akamai-server-base-sdk",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "Akamai LaunchDarkly EdgeWorker SDK",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/akamai-base",
   "repository": {
@@ -72,7 +72,7 @@
     "typescript": "5.1.6"
   },
   "dependencies": {
-    "@launchdarkly/akamai-edgeworker-sdk-common": "^0.3.3",
-    "@launchdarkly/js-server-sdk-common": "^1.2.2"
+    "@launchdarkly/akamai-edgeworker-sdk-common": "^0.3.4",
+    "@launchdarkly/js-server-sdk-common": "^1.2.3"
   }
 }
diff --git a/packages/sdk/akamai-edgekv/CHANGELOG.md b/packages/sdk/akamai-edgekv/CHANGELOG.md
index 41cb0d110..6033ee4fe 100644
--- a/packages/sdk/akamai-edgekv/CHANGELOG.md
+++ b/packages/sdk/akamai-edgekv/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 All notable changes to the LaunchDarkly SDK for Akamai Workers will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org).
 
+## [1.0.7](https://github.com/launchdarkly/js-core/compare/akamai-server-edgekv-sdk-v1.0.6...akamai-server-edgekv-sdk-v1.0.7)  (2023-08-14)
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/akamai-edgeworker-sdk-common bumped from ^0.3.3 to ^0.3.4
+    * @launchdarkly/js-server-sdk-common bumped from ^1.2.2 to ^1.2.3
+
 ### Dependencies
 
 * The following workspace dependencies were updated
diff --git a/packages/sdk/akamai-edgekv/package.json b/packages/sdk/akamai-edgekv/package.json
index 1b177e24d..fe2f3400d 100644
--- a/packages/sdk/akamai-edgekv/package.json
+++ b/packages/sdk/akamai-edgekv/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/akamai-server-edgekv-sdk",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "Akamai LaunchDarkly EdgeWorker SDK for EdgeKV feature store",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/akamai-edgekv",
   "repository": {
@@ -72,7 +72,7 @@
     "typescript": "5.1.6"
   },
   "dependencies": {
-    "@launchdarkly/akamai-edgeworker-sdk-common": "^0.3.3",
-    "@launchdarkly/js-server-sdk-common": "^1.2.2"
+    "@launchdarkly/akamai-edgeworker-sdk-common": "^0.3.4",
+    "@launchdarkly/js-server-sdk-common": "^1.2.3"
   }
 }
diff --git a/packages/sdk/cloudflare/CHANGELOG.md b/packages/sdk/cloudflare/CHANGELOG.md
index c3e5f7cce..4334581e2 100644
--- a/packages/sdk/cloudflare/CHANGELOG.md
+++ b/packages/sdk/cloudflare/CHANGELOG.md
@@ -2,6 +2,25 @@
 
 All notable changes to the LaunchDarkly SDK for Cloudflare Workers will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org).
 
+## [2.2.0](https://github.com/launchdarkly/js-core/compare/cloudflare-server-sdk-v2.1.4...cloudflare-server-sdk-v2.2.0) (2023-09-21)
+
+
+### Features
+
+* rollup cloudflare sdk ([#279](https://github.com/launchdarkly/js-core/issues/279)) ([7af4f6e](https://github.com/launchdarkly/js-core/commit/7af4f6e2d029b87396087d96904cdfa7d39a8cb3))
+
+## [2.1.4](https://github.com/launchdarkly/js-core/compare/cloudflare-server-sdk-v2.1.3...cloudflare-server-sdk-v2.1.4) (2023-09-06)
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/js-server-sdk-common-edge bumped from 1.0.12 to 1.0.13
+
 ### Dependencies
 
 * The following workspace dependencies were updated
@@ -14,6 +33,7 @@ All notable changes to the LaunchDarkly SDK for Cloudflare Workers will be docum
   * dependencies
     * @launchdarkly/js-server-sdk-common-edge bumped from 1.0.11 to 1.0.12
 
+
 ## [2.1.1](https://github.com/launchdarkly/js-core/compare/cloudflare-server-sdk-v2.1.0...cloudflare-server-sdk-v2.1.1) (2023-08-14)
 
 Updated common dependency includes performance improvements.
diff --git a/packages/sdk/cloudflare/example/package.json b/packages/sdk/cloudflare/example/package.json
index 5b9cc8711..25ab3aa7c 100644
--- a/packages/sdk/cloudflare/example/package.json
+++ b/packages/sdk/cloudflare/example/package.json
@@ -5,7 +5,7 @@
   "module": "./dist/index.mjs",
   "packageManager": "yarn@3.4.1",
   "dependencies": {
-    "@launchdarkly/cloudflare-server-sdk": "^2.0.2"
+    "@launchdarkly/cloudflare-server-sdk": "^2.1.4"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^4.20230321.0",
@@ -17,14 +17,13 @@
     "prettier": "^2.6.2",
     "ts-jest": "^28.0.3",
     "typescript": "5.1.6",
-    "wrangler": "2.13.0"
+    "wrangler": "2.20.1"
   },
   "scripts": {
-    "build": "yarn && yarn link-dev && node build.js",
+    "build": "node build.js",
     "start": "wrangler dev",
     "deploy": "wrangler publish",
-    "test": "yarn build && node --experimental-vm-modules --no-warnings node_modules/jest/bin/jest.js",
-    "clean": "rm -rf dist && rm -rf node_modules && rm -rf .yarn/cache && yarn build",
-    "link-dev": "cd ../../../../ && yarn link-dev"
+    "test": "yarn build && jest",
+    "clean": "rm -rf dist && rm -rf node_modules && rm -rf .yarn/cache && yarn build"
   }
 }
diff --git a/packages/sdk/cloudflare/example/src/index.test.ts b/packages/sdk/cloudflare/example/src/index.test.ts
index 2c11ecb3c..0ada18236 100644
--- a/packages/sdk/cloudflare/example/src/index.test.ts
+++ b/packages/sdk/cloudflare/example/src/index.test.ts
@@ -1,15 +1,22 @@
 import app from './index';
 import testData from './testData.json';
 
-test('variation true', async () => {
-  // arrange
-  const env = getMiniflareBindings();
-  const { LD_KV } = env;
-  await LD_KV.put('LD-Env-test-sdk-key', JSON.stringify(testData));
+describe('test', () => {
+  let env: Bindings;
 
-  // act
-  const res = await app.fetch(new Request('http://localhost'), env);
+  beforeEach(async () => {
+    env = getMiniflareBindings();
+    const { LD_KV } = env;
+    await LD_KV.put('LD-Env-test-sdk-key', JSON.stringify(testData));
+  });
 
-  // assert
-  expect(await res.text()).toContain('testFlag1: true');
+  test('variation true', async () => {
+    const res = await app.fetch(new Request('http://localhost/?email=truemail'), env);
+    expect(await res.text()).toContain('testFlag1: true');
+  });
+
+  test('variation false', async () => {
+    const res = await app.fetch(new Request('http://localhost/?email=falsemail'), env);
+    expect(await res.text()).toContain('testFlag1: false');
+  });
 });
diff --git a/packages/sdk/cloudflare/example/src/index.ts b/packages/sdk/cloudflare/example/src/index.ts
index 9f66c82f2..49a459a06 100644
--- a/packages/sdk/cloudflare/example/src/index.ts
+++ b/packages/sdk/cloudflare/example/src/index.ts
@@ -11,7 +11,11 @@ const handler: ExportedHandler<Bindings> = {
   ): Promise<Response> {
     const clientSideID = 'client-side-id';
     const flagKey = 'testFlag1';
-    const context = { kind: 'org', key: 'org-key-cf', email: 'testcforg@gmail.com' };
+    const { searchParams } = new URL(request.url);
+
+    // falsemail will return false, other emails return true
+    const email = searchParams.get('email') ?? 'test@anymail.com';
+    const context = { kind: 'user', key: 'test-user-key-1', email };
 
     // start using ld
     const client = initLD(clientSideID, env.LD_KV, { sendEvents: true });
diff --git a/packages/sdk/cloudflare/example/src/testData.json b/packages/sdk/cloudflare/example/src/testData.json
index 495819a24..d4fbacd7b 100644
--- a/packages/sdk/cloudflare/example/src/testData.json
+++ b/packages/sdk/cloudflare/example/src/testData.json
@@ -14,7 +14,7 @@
               "contextKind": "user",
               "attribute": "/email",
               "op": "contains",
-              "values": ["gmail"],
+              "values": ["falsemail"],
               "negate": false
             }
           ],
diff --git a/packages/sdk/cloudflare/package.json b/packages/sdk/cloudflare/package.json
index 705375ba4..c4726958d 100644
--- a/packages/sdk/cloudflare/package.json
+++ b/packages/sdk/cloudflare/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/cloudflare-server-sdk",
-  "version": "2.1.3",
+  "version": "2.2.0",
   "description": "Cloudflare LaunchDarkly SDK",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/cloudflare",
   "repository": {
@@ -17,34 +17,43 @@
   ],
   "type": "module",
   "exports": {
-    "require": "./dist/cjs/src/index.js",
-    "import": "./dist/esm/src/index.js"
+    "types": "./dist/index.d.ts",
+    "import": "./dist/esm/index.js",
+    "require": "./dist/cjs/index.js"
   },
-  "main": "./dist/cjs/src/index.js",
-  "types": "./dist/cjs/src/index.d.ts",
+  "main": "./dist/cjs/index.js",
+  "types": "./dist/index.d.ts",
   "files": [
     "dist"
   ],
   "scripts": {
-    "build": "../../../scripts/build-package.sh",
     "clean": "rimraf dist",
+    "rb": "rollup -c --configPlugin typescript",
+    "rbw": "yarn rb --watch",
+    "build": "yarn clean && yarn rb",
     "tsw": "yarn tsc --watch",
     "start": "rimraf dist && yarn tsw",
     "lint": "eslint . --ext .ts",
     "prettier": "prettier --write '**/*.@(js|ts|tsx|json|css)' --ignore-path ../../../.prettierignore",
     "test": "NODE_OPTIONS=\"--experimental-vm-modules --no-warnings\" jest --ci --runInBand",
     "coverage": "yarn test --coverage",
-    "check": "yarn prettier && yarn lint && yarn build && yarn test && yarn doc"
+    "check": "yarn prettier && yarn lint && yarn build && yarn test"
   },
   "dependencies": {
     "@cloudflare/workers-types": "^4.20230321.0",
-    "@launchdarkly/js-server-sdk-common-edge": "1.0.12",
     "crypto-js": "^4.1.1"
   },
   "devDependencies": {
+    "@launchdarkly/js-server-sdk-common-edge": "1.0.13",
+    "@rollup/plugin-commonjs": "^25.0.4",
+    "@rollup/plugin-json": "^6.0.0",
+    "@rollup/plugin-node-resolve": "^15.2.1",
+    "@rollup/plugin-terser": "^0.4.3",
+    "@rollup/plugin-typescript": "^11.1.3",
     "@trivago/prettier-plugin-sort-imports": "^4.1.1",
     "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.5.0",
+    "@types/rollup-plugin-generate-package-json": "^3.2.3",
     "@typescript-eslint/eslint-plugin": "^6.1.0",
     "@typescript-eslint/parser": "^6.1.0",
     "eslint": "^8.45.0",
@@ -57,9 +66,17 @@
     "launchdarkly-js-test-helpers": "^2.2.0",
     "miniflare": "^2.13.0",
     "prettier": "^3.0.0",
-    "rimraf": "^5.0.0",
+    "rimraf": "^5.0.1",
+    "rollup": "^3.29.2",
+    "rollup-plugin-dts": "^6.0.2",
+    "rollup-plugin-esbuild": "^5.0.0",
+    "rollup-plugin-filesize": "^10.0.0",
+    "rollup-plugin-generate-package-json": "^3.2.0",
     "ts-jest": "^29.1.0",
     "typedoc": "0.25.0",
     "typescript": "5.1.6"
-  }
+  },
+  "bundledDependencies": [
+    "@launchdarkly/js-server-sdk-common-edge"
+  ]
 }
diff --git a/packages/sdk/cloudflare/rollup.config.ts b/packages/sdk/cloudflare/rollup.config.ts
new file mode 100644
index 000000000..4947a117c
--- /dev/null
+++ b/packages/sdk/cloudflare/rollup.config.ts
@@ -0,0 +1,53 @@
+import commonjs from '@rollup/plugin-commonjs';
+import json from '@rollup/plugin-json';
+import resolve from '@rollup/plugin-node-resolve';
+import terser from '@rollup/plugin-terser';
+import dts from 'rollup-plugin-dts';
+import esbuild from 'rollup-plugin-esbuild';
+import filesize from 'rollup-plugin-filesize';
+
+const inputPath = 'src/index.ts';
+const cjsPath = 'dist/cjs/index.js';
+const esmPath = 'dist/esm/index.js';
+const typingsPath = 'dist/index.d.ts';
+
+const plugins = [resolve(), commonjs(), esbuild(), json(), terser(), filesize()];
+
+// the second array item is a function to include all js-core packages in the bundle so they
+// are not imported or required as separate npm packages
+const external = [/node_modules/, (id: string) => !id.includes('js-core')];
+
+export default [
+  {
+    input: inputPath,
+    output: [
+      {
+        file: cjsPath,
+        format: 'cjs',
+        sourcemap: true,
+      },
+    ],
+    plugins,
+    external,
+  },
+  {
+    input: inputPath,
+    output: [
+      {
+        file: esmPath,
+        format: 'esm',
+        sourcemap: true,
+      },
+    ],
+    plugins,
+    external,
+  },
+  {
+    input: inputPath,
+    plugins: [dts(), json()],
+    output: {
+      file: typingsPath,
+      format: 'esm',
+    },
+  },
+];
diff --git a/packages/sdk/cloudflare/src/index.test.ts b/packages/sdk/cloudflare/src/index.test.ts
index baeed982f..978d525d6 100644
--- a/packages/sdk/cloudflare/src/index.test.ts
+++ b/packages/sdk/cloudflare/src/index.test.ts
@@ -51,7 +51,7 @@ describe('init', () => {
     });
 
     test('rule match', async () => {
-      const contextWithEmail = { ...context, email: 'test@gmail.com' };
+      const contextWithEmail = { ...context, email: 'test@falsemail.com' };
       const value = await ldClient.variation(flagKey1, contextWithEmail, false);
       const detail = await ldClient.variationDetail(flagKey1, contextWithEmail, false);
 
diff --git a/packages/sdk/cloudflare/src/testData.json b/packages/sdk/cloudflare/src/testData.json
index b9e5296c0..f4b0b3e3f 100644
--- a/packages/sdk/cloudflare/src/testData.json
+++ b/packages/sdk/cloudflare/src/testData.json
@@ -14,7 +14,7 @@
               "contextKind": "user",
               "attribute": "/email",
               "op": "contains",
-              "values": ["gmail"],
+              "values": ["falsemail"],
               "negate": false
             }
           ],
diff --git a/packages/sdk/cloudflare/tsconfig.json b/packages/sdk/cloudflare/tsconfig.json
index 3192817ef..cdc07991e 100644
--- a/packages/sdk/cloudflare/tsconfig.json
+++ b/packages/sdk/cloudflare/tsconfig.json
@@ -3,9 +3,9 @@
     // Uses "." so it can load package.json.
     "rootDir": ".",
     "outDir": "dist",
-    "target": "es2017",
+    "target": "ES2017",
     "lib": ["es6"],
-    "module": "commonjs",
+    "module": "ES6",
     "strict": true,
     "noImplicitOverride": true,
     "allowSyntheticDefaultImports": true,
diff --git a/packages/sdk/server-node/CHANGELOG.md b/packages/sdk/server-node/CHANGELOG.md
index a62696ab6..9c5fb44cb 100644
--- a/packages/sdk/server-node/CHANGELOG.md
+++ b/packages/sdk/server-node/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 All notable changes to `@launchdarkly/node-server-sdk` will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [8.2.4](https://github.com/launchdarkly/js-core/compare/node-server-sdk-v8.2.3...node-server-sdk-v8.2.4) (2023-09-06)
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/js-server-sdk-common bumped from 1.2.2 to 1.2.3
+
 ## [8.2.3](https://github.com/launchdarkly/js-core/compare/node-server-sdk-v8.2.2...node-server-sdk-v8.2.3) (2023-08-28)
 
