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----------------------------------------
+18 May 2012. Summary of changes for version 20120518:
+
+
+1) ACPICA Core Subsystem:
+
+Added a new OSL interface, AcpiOsWaitEventsComplete. This interface is defined
+to block until asynchronous events such as notifies and GPEs have completed.
+Within ACPICA, it is only called before a notify or GPE handler is
+removed/uninstalled. It also may be useful for the host OS within related
+drivers such as the Embedded Controller driver. See the ACPICA reference for
+additional information. ACPICA BZ 868.
+
+ACPI Tables: Added a new error message for a possible overflow failure during
+the conversion of FADT 32-bit legacy register addresses to internal common 64-
+bit GAS structure representation. The GAS has a one-byte "bit length" field,
+thus limiting the register length to 255 bits. ACPICA BZ 953.
+
+Example Code and Data Size: These are the sizes for the OS-independent
+acpica.lib produced by the Microsoft Visual C++ 9.0 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: 92.9K Code, 25.0K Data, 117.9K Total
+ Debug Version: 172.6K Code, 73.4K Data, 246.0K Total
+ Current Release:
+ Non-Debug Version: 93.0K Code, 25.1K Data, 118.1K Total
+ Debug Version: 172.7K Code, 73.6K Data, 246.3K Total
+
+
+2) iASL Compiler/Disassembler and Tools:
+
+iASL: Added the ACPI 5.0 "PCC" keyword for use in the Register() ASL macro.
+This keyword was added late in the ACPI 5.0 release cycle and was not
+implemented until now.
+
+Disassembler: Added support for Operation Region externals. Adds missing
+support for operation regions that are defined in another table, and
+referenced locally via a Field or BankField ASL operator. Now generates the
+correct External statement.
+
+Disassembler: Several additional fixes for the External() statement generation
+related to some ASL operators. Also, order the External() statements
+alphabetically in the disassembler output. Fixes the External() generation for
+the Create* field, Alias, and Scope operators:
+ 1) Create* buffer field operators - fix type mismatch warning on disassembly
+ 2) Alias - implement missing External support
+ 3) Scope - fix to make sure all necessary externals are emitted.
+
+iASL: Improved pathname support. For include files, merge the prefix pathname
+with the file pathname and eliminate unnecessary components. Convert
+backslashes in all pathnames to forward slashes, for readability. Include file
+pathname changes affect both #include and Include() type operators.
+
+iASL/DTC/Preprocessor: Gracefully handle early EOF. Handle an EOF at the end
+of a valid line by inserting a newline and then returning the EOF during the
+next call to GetNextLine. Prevents the line from being ignored due to EOF
+condition.
+
+iASL: Implemented some changes to enhance the IDE support (-vi option.) Error
+and Warning messages are now correctly recognized for both the source code
+browser and the global error and warning counts.
+
+----------------------------------------
20 April 2012. Summary of changes for version 20120420:
-This release is available at www.acpica.org/downloads.
-The ACPI 5.0 specification is available at www.acpi.info.
1) ACPICA Core Subsystem:
@@ -68,8 +130,6 @@ several extraneous "unrecognized operator" messages.
----------------------------------------
20 March 2012. Summary of changes for version 20120320:
-This release is available at www.acpica.org/downloads.
-The ACPI 5.0 specification is available at www.acpi.info.
1) ACPICA Core Subsystem:
@@ -160,8 +220,6 @@ Versions supported:
----------------------------------------
15 February 2012. Summary of changes for version 20120215:
-This release is available at www.acpica.org/downloads.
-The ACPI 5.0 specification is available at www.acpi.info.
1) ACPICA Core Subsystem:
@@ -252,8 +310,6 @@ specification.
----------------------------------------
11 January 2012. Summary of changes for version 20120111:
-This release is available at www.acpica.org/downloads.
-The ACPI 5.0 specification is available at www.acpi.info.
1) ACPICA Core Subsystem: