Revert "Removes the logic updates"

This reverts commit fa65615.

packages/yarnpkg-cli/sources/main.ts

@@ -54,12 +54,10 @@ export async function main({binaryVersion, pluginConfiguration}: {binaryVersion:
 
   async function exec(cli: Cli<CommandContext>): Promise<void> {
     // Non-exhaustive known requirements:
-    // - 18.12 is the first LTS release we support
-    // - We don't officially support 14.15, but haven't removed the code to support it yet
-    //   https://github.com/yarnpkg/berry/pull/5445#pullrequestreview-1428580851
+    // - 18.12 is the first LTS release
 
     const version = process.versions.node;
-    const range = `>=14.15.0`;
+    const range = `>=18.12.0`;
 
     // YARN_IGNORE_NODE is special because this code needs to execute as early as possible.
     // It's not a regular core setting because Configuration.find may use functions not available

packages/yarnpkg-fslib/sources/FakeFS.ts

@@ -103,9 +103,8 @@ export type WatchFileCallback = (
 ) => void;
 
 export type StatWatcher = EventEmitter & {
-  // Node 14+
-  ref?: () => StatWatcher;
-  unref?: () => StatWatcher;
+  ref: () => StatWatcher;
+  unref: () => StatWatcher;
 };
 
 export type ExtractHintOptions = {

packages/yarnpkg-pnp/sources/esm-loader/loader.ts

@@ -1,11 +1,6 @@
-import {getFormat as getFormatHook} from './hooks/getFormat';
-import {getSource as getSourceHook} from './hooks/getSource';
-import {load as loadHook}           from './hooks/load';
-import {resolve as resolveHook}     from './hooks/resolve';
-import {HAS_CONSOLIDATED_HOOKS}     from './loaderFlags';
+import {load as loadHook}       from './hooks/load';
+import {resolve as resolveHook} from './hooks/resolve';
 import './fspatch';
 
 export const resolve = resolveHook;
-export const getFormat = HAS_CONSOLIDATED_HOOKS ? undefined : getFormatHook;
-export const getSource = HAS_CONSOLIDATED_HOOKS ? undefined : getSourceHook;
-export const load = HAS_CONSOLIDATED_HOOKS ? loadHook : undefined;
+export const load = loadHook;

packages/yarnpkg-pnp/sources/esm-loader/loaderFlags.ts

@@ -1,13 +1,10 @@
 const [major, minor] = process.versions.node.split(`.`).map(value => parseInt(value, 10));
 
-// The hooks were consolidated in https://github.com/nodejs/node/pull/37468
-export const HAS_CONSOLIDATED_HOOKS = major > 16 || (major === 16 && minor >= 12);
-
 // JSON modules were unflagged in https://github.com/nodejs/node/pull/41736
-export const HAS_UNFLAGGED_JSON_MODULES = major > 17 || (major === 17 && minor >= 5) || (major === 16 && minor >= 15);
+export const HAS_UNFLAGGED_JSON_MODULES = major > 17 || (major === 17 && minor >= 5);
 
 // JSON modules requires import assertions after https://github.com/nodejs/node/pull/40250
-export const HAS_JSON_IMPORT_ASSERTION_REQUIREMENT = major > 17 || (major === 17 && minor >= 1) || (major === 16 && minor > 14);
+export const HAS_JSON_IMPORT_ASSERTION_REQUIREMENT = major > 17 || (major === 17 && minor >= 1);
 
 // The message switched to using an array in https://github.com/nodejs/node/pull/45348
 export const WATCH_MODE_MESSAGE_USES_ARRAYS = major > 19 || (major === 19 && minor >= 2) || (major === 18 && minor >= 13);