Prepare to tag 6.3.0RC1

package.xml

@@ -22,7 +22,7 @@ http://pear.php.net/dtd/package-2.0.xsd">
     <email>p.yatsukhnenko@gmail.com</email>
     <active>yes</active>
   </lead>
-  <date>2025-10-03</date>
+  <date>2025-10-15</date>
   <version>
     <release>6.3.0RC1</release>
     <api>6.2.0</api>
@@ -32,7 +32,20 @@ http://pear.php.net/dtd/package-2.0.xsd">
     <api>stable</api>
   </stability>
   <license uri="http://www.php.net/license">PHP</license>
-  <notes>    --- 6.3.0RC1 ---
+  <notes>
+
+    --- Sponsors ---
+
+    A-VISION Advertising - https://github.com/A-VISION-BV
+    Avtandil Kikabidze - https://github.com/akalongman
+    Geoffrey Hoffman - https://github.com/phpguru
+    Object Cache Pro for WordPress - https://objectcache.pro/
+    Open LMS - https://openlms.net/
+    Relay - https://relay.so)
+    Salvatore Sanfilippo - https://github.com/antirez
+    Ty Karok - https://github.com/karock
+
+    --- 6.3.0RC1 ---
 
     This release introduces support for dozens of new commands, including hash
     field expiration, Valkey’s DELIFEQ, and Redis vector set operations. It also
@@ -232,8 +245,21 @@ http://pear.php.net/dtd/package-2.0.xsd">
         <release>6.3.0RC1</release>
         <api>6.2.0</api>
       </version>
-      <date>2025-10-03</date>
-      <notes>    --- 6.3.0RC1 ---
+      <date>2025-10-15</date>
+      <notes>
+
+    --- Sponsors ---
+
+    A-VISION Advertising - https://github.com/A-VISION-BV
+    Avtandil Kikabidze - https://github.com/akalongman
+    Geoffrey Hoffman - https://github.com/phpguru
+    Object Cache Pro for WordPress - https://objectcache.pro/
+    Open LMS - https://openlms.net/
+    Relay - https://relay.so)
+    Salvatore Sanfilippo - https://github.com/antirez
+    Ty Karok - https://github.com/karock
+
+    --- 6.3.0RC1 ---
 
     Fixed: