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+31 March 2010. Summary of changes for version 20100331:
+
+1) ACPI CA Core Subsystem:
+
+Completed a major update for the GPE support in order to improve support for 
+shared GPEs and to simplify both host OS and ACPICA code. Added a reference 
+count mechanism to support shared GPEs that require multiple device drivers. 
+Several external interfaces have changed. One external interface has been 
+removed. One new external interface was added. Most of the GPE external 
+interfaces now use the GPE spinlock instead of the events mutex (and the 
+Flags parameter for many GPE interfaces has been removed.) See the updated 
+ACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 
+Wysocki. ACPICA BZ 831.
+
+Changed:
+    AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus
+Removed:
+    AcpiSetGpeType
+New:
+    AcpiSetGpe
+
+Implemented write support for DataTable operation regions. These regions are 
+defined via the DataTableRegion() operator. Previously, only read support was 
+implemented. The ACPI specification allows DataTableRegions to be read/write, 
+however.
+
+Implemented a new subsystem option to force a copy of the DSDT to local 
+memory. Optionally copy the entire DSDT to local memory (instead of simply 
+mapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 
+the original DSDT, creating the need for this option. Default is FALSE, do 
+not copy the DSDT.
+
+Implemented detection of a corrupted or replaced DSDT. This change adds 
+support to detect a DSDT that has been corrupted and/or replaced from outside 
+the OS (by firmware). This is typically catastrophic for the system, but has 
+been seen on some machines. Once this problem has been detected, the DSDT 
+copy option can be enabled via system configuration. Lin Ming, Bob Moore.
+
+Fixed two problems with AcpiReallocateRootTable during the root table copy. 
+When copying the root table to the new allocation, the length used was 
+incorrect. The new size was used instead of the current table size, meaning 
+too much data was copied. Also, the count of available slots for ACPI tables 
+was not set correctly. Alexey Starikovskiy, Bob Moore.
+
+Example Code and Data Size: These are the sizes for the OS-independent 
+acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 
+debug version of the code includes the debug output trace mechanism and has a 
+much larger code and data size.
+
+  Previous Release:
+    Non-Debug Version:  87.5K Code, 18.4K Data, 105.9K Total
+    Debug Version:     163.4K Code, 51.1K Data, 214.5K Total
+  Current Release:
+    Non-Debug Version:  87.9K Code, 18.6K Data, 106.5K Total
+    Debug Version:     163.5K Code, 51.3K Data, 214.8K Total
+
+2) iASL Compiler/Disassembler and Tools:
+
+iASL: Implement limited typechecking for values returned from predefined 
+control methods. The type of any returned static (unnamed) object is now 
+validated. For example, Return(1). ACPICA BZ 786.
+
+iASL: Fixed a predefined name object verification regression. Fixes a problem 
+introduced in version 20100304. An error is incorrectly generated if a 
+predefined name is declared as a static named object with a value defined 
+using the keywords "Zero", "One", or "Ones". Lin Ming.
+
+iASL: Added Windows 7 support for the -g option (get local ACPI tables) by 
+reducing the requested registry access rights. ACPICA BZ 842.
+
+Disassembler: fixed a possible fault when generating External() statements. 
+Introduced in commit ae7d6fd: Properly handle externals with parent-prefix 
+(carat). Fixes a string length allocation calculation. Lin Ming.
+
+----------------------------------------
 04 March 2010. Summary of changes for version 20100304:
 
 1) ACPI CA Core Subsystem: