prepare next release (#1536)

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log
 
-## NOT RELEASED
+## 2.0.0
 
 ### BC-BREAK
 
@@ -11,11 +11,16 @@
 - The return type for `\AsyncAws\Athena\ValueObject\SessionStatistics::getDpuExecutionInMillis` uses `int` instead of `string` to reflect the AWS type.
 - The return type for `\AsyncAws\Athena\ValueObject\WorkGroupConfiguration::getBytesScannedCutoffPerQuery` uses `int` instead of `string` to reflect the AWS type.
 
-
 ### Added
 
 - Added `me-central-1` region
 - AWS api-change: Add support for the `ap-south-2`, `ap-southeast-4`, `eu-central-2` and `eu-south-2` regions
+- Avoid overriding the exception message with the raw message
+- Use int as the PHP representation of long fields in generated code
+
+### Changed
+
+- Improve parameter type and return type in phpdoc
 
 ## 1.0.0