diff --git a/Formula/o/opensearch.rb b/Formula/o/opensearch.rb
index e2e47c11c3e19..0c0a5b308037e 100644
--- a/Formula/o/opensearch.rb
+++ b/Formula/o/opensearch.rb
@@ -1,31 +1,24 @@
 class Opensearch < Formula
   desc "Open source distributed and RESTful search engine"
   homepage "https://github.com/opensearch-project/OpenSearch"
-  url "https://github.com/opensearch-project/OpenSearch/archive/refs/tags/2.19.2.tar.gz"
-  sha256 "660eaf0958e79198c3f5483361b70a1f7618ae965955d25f2ca48ca2d113ed18"
+  url "https://github.com/opensearch-project/OpenSearch/archive/refs/tags/3.0.0.tar.gz"
+  sha256 "5701c0a0e801a27cb1fb6521c17138c43a0933e364fa2cfb5a62cfcdcb4e1270"
   license "Apache-2.0"
 
   bottle do
-    sha256 cellar: :any_skip_relocation, arm64_sequoia: "2dc6a9a9df5ecb31dc045f765c6fa4a725793d91b70595861ad3f11b3b0064a7"
-    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "88975f6160f4a89fc9493e6c889b8b698dec4028a527bfa68da32214c1ba1bbb"
-    sha256 cellar: :any_skip_relocation, arm64_ventura: "ec9dce75fab4820d576da5b88bc86cdc3247824f1bad98f6e9333eadc09c5597"
-    sha256 cellar: :any_skip_relocation, sonoma:        "668204234f0812989aa2e7ffc52661c578e3ac935b952907be2260554cfc3ac9"
-    sha256 cellar: :any_skip_relocation, ventura:       "15d0a18e26c272146a86425d0ce5c2dbf1c5c433aab352db783e46b66ee17795"
-    sha256 cellar: :any_skip_relocation, arm64_linux:   "ffd1eddbab1e73489038703ac8ef8c6beadd30b054f830c85d21454adfd3e39e"
-    sha256 cellar: :any_skip_relocation, x86_64_linux:  "c24ab6ddd1a235545f34efa48bb75be5e607590bd6929acc9ab6b343fc9e8f32"
+    sha256 cellar: :any_skip_relocation, arm64_sequoia: "02c7d73c1f51d079efc702aeabc45e840dfbd6f9c3e3a5d5d39845b7e084f9b9"
+    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "08a110cc034a792732c5612adfa6879b8d0cd360d0abb538f4987be274bdf829"
+    sha256 cellar: :any_skip_relocation, arm64_ventura: "3ff98574221a06111ee8663c5a55f9de0661b3275f85c93fea08cc4b93a21abb"
+    sha256 cellar: :any_skip_relocation, sonoma:        "9ac2af223ccdc1bc9df151bd53e56415c3ea5a3dd664e9ff6efd32734df83974"
+    sha256 cellar: :any_skip_relocation, ventura:       "7316664aaad936f205d760e5e3292b3f567723d05acd4eaf7cf3c7818333a60b"
+    sha256 cellar: :any_skip_relocation, arm64_linux:   "2af72cc2f707be2ca3ea709fbf1e597a923e4daa7a3e5610178bb697bb022eb8"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "c7f8b518e5898e1af368400a5053ee50e2df258bc05de53dfcc8549ffffab46f"
   end
 
   depends_on "gradle" => :build
   # Can be updated after https://github.com/opensearch-project/OpenSearch/pull/18085 is released.
   depends_on "openjdk@21"
 
-  # Remove below patches after https://github.com/opensearch-project/OpenSearch/pull/17942 is released.
-  patch :DATA
-  patch do
-    url "https://github.com/opensearch-project/OpenSearch/commit/d3eb8fe5e85f1103d73410703269a0f967ad3ec2.patch?full_index=1"
-    sha256 "f9c91e12cdbcb8625bcc704d34d6d10bdfc94aa86395faa6293bdf41d030cfe8"
-  end
-
   def install
     platform = OS.kernel_name.downcase
     platform += "-arm64" if Hardware::CPU.arm?
@@ -37,7 +30,7 @@ def install
         Dir["../distribution/archives/no-jdk-#{platform}-tar/build/distributions/opensearch-*.tar.gz"].first
 
       # Install into package directory
-      libexec.install "bin", "lib", "modules"
+      libexec.install "bin", "lib", "modules", "agent"
 
