• Remove redundant ext-json requirement

• Add UNKNOWN_TO_SDK value to enums that is used when the API returns an value that is not (or not yet) known by the AsyncAws

• Drop support for PHP versions lower than 8.2

• Apply new CodingStandard from latest php-cs-fixer.
• Use a more stable sorting for the list of generated region metadata

• AWS api-change: rework regions definition

• Sort exception alphabetically.

• AWS api-change: Added us-isof-east-1 and us-isof-south-1 regions
• AWS api-change: Added fips-ca-central-1 region

• AWS api-change: Added fips-us-iso-east-1 region

• Enable compiler optimization for the sprintf function.

• Add Accept: application/json header in request to fix incompatibility with 3rd party providers

• AWS enhancement: Documentation updates.

• AWS enhancement: Documentation updates.

• Avoid overriding the exception message with the raw message

• Improve parameter type and return type in phpdoc

• AWS enhancement: Documentation updates.
• AWS api-change: Add reason and detail in InvalidRequestException exception

First version