Release 3.8.1.1: lighter idle UI poll, core cache, multicore ping.

Reduce idle CPU (cheap PollUI, binary cache, logbuf cap, DOM fingerprint),
speed ping/AWG HostPort, CopyBuffer pool; ship arm64 build and update notes.

Co-authored-by: Cursor <cursoragent@cursor.com>

versioninfo.json

@@ -3,14 +3,14 @@
     "FileVersion": {
       "Major": 3,
       "Minor": 8,
-      "Patch": 0,
-      "Build": 3
+      "Patch": 1,
+      "Build": 1
     },
     "ProductVersion": {
       "Major": 3,
       "Minor": 8,
-      "Patch": 0,
-      "Build": 3
+      "Patch": 1,
+      "Build": 1
     },
     "FileFlagsMask": "3f",
     "FileFlags": "00",
@@ -21,12 +21,12 @@
   "StringFileInfo": {
     "CompanyName": "EvilFox",
     "FileDescription": "Navis — VPN client (Naive / Hy2 / AWG / VLESS / VMess / Trojan)",
-    "FileVersion": "3.8.0.3",
+    "FileVersion": "3.8.1.1",
     "InternalName": "Navis",
     "LegalCopyright": "Copyright (c) EvilFox",
     "OriginalFilename": "Navis.exe",
     "ProductName": "Navis",
-    "ProductVersion": "3.8.0.3",
+    "ProductVersion": "3.8.1.1",
     "Comments": "Open-source VPN/proxy client. https://evilfox.win/"
   },
   "VarFileInfo": {