[azure-cli-ml] az extension add --name azure-cli-ml --version does not find most older extension versions

[marcindulak]

• If the issue is to do with Azure CLI 2.0 in-particular, create an issue here at Azure/azure-cli

Extension name (the extension in question)

azure-cli-ml

Description of issue (in as much detail as possible)

Describe the bug

It seems like az extension add --name azure-cli-ml --version does not find most older extension versions.

To Reproduce

az version 
{
  "azure-cli": "2.19.1",
  "azure-cli-core": "2.19.1",
  "azure-cli-telemetry": "1.0.6",
  "extensions": {}
}

az extension add --name azure-cli-ml --version 1.21.0 --debug
cli.knack.cli: Command arguments: ['extension', 'add', '--name', 'azure-cli-ml', '--version', '1.21.0', '--debug']
cli.knack.cli: __init__ debug log:
Enable color in terminal.
cli.knack.cli: Event: Cli.PreExecute []
cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [<function CLILogging.on_global_arguments at 0x7f42923e2840>, <function OutputProducer.on_global_arguments at 0x7f4291f35620>, <function CLIQuery.on_global_arguments at 0x7f4291cca8c8>]
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate []
cli.azure.cli.core: Modules found from index for 'extension': ['azure.cli.command_modules.extension']
cli.azure.cli.core: Loading command modules:
cli.azure.cli.core: Name                  Load Time    Groups  Commands
cli.azure.cli.core: extension                 0.003         1         7
cli.azure.cli.core: Total (1)                 0.003         1         7
cli.azure.cli.core: Loaded 1 groups, 7 commands.
cli.azure.cli.core: Found a match in the command table.
cli.azure.cli.core: Raw command  : extension add
cli.azure.cli.core: Command table: extension add
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [<function AzCliLogging.init_command_file_logging at 0x7f42910d9598>]
cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [<function register_global_subscription_argument.<locals>.add_subscription_parameter at 0x7f4291109620>, <function register_global_query_examples_argument.<locals>.register_query_examples at 0x7f4291068d08>]
cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad []
cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [<function register_ids_argument.<locals>.add_ids_arguments at 0x7f4291068d90>, <function register_cache_arguments.<locals>.add_cache_arguments at 0x7f4291068ea0>]
cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded []
cli.knack.cli: Event: CommandInvoker.OnPreParseArgs []
cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [<function OutputProducer.handle_output_argument at 0x7f4291f356a8>, <function CLIQuery.handle_query_parameter at 0x7f4291cca950>, <function register_global_query_examples_argument.<locals>.handle_example_parameter at 0x7f4291068c80>, <function register_ids_argument.<locals>.parse_ids_arguments at 0x7f4291068e18>]
urllib3.connectionpool: Starting new HTTPS connection (1): aka.ms:443
urllib3.connectionpool: https://aka.ms:443 "GET /azure-cli-extension-index-v1 HTTP/1.1" 301 0
urllib3.connectionpool: Starting new HTTPS connection (1): azcliextensionsync.blob.core.windows.net:443
urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607
cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl']
cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl']
cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl']
cli.azure.cli.core.extension.operations: Extension with version 1.21.0 not found
cli.azure.cli.core.util: azure.cli.core.util.handle_exception is called with an exception:
cli.azure.cli.core.util: Traceback (most recent call last):
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 82, in resolve_from_index
    chosen = [c for c in candidates_sorted if c['metadata']['version'] == target_version][0]
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 307, in add_extension
    source, ext_sha256 = resolve_from_index(extension_name, index_url=index_url, target_version=version)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 84, in resolve_from_index
    raise NoExtensionCandidatesError('Extension with version {} not found'.format(target_version))
azure.cli.core.extension._resolve.NoExtensionCandidatesError: Extension with version 1.21.0 not found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/az/lib/python3.6/site-packages/knack/cli.py", line 233, in invoke
    cmd_result = self.invocation.execute(args)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 664, in execute
    raise ex
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 727, in _run_jobs_serially
    results.append(self._run_job(expanded_arg, cmd_copy))
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 720, in _run_job
    six.reraise(*sys.exc_info())
  File "/opt/az/lib/python3.6/site-packages/six.py", line 703, in reraise
    raise value
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 698, in _run_job
    result = cmd_copy(params)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 331, in __call__
    return self.handler(*args, **kwargs)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 816, in default_command_handler
    return op(**command_args)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/command_modules/extension/custom.py", line 18, in add_extension_cmd
    version=version, upgrade=upgrade)
  File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 315, in add_extension
    raise CLIError(err)
knack.util.CLIError: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information.

cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information.
cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information.
cli.knack.cli: Event: Cli.PostExecute [<function AzCliLogging.deinit_cmd_metadata_logging at 0x7f42910d97b8>]

Installing the latest extension using the --version value works

az extension add --name azure-cli-ml --version 1.23.0
az version
{
  "azure-cli": "2.19.1",
  "azure-cli-core": "2.19.1",
  "azure-cli-telemetry": "1.0.6",
  "extensions": {
    "azure-cli-ml": "1.23.0"
  }
}

Expected behavior

The old versions are installable using the --version parameter.