 ## Fixes:
diff --git a/packages/sdk/server-node/package.json b/packages/sdk/server-node/package.json
index 03bf9f147..ad1d283eb 100644
--- a/packages/sdk/server-node/package.json
+++ b/packages/sdk/server-node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/node-server-sdk",
-  "version": "8.2.3",
+  "version": "8.2.4",
   "description": "LaunchDarkly Server-Side SDK for Node.js",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/server-node",
   "repository": {
@@ -45,7 +45,7 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
-    "@launchdarkly/js-server-sdk-common": "1.2.2",
+    "@launchdarkly/js-server-sdk-common": "1.2.3",
     "https-proxy-agent": "^5.0.1",
     "launchdarkly-eventsource": "2.0.1"
   },
diff --git a/packages/sdk/server-node/src/api/LDClient.ts b/packages/sdk/server-node/src/api/LDClient.ts
index a2db76627..67810a88f 100644
--- a/packages/sdk/server-node/src/api/LDClient.ts
+++ b/packages/sdk/server-node/src/api/LDClient.ts
@@ -11,6 +11,11 @@ import { BigSegmentStoreStatusProvider } from './interfaces';
  * and continue to use it throughout the lifetime of the application, rather than creating instances
  * on the fly.
  *
+ * Note that `LDClient` inherits from `EventEmitter`, so you can use the standard `on()`, `once()`, and
+ * `off()` methods to receive events. The standard `EventEmitter` methods are not documented here; see the
+ * {@link https://nodejs.org/api/events.html#events_class_eventemitter|Node API documentation}. For a
+ * description of events you can listen for, see {@link on}.
+ *
  */
 export interface LDClient extends LDClientCommon, EventEmitter {
   /**
@@ -21,4 +26,30 @@ export interface LDClient extends LDClientCommon, EventEmitter {
    * {@link interfaces.BigSegmentStoreStatusProvider} for more about this functionality.
    */
   readonly bigSegmentStoreStatusProvider: BigSegmentStoreStatusProvider;
+
+  /**
+   *
+   * Registers an event listener that will be called when the client triggers some type of event.
+   *
+   * This is the standard `on` method inherited from Node's `EventEmitter`; see the
+   * {@link https://nodejs.org/api/events.html#events_class_eventemitter|Node API docs} for more
+   * details on how to manage event listeners. Here is a description of the event types defined
+   * by `LDClient`.
+   *
+   * - `"ready"`: Sent only once, when the client has successfully connected to LaunchDarkly.
+   * Alternately, you can detect this with [[waitForInitialization]].
+   * - `"failed"`: Sent only once, if the client has permanently failed to connect to LaunchDarkly.
+   * Alternately, you can detect this with [[waitForInitialization]].
+   * - `"error"`: Contains an error object describing some abnormal condition that the client has detected
+   * (such as a network error).
+   * - `"update"`: The client has received a change to a feature flag. The event parameter is an object
+   * containing a single property, `key`, the flag key. Note that this does not necessarily mean the flag's
+   * value has changed for any particular context, only that some part of the flag configuration was changed.
+   * - `"update:KEY"`: The client has received a change to the feature flag whose key is KEY. This is the
+   * same as `"update"` but allows you to listen for a specific flag.
+   *
+   * @param event the name of the event to listen for
+   * @param listener the function to call when the event happens
+   */
+  on(event: string | symbol, listener: (...args: any[]) => void): this;
 }
diff --git a/packages/sdk/vercel/CHANGELOG.md b/packages/sdk/vercel/CHANGELOG.md
index d24de7c68..afb629395 100644
--- a/packages/sdk/vercel/CHANGELOG.md
+++ b/packages/sdk/vercel/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to the LaunchDarkly SDK for Vercel Edge Config will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org).
 
+## [1.1.4](https://github.com/launchdarkly/js-core/compare/vercel-server-sdk-v1.1.3...vercel-server-sdk-v1.1.4) (2023-09-06)
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
 ### Dependencies
 
 * The following workspace dependencies were updated
@@ -10,6 +16,12 @@ All notable changes to the LaunchDarkly SDK for Vercel Edge Config will be docum
 
 ### Dependencies
 
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/js-server-sdk-common-edge bumped from 1.0.12 to 1.0.13
+
+### Dependencies
+
 * The following workspace dependencies were updated
   * dependencies
     * @launchdarkly/js-server-sdk-common-edge bumped from 1.0.11 to 1.0.12
diff --git a/packages/sdk/vercel/package.json b/packages/sdk/vercel/package.json
index f6c852683..3350e057c 100644
--- a/packages/sdk/vercel/package.json
+++ b/packages/sdk/vercel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/vercel-server-sdk",
-  "version": "1.1.3",
+  "version": "1.1.4",
   "description": "LaunchDarkly Server-Side SDK for Vercel Edge",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/vercel",
   "repository": {
@@ -36,7 +36,7 @@
     "check": "yarn prettier && yarn lint && yarn build && yarn test && yarn doc"
   },
   "dependencies": {
-    "@launchdarkly/js-server-sdk-common-edge": "1.0.12",
+    "@launchdarkly/js-server-sdk-common-edge": "1.0.13",
     "@vercel/edge-config": "^0.1.8",
     "crypto-js": "^4.1.1"
   },
diff --git a/packages/shared/akamai-edgeworker-sdk/CHANGELOG.md b/packages/shared/akamai-edgeworker-sdk/CHANGELOG.md
index 9e6a9cf32..ed6c47936 100644
--- a/packages/shared/akamai-edgeworker-sdk/CHANGELOG.md
+++ b/packages/shared/akamai-edgeworker-sdk/CHANGELOG.md
@@ -50,6 +50,20 @@ All notable changes to the LaunchDarkly SDK for Akamai Workers will be documente
   * dependencies
     * @launchdarkly/js-server-sdk-common bumped from ^1.2.1 to ^1.2.2
 
+## [0.3.4](https://github.com/launchdarkly/js-core/compare/akamai-edgeworker-sdk-common-v0.3.3...akamai-edgeworker-sdk-common-v0.3.4) (2023-09-06)
+
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
+
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/js-server-sdk-common bumped from ^1.2.2 to ^1.2.3
+
 ## [0.3.0](https://github.com/launchdarkly/js-core/compare/akamai-edgeworker-sdk-common-v0.2.7...akamai-edgeworker-sdk-common-v0.3.0) (2023-08-14)
 
 
diff --git a/packages/shared/akamai-edgeworker-sdk/package.json b/packages/shared/akamai-edgeworker-sdk/package.json
index 81a31e457..7717de974 100644
--- a/packages/shared/akamai-edgeworker-sdk/package.json
+++ b/packages/shared/akamai-edgeworker-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/akamai-edgeworker-sdk-common",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/shared/akamai-edge-sdk",
   "repository": {
     "type": "git",
@@ -54,7 +54,7 @@
     "typescript": "5.1.6"
   },
   "dependencies": {
-    "@launchdarkly/js-server-sdk-common": "^1.2.2",
+    "@launchdarkly/js-server-sdk-common": "^1.2.3",
     "crypto-js": "^4.1.1"
   }
 }
diff --git a/packages/shared/akamai-edgeworker-sdk/src/__tests__/testData.json b/packages/shared/akamai-edgeworker-sdk/src/__tests__/testData.json
index 3f1388b52..2ff385cdf 100644
--- a/packages/shared/akamai-edgeworker-sdk/src/__tests__/testData.json
+++ b/packages/shared/akamai-edgeworker-sdk/src/__tests__/testData.json
@@ -97,7 +97,7 @@
       "variations": [true, false],
       "clientSideAvailability": {
         "usingMobileKey": true,
-        "usingEnvironmentId": true
+        "usingEnvironmentId": false
       },
       "clientSide": false,
       "salt": "aef830243d6640d0a973be89988e008d",
diff --git a/packages/shared/sdk-server-edge/CHANGELOG.md b/packages/shared/sdk-server-edge/CHANGELOG.md
index 854f19c4c..1a2756ca0 100644
--- a/packages/shared/sdk-server-edge/CHANGELOG.md
+++ b/packages/shared/sdk-server-edge/CHANGELOG.md
@@ -60,6 +60,12 @@
   * dependencies
     * @launchdarkly/js-server-sdk-common bumped from 1.2.1 to 1.2.2
 
+### Dependencies
+
+* The following workspace dependencies were updated
+  * dependencies
+    * @launchdarkly/js-server-sdk-common bumped from 1.2.2 to 1.2.3
+
 ## [1.0.8](https://github.com/launchdarkly/js-core/compare/js-server-sdk-common-edge-v1.0.7...js-server-sdk-common-edge-v1.0.8) (2023-08-10)
 
 
diff --git a/packages/shared/sdk-server-edge/package.json b/packages/shared/sdk-server-edge/package.json
index de25ba3c0..cba17cd4a 100644
--- a/packages/shared/sdk-server-edge/package.json
+++ b/packages/shared/sdk-server-edge/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/js-server-sdk-common-edge",
-  "version": "1.0.12",
+  "version": "1.0.13",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/shared/sdk-server-edge",
   "repository": {
     "type": "git",
@@ -36,7 +36,7 @@
     "check": "yarn prettier && yarn lint && yarn build && yarn test && yarn doc"
   },
   "dependencies": {
-    "@launchdarkly/js-server-sdk-common": "1.2.2",
+    "@launchdarkly/js-server-sdk-common": "1.2.3",
     "crypto-js": "^4.1.1"
   },
   "devDependencies": {
diff --git a/packages/shared/sdk-server/CHANGELOG.md b/packages/shared/sdk-server/CHANGELOG.md
index a3f96ff1b..8dfed787e 100644
--- a/packages/shared/sdk-server/CHANGELOG.md
+++ b/packages/shared/sdk-server/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to `@launchdarkly/js-server-sdk-common` will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [1.2.3](https://github.com/launchdarkly/js-core/compare/js-server-sdk-common-v1.2.2...js-server-sdk-common-v1.2.3) (2023-09-06)
+
+
+### Bug Fixes
+
+* Use clientSideAvailability instead of clientSide for filtering client side flags. ([#270](https://github.com/launchdarkly/js-core/issues/270)) ([2702342](https://github.com/launchdarkly/js-core/commit/27023429d36986466cda46aa4d95eb01c10cd455))
+
 ## [1.2.2](https://github.com/launchdarkly/js-core/compare/js-server-sdk-common-v1.2.1...js-server-sdk-common-v1.2.2) (2023-08-28)
 
 
diff --git a/packages/shared/sdk-server/__tests__/LDClient.allFlags.test.ts b/packages/shared/sdk-server/__tests__/LDClient.allFlags.test.ts
index 5861068c2..4f3fd1987 100644
--- a/packages/shared/sdk-server/__tests__/LDClient.allFlags.test.ts
+++ b/packages/shared/sdk-server/__tests__/LDClient.allFlags.test.ts
@@ -108,28 +108,28 @@ describe('given an LDClient with test data', () => {
       on: false,
       offVariation: 0,
       variations: ['a'],
-      clientSide: false,
     });
     td.usePreconfiguredFlag({
       key: 'server-side-2',
       on: false,
       offVariation: 0,
       variations: ['b'],
-      clientSide: false,
+      // Absence and false should be equivalent, so we add a false one here.
+      clientSideAvailability: { usingEnvironmentId: false },
     });
     td.usePreconfiguredFlag({
       key: 'client-side-1',
       on: false,
       offVariation: 0,
       variations: ['value1'],
-      clientSide: true,
+      clientSideAvailability: { usingEnvironmentId: true },
     });
     td.usePreconfiguredFlag({
       key: 'client-side-2',
       on: false,
       offVariation: 0,
       variations: ['value2'],
-      clientSide: true,
+      clientSideAvailability: { usingEnvironmentId: true },
     });
     const state = await client.allFlagsState(defaultUser, { clientSideOnly: true });
     expect(state.valid).toEqual(true);
@@ -241,28 +241,26 @@ describe('given an LDClient with test data', () => {
       on: false,
       offVariation: 0,
       variations: ['a'],
-      clientSide: false,
     });
     td.usePreconfiguredFlag({
       key: 'server-side-2',
       on: false,
       offVariation: 0,
       variations: ['b'],
-      clientSide: false,
     });
     td.usePreconfiguredFlag({
       key: 'client-side-1',
       on: false,
       offVariation: 0,
       variations: ['value1'],
-      clientSide: true,
+      clientSideAvailability: { usingEnvironmentId: true },
     });
     td.usePreconfiguredFlag({
       key: 'client-side-2',
       on: false,
       offVariation: 0,
       variations: ['value2'],
-      clientSide: true,
+      clientSideAvailability: { usingEnvironmentId: true },
     });
     client.allFlagsState(defaultUser, { clientSideOnly: true }, (err, state) => {
       expect(state.valid).toEqual(true);
diff --git a/packages/shared/sdk-server/package.json b/packages/shared/sdk-server/package.json
index 0b45b114d..9a3c4fbb9 100644
--- a/packages/shared/sdk-server/package.json
+++ b/packages/shared/sdk-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/js-server-sdk-common",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "type": "commonjs",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/shared/sdk-server/src/LDClientImpl.ts b/packages/shared/sdk-server/src/LDClientImpl.ts
index bd07fabd1..abecc4006 100644
--- a/packages/shared/sdk-server/src/LDClientImpl.ts
+++ b/packages/shared/sdk-server/src/LDClientImpl.ts
@@ -302,7 +302,7 @@ export default class LDClientImpl implements LDClient {
             Object.values(allFlags),
             (storeItem, iterCb) => {
               const flag = storeItem as Flag;
-              if (clientOnly && !flag.clientSide) {
+              if (clientOnly && !flag.clientSideAvailability?.usingEnvironmentId) {
                 iterCb(true);
                 return;
               }
diff --git a/packages/store/node-server-sdk-dynamodb/CHANGELOG.md b/packages/store/node-server-sdk-dynamodb/CHANGELOG.md
index a8b9278dd..b21c86d96 100644
--- a/packages/store/node-server-sdk-dynamodb/CHANGELOG.md
+++ b/packages/store/node-server-sdk-dynamodb/CHANGELOG.md
@@ -48,6 +48,12 @@
   * devDependencies
     * @launchdarkly/node-server-sdk bumped from 8.2.2 to 8.2.3
 
