diff --git a/documentation/current/eiffelstudio/eiffelstudio-reference/compiler/compiler-history/eiffelstudio-6-compiler-history/major-changes-between-ise-eiffel-62-and-ise-eiffel-63.wiki b/documentation/current/eiffelstudio/eiffelstudio-reference/compiler/compiler-history/eiffelstudio-6-compiler-history/major-changes-between-ise-eiffel-62-and-ise-eiffel-63.wiki
index 538925e0..311e1800 100644
--- a/documentation/current/eiffelstudio/eiffelstudio-reference/compiler/compiler-history/eiffelstudio-6-compiler-history/major-changes-between-ise-eiffel-62-and-ise-eiffel-63.wiki
+++ b/documentation/current/eiffelstudio/eiffelstudio-reference/compiler/compiler-history/eiffelstudio-6-compiler-history/major-changes-between-ise-eiffel-62-and-ise-eiffel-63.wiki
@@ -7,8 +7,10 @@
{{seealso|[[Differences between standard ECMA-367 and Eiffel Software implementation|Differences between standard ECMA-367 and Eiffel Software implementation]] }}
==Improvements==
-
+* Improved speed of compiler by about 10% overall.
+* Reduced memory usage at runtime of Eiffel applications.
==Changes==
+* Changed the way files are opened on Windows by ensuring that they cannot be inherited by child processes. This was necessary since one would need to wait for the child process to exit to remove files owned by the parent process.
==Bug fixes==
@@ -17,6 +19,7 @@
===Compiler issues===
===Runtime/code generation issues===
+* When registering externally created threads, make sure that the runtime does not exit them when no more Eiffel code needs to be run as it must be done by the code that created it. Also made sure that the runtime per thread data are reset to 0 to ensure that we can register/unregister the external thread as many times as needed.
===Store/Retrieve issues===
diff --git a/documentation/current/eiffelstudio/eiffelstudio-reference/eiffelstudio-release-notes/eiffelstudio-6-release-notes/release-notes-eiffelstudio-63.wiki b/documentation/current/eiffelstudio/eiffelstudio-reference/eiffelstudio-release-notes/eiffelstudio-6-release-notes/release-notes-eiffelstudio-63.wiki
index 26c1cdfe..f9ea9184 100644
--- a/documentation/current/eiffelstudio/eiffelstudio-reference/eiffelstudio-release-notes/eiffelstudio-6-release-notes/release-notes-eiffelstudio-63.wiki
+++ b/documentation/current/eiffelstudio/eiffelstudio-reference/eiffelstudio-release-notes/eiffelstudio-6-release-notes/release-notes-eiffelstudio-63.wiki
@@ -21,7 +21,7 @@
===Changes===
===Bug fixes===
-* Code completion works even if the is is missing.
+* Code completion works even if the obsolete is keyword is missing.
* Fixed an installation issue of the enterprise/evaluation release of EiffelStudio on Windows Vista.
* Properly refreshes the Feature tool after a save or a compilation.
* Fixed browsing of .NET classes in EiffelStudio
@@ -55,8 +55,6 @@
===EiffelVision2===
* [[Revisions and Bug Fixes|Click here for EiffelVision2 release notes.]]
-===EiffelVision2===
-
[[EiffelStudio release notes|Click here to check out what was new in other versions]]