diff --git a/nixos/doc/manual/release-notes/rl-2411.section.md b/nixos/doc/manual/release-notes/rl-2411.section.md
index 9f390a666244..ae2fbab9446c 100644
--- a/nixos/doc/manual/release-notes/rl-2411.section.md
+++ b/nixos/doc/manual/release-notes/rl-2411.section.md
@@ -334,6 +334,11 @@
   This change requires granting access to the repositories to this user or
   setting the appropriate one through `services.cgit.some-instance.user`.
 
+- `gradle_6` was removed due to being [unsupported upstream as of 10 Feb 2023](https://endoflife.date/gradle).
+  Additionally, it had numerous security vulnerabilities that were only patched
+  in later versions, such as [CVE-2021-29429](https://nvd.nist.gov/vuln/detail/CVE-2021-32751),
+  [CVE-2021-29427](https://nvd.nist.gov/vuln/detail/CVE-2021-29427), [CVE-2021-29428](https://nvd.nist.gov/vuln/detail/CVE-2021-29428), and [CVE-2021-32751](https://nvd.nist.gov/vuln/detail/CVE-2021-32751).
+
 - `nvimpager` was updated to version 0.13.0, which changes the order of user and
   nvimpager settings: user commands in `-c` and `--cmd` now override the
   respective default settings because they are executed later.
diff --git a/pkgs/development/tools/build-managers/gradle/default.nix b/pkgs/development/tools/build-managers/gradle/default.nix
index 970dcf2d638f..a2a1c1115a53 100644
--- a/pkgs/development/tools/build-managers/gradle/default.nix
+++ b/pkgs/development/tools/build-managers/gradle/default.nix
@@ -195,18 +195,6 @@ rec {
     defaultJava = jdk17;
   };
 
-  gradle_6 = gen {
-    version = "6.9.4";
-    hash = "sha256-PiQCKFON6fGHcqV06ZoLqVnoPW7zUQFDgazZYxeBOJo=";
-    defaultJava = jdk11;
-    meta.knownVulnerabilities = [
-      "CVE-2021-29429: '[...]files created with open permissions in the system temporary directory can allow an attacker to access information downloaded by Gradle[...]'"
-      "CVE-2021-29427: '[...]there is a vulnerability which can lead to information disclosure and/or dependency poisoning[...] In some cases, Gradle may ignore content filters and search all repositories for dependencies. This only occurs when repository content filtering is used from within a `pluginManagement` block in a settings file.'"
-      "CVE-2021-29428: '[...]the system temporary directory can be created with open permissions that allow multiple users to create and delete files within it. Gradle builds could be vulnerable to a local privilege escalation from an attacker quickly deleting and recreating files in the system temporary directory.'"
-      "CVE-2021-32751: '[...]start scripts generated by the `application` plugin and the `gradlew` script are both vulnerable to arbitrary code execution when an attacker is able to change environment variables for the user running the script[...]'"
-    ];
-  };
-
   wrapGradle = {
       lib, callPackage, mitm-cache, substituteAll, symlinkJoin, concatTextFile, makeSetupHook, nix-update-script
     }:
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index c08ecc0f2f8e..8adba09d6cd8 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -466,6 +466,8 @@ mapAliases {
   gnuradio3_9Minimal = throw "gnuradio3_9Minimal has been removed because it is not compatible with the latest volk and it had no dependent packages which justified it's distribution"; # Added 2024-07-28
   gnuradio3_9Packages = throw "gnuradio3_9Minimal has been removed because it is not compatible with the latest volk and it had no dependent packages which justified it's distribution"; # Added 2024-07-28
   gobby5 = throw "'gobby5' has been renamed to/replaced by 'gobby'"; # Converted to throw 2024-10-17
+  gradle_6 = throw "Gradle 6 has been removed, as it is end-of-life (https://endoflife.date/gradle) and has many vulnerabilities that are not resolved until Gradle 7."; # Added 2024-10-30
+  gradle_6-unwrapped = throw "Gradle 6 has been removed, as it is end-of-life (https://endoflife.date/gradle) and has many vulnerabilities that are not resolved until Gradle 7."; # Added 2024-10-30
 
   #godot
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 6c0b5ec0d532..7e71e4f8fedb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17609,12 +17609,10 @@ with pkgs;
   gradleGen = gradle-packages.gen;
   wrapGradle = callPackage gradle-packages.wrapGradle { };
 
-  gradle_6-unwrapped = callPackage gradle-packages.gradle_6 { };
   gradle_7-unwrapped = callPackage gradle-packages.gradle_7 { };
   gradle_8-unwrapped = callPackage gradle-packages.gradle_8 { };
   gradle-unwrapped = gradle_8-unwrapped;
 
-  gradle_6 = wrapGradle gradle_6-unwrapped null;
   gradle_7 = wrapGradle gradle_7-unwrapped null;
   gradle_8 = wrapGradle gradle_8-unwrapped null;
   gradle = wrapGradle gradle-unwrapped "gradle-unwrapped";