+### Dependencies
+
+* The following workspace dependencies were updated
+  * devDependencies
+    * @launchdarkly/node-server-sdk bumped from 8.2.3 to 8.2.4
+
 ## [5.0.6](https://github.com/launchdarkly/js-core/compare/node-server-sdk-dynamodb-v5.0.5...node-server-sdk-dynamodb-v5.0.6) (2023-08-10)
 
 
diff --git a/packages/store/node-server-sdk-dynamodb/package.json b/packages/store/node-server-sdk-dynamodb/package.json
index f4a231c90..378efbae5 100644
--- a/packages/store/node-server-sdk-dynamodb/package.json
+++ b/packages/store/node-server-sdk-dynamodb/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/node-server-sdk-dynamodb",
-  "version": "5.0.10",
+  "version": "5.0.11",
   "description": "DynamoDB-backed feature store for the LaunchDarkly Server-Side SDK for Node.js",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/store/node-server-sdk-dynamodb",
   "repository": {
@@ -35,7 +35,7 @@
   },
   "devDependencies": {
     "@aws-sdk/client-dynamodb": "3.348.0",
-    "@launchdarkly/node-server-sdk": "8.2.3",
+    "@launchdarkly/node-server-sdk": "8.2.4",
     "@trivago/prettier-plugin-sort-imports": "^4.1.1",
     "@types/jest": "^29.4.0",
     "@typescript-eslint/eslint-plugin": "^6.1.0",
diff --git a/packages/store/node-server-sdk-redis/CHANGELOG.md b/packages/store/node-server-sdk-redis/CHANGELOG.md
index d828fcd2f..2612690f2 100644
--- a/packages/store/node-server-sdk-redis/CHANGELOG.md
+++ b/packages/store/node-server-sdk-redis/CHANGELOG.md
@@ -48,6 +48,12 @@
   * devDependencies
     * @launchdarkly/node-server-sdk bumped from 8.2.2 to 8.2.3
 
+### Dependencies
+
+* The following workspace dependencies were updated
+  * devDependencies
+    * @launchdarkly/node-server-sdk bumped from 8.2.3 to 8.2.4
+
 ## [3.0.6](https://github.com/launchdarkly/js-core/compare/node-server-sdk-redis-v3.0.5...node-server-sdk-redis-v3.0.6) (2023-08-10)
 
 
diff --git a/packages/store/node-server-sdk-redis/package.json b/packages/store/node-server-sdk-redis/package.json
index c8968b57a..a04f34a9b 100644
--- a/packages/store/node-server-sdk-redis/package.json
+++ b/packages/store/node-server-sdk-redis/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@launchdarkly/node-server-sdk-redis",
-  "version": "3.0.10",
+  "version": "3.0.11",
   "description": "Redis-backed feature store for the LaunchDarkly Server-Side SDK for Node.js",
   "homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/store/node-server-sdk-redis",
   "repository": {
@@ -33,7 +33,7 @@
     "@launchdarkly/node-server-sdk": "8.x"
   },
   "devDependencies": {
-    "@launchdarkly/node-server-sdk": "8.2.3",
+    "@launchdarkly/node-server-sdk": "8.2.4",
     "@trivago/prettier-plugin-sort-imports": "^4.1.1",
     "@types/jest": "^29.4.0",
     "@typescript-eslint/eslint-plugin": "^6.1.0",
diff --git a/scripts/build-package.sh b/scripts/build-package.sh
index 25282db79..0466d3697 100755
--- a/scripts/build-package.sh
+++ b/scripts/build-package.sh
@@ -1,5 +1,4 @@
-#!/bin/bash
-
+#!/usr/bin/env bash
 # Run this script like:
 # ./scripts/build-package.sh