[docs] Add changelog entries for dropping Py3.10 & Win8 support (#17889)

Authored by: bashonly

devscripts/changelog_override.json

@@ -409,5 +409,15 @@
         "action": "add",
         "when": "70279f2f0c576e23e1ec1406317d2cb85586af3f",
         "short": "[priority] Security: Old yt-dlp executables are vulnerable to man-in-the-middle attacks\n    - A man-in-the-middle/MITM attack is when your internet traffic is intercepted by an attacker that impersonates the website(s) you browse and sends you malicious data instead.\n    - If you think you may be targeted by such an attack, it is strongly recommended to avoid using the self-updater (e.g. the `-U`, `--update`, `--update-to` command-line options), and instead manually download and install this release's executable.\n    - For more details, see the [`certifi` security advisory](https://github.com/certifi/python-certifi/security/advisories/GHSA-6q48-6c7w-9gw2)"
+    },
+    {
+        "action": "add",
+        "when": "3d28cf4780fa88689fc50010d72cf2f40ce3a3b8",
+        "short": "[priority] **The minimum *required* Python version has been raised to 3.11**\n    - Python 3.10 has reached its end-of-life as of October 2026, and yt-dlp has now removed support for it. [Read more](https://github.com/yt-dlp/yt-dlp/issues/16916)"
+    },
+    {
+        "action": "add",
+        "when": "3d28cf4780fa88689fc50010d72cf2f40ce3a3b8",
+        "short": "[priority] **The official Windows release binaries now require Windows 10 or later.** [Read more](https://github.com/yt-dlp/yt-dlp/issues/16917)"
     }
 ]