[update] Check for new version even if not updateable

yt_dlp/update.py

@@ -99,6 +99,21 @@ def run_update(ydl):
                 h.update(mv[:n])
         return h.hexdigest()
 
+    # Download and check versions info
+    try:
+        version_info = ydl._opener.open(JSON_URL).read().decode('utf-8')
+        version_info = json.loads(version_info)
+    except Exception:
+        return report_error('can\'t obtain versions info. Please try again later ', True, delim='or')
+
+    def version_tuple(version_str):
+        return tuple(map(int, version_str.split('.')))
+
+    version_id = version_info['tag_name']
+    if version_tuple(__version__) >= version_tuple(version_id):
+        ydl.to_screen(f'yt-dlp is up to date ({__version__})')
+        return
+
     ERRORS = {
         'exe': None,
         'zip': None,
@@ -108,30 +123,15 @@ def run_update(ydl):
     }
     err = ERRORS.get(detect_variant(), ERRORS['unknown'])
     if err:
+        ydl.to_screen(f'Latest version: {version_id}, Current version: {__version__}')
         return report_error(err, expected=True)
 
     # sys.executable is set to the full pathname of the exe-file for py2exe
     # though symlinks are not followed so that we need to do this manually
     # with help of realpath
     filename = compat_realpath(sys.executable if hasattr(sys, 'frozen') else sys.argv[0])
-    ydl.to_screen('Current Build Hash %s' % calc_sha256sum(filename))
-
-    # Download and check versions info
-    try:
-        version_info = ydl._opener.open(JSON_URL).read().decode('utf-8')
-        version_info = json.loads(version_info)
-    except Exception:
-        return report_error('can\'t obtain versions info. Please try again later ', True, delim='or')
-
-    def version_tuple(version_str):
-        return tuple(map(int, version_str.split('.')))
-
-    version_id = version_info['tag_name']
-    if version_tuple(__version__) >= version_tuple(version_id):
-        ydl.to_screen('yt-dlp is up to date (%s)' % __version__)
-        return
-
-    ydl.to_screen('Updating to version ' + version_id + ' ...')
+    ydl.to_screen(f'Current version {__version__}; Build Hash {calc_sha256sum(filename)}')
+    ydl.to_screen(f'Updating to version {version_id} ...')
 
     version_labels = {
         'zip_3': '',