       # Set up Opensearch for local development:
       inreplace "config/opensearch.yml" do |s|
@@ -103,11 +96,9 @@ def caveats
     port = free_port
     (testpath/"data").mkdir
     (testpath/"logs").mkdir
-    fork do
-      exec bin/"opensearch", "-Ehttp.port=#{port}",
-                             "-Epath.data=#{testpath}/data",
-                             "-Epath.logs=#{testpath}/logs"
-    end
+    spawn bin/"opensearch", "-Ehttp.port=#{port}",
+                            "-Epath.data=#{testpath}/data",
+                            "-Epath.logs=#{testpath}/logs"
     sleep 60
     output = shell_output("curl -s -XGET localhost:#{port}/")
     assert_equal "opensearch", JSON.parse(output)["version"]["distribution"]
@@ -115,81 +106,3 @@ def caveats
     system bin/"opensearch-plugin", "list"
   end
 end
-
-__END__
-diff --git a/build.gradle b/build.gradle
-index 679f7b9299248fb0f5173db8fccdfb77965e394b..187574da9e62aec063548871f5dc1a7fbf62a082 100644
---- a/build.gradle
-+++ b/build.gradle
-@@ -721,7 +721,7 @@ subprojects {
- reporting {
-   reports {
-     testAggregateTestReport(AggregateTestReport) {
--      testType = TestSuiteType.UNIT_TEST
-+      testSuiteName = "test"
-     }
-   }
- }
-diff --git a/distribution/packages/build.gradle b/distribution/packages/build.gradle
-index 113ab8aced60b29406c60a80ae2097505eb9923b..b94431c63c96467fa75ba7cc607391997dd287fc 100644
---- a/distribution/packages/build.gradle
-+++ b/distribution/packages/build.gradle
-@@ -63,7 +63,7 @@ import java.util.regex.Pattern
-  */
-
- plugins {
--  id "com.netflix.nebula.ospackage-base" version "11.10.1"
-+  id "com.netflix.nebula.ospackage-base" version "11.11.2"
- }
-
- void addProcessFilesTask(String type, boolean jdk) {
-diff --git a/gradle/code-coverage.gradle b/gradle/code-coverage.gradle
-index eb27dd1a76634251bceafd6fefbafd65eafd5c66..1e41f12e1cc48de3ec9bcd0078f348f3a30af8f3 100644
---- a/gradle/code-coverage.gradle
-+++ b/gradle/code-coverage.gradle
-@@ -38,7 +38,7 @@ if (System.getProperty("tests.coverage")) {
-   reporting {
-     reports {
-       testCodeCoverageReport(JacocoCoverageReport) {
--        testType = TestSuiteType.UNIT_TEST
-+        testSuiteName = "test"
-       }
-     }
-   }
-diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
-index c51246f2815f5294bd8a51b3ac25c19964577ac1..95e1a2f213a063c0f371f4eab8e67ba860be7baa 100644
---- a/gradle/wrapper/gradle-wrapper.properties
-+++ b/gradle/wrapper/gradle-wrapper.properties
-@@ -11,7 +11,7 @@
-
- distributionBase=GRADLE_USER_HOME
- distributionPath=wrapper/dists
--distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-all.zip
-+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-all.zip
- zipStoreBase=GRADLE_USER_HOME
- zipStorePath=wrapper/dists
--distributionSha256Sum=296742a352f0b20ec14b143fb684965ad66086c7810b7b255dee216670716175
-+distributionSha256Sum=fba8464465835e74f7270bbf43d6d8a8d7709ab0a43ce1aa3323f73e9aa0c612
-diff --git a/gradlew b/gradlew
-index f5feea6d6b116baaca5a2642d4d9fa1f47d574a7..faf93008b77e7b52e18c44e4eef257fc2f8fd76d 100755
---- a/gradlew
-+++ b/gradlew
-@@ -86,8 +86,7 @@ done
- # shellcheck disable=SC2034
- APP_BASE_NAME=${0##*/}
- # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
--APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
--' "$PWD" ) || exit
-+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
-
- # Use the maximum available, or set MAX_FD != -1 to use that value.
- MAX_FD=maximum
-@@ -206,7 +205,7 @@ fi
- DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
- # Collect all arguments for the java command:
--#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
-+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
- #     and any embedded shellness will be escaped.
- #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
- #     treated as '${Hostname}' itself on the command line.