Environment summary

cat /etc/*release | grep PRETTY
PRETTY_NAME="Ubuntu 18.04.5 LTS"

python --version
Python 3.7.10

/opt/az/bin/python3 --version
Python 3.6.10

Additional context

Most old extension versions are missing as candidates in the debug output

az extension add --name azure-cli-ml --version 1.21.0
...
urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607
cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl']
...

The installation of the other available version az extension add --name azure-cli-ml --version 1.5.0 fails due to a different issue https://github.com/Azure/azure-cli/issues/16856

[ghost]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @azureml-github.

Issue Details

---

- If the issue is to do with Azure CLI 2.0 in-particular, create an issue here at [Azure/azure-cli](https://github.com/Azure/azure-cli/issues) ### Extension name (the extension in question) azure-cli-ml ### Description of issue (in as much detail as possible) **Describe the bug** It seems like `az extension add --name azure-cli-ml --version` does not find most older extension versions. **To Reproduce** ``` az version { "azure-cli": "2.19.1", "azure-cli-core": "2.19.1", "azure-cli-telemetry": "1.0.6", "extensions": {} } ``` ``` az extension add --name azure-cli-ml --version 1.21.0 --debug cli.knack.cli: Command arguments: ['extension', 'add', '--name', 'azure-cli-ml', '--version', '1.21.0', '--debug'] cli.knack.cli: __init__ debug log: Enable color in terminal. cli.knack.cli: Event: Cli.PreExecute [] cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [, , ] cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate [] cli.azure.cli.core: Modules found from index for 'extension': ['azure.cli.command_modules.extension'] cli.azure.cli.core: Loading command modules: cli.azure.cli.core: Name Load Time Groups Commands cli.azure.cli.core: extension 0.003 1 7 cli.azure.cli.core: Total (1) 0.003 1 7 cli.azure.cli.core: Loaded 1 groups, 7 commands. cli.azure.cli.core: Found a match in the command table. cli.azure.cli.core: Raw command : extension add cli.azure.cli.core: Command table: extension add cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [] cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [.add_subscription_parameter at 0x7f4291109620>, .register_query_examples at 0x7f4291068d08>] cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad [] cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [.add_ids_arguments at 0x7f4291068d90>, .add_cache_arguments at 0x7f4291068ea0>] cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded [] cli.knack.cli: Event: CommandInvoker.OnPreParseArgs [] cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [, , .handle_example_parameter at 0x7f4291068c80>, .parse_ids_arguments at 0x7f4291068e18>] urllib3.connectionpool: Starting new HTTPS connection (1): aka.ms:443 urllib3.connectionpool: https://aka.ms:443 "GET /azure-cli-extension-index-v1 HTTP/1.1" 301 0 urllib3.connectionpool: Starting new HTTPS connection (1): azcliextensionsync.blob.core.windows.net:443 urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607 cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension.operations: Extension with version 1.21.0 not found cli.azure.cli.core.util: azure.cli.core.util.handle_exception is called with an exception: cli.azure.cli.core.util: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 82, in resolve_from_index chosen = [c for c in candidates_sorted if c['metadata']['version'] == target_version][0] IndexError: list index out of range During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 307, in add_extension source, ext_sha256 = resolve_from_index(extension_name, index_url=index_url, target_version=version) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 84, in resolve_from_index raise NoExtensionCandidatesError('Extension with version {} not found'.format(target_version)) azure.cli.core.extension._resolve.NoExtensionCandidatesError: Extension with version 1.21.0 not found During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/knack/cli.py", line 233, in invoke cmd_result = self.invocation.execute(args) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 664, in execute raise ex File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 727, in _run_jobs_serially results.append(self._run_job(expanded_arg, cmd_copy)) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 720, in _run_job six.reraise(*sys.exc_info()) File "/opt/az/lib/python3.6/site-packages/six.py", line 703, in reraise raise value File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 698, in _run_job result = cmd_copy(params) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 331, in __call__ return self.handler(*args, **kwargs) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 816, in default_command_handler return op(**command_args) File "/opt/az/lib/python3.6/site-packages/azure/cli/command_modules/extension/custom.py", line 18, in add_extension_cmd version=version, upgrade=upgrade) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 315, in add_extension raise CLIError(err) knack.util.CLIError: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.knack.cli: Event: Cli.PostExecute [] ``` Installing the latest extension using the `--version` value works ``` az extension add --name azure-cli-ml --version 1.23.0 az version { "azure-cli": "2.19.1", "azure-cli-core": "2.19.1", "azure-cli-telemetry": "1.0.6", "extensions": { "azure-cli-ml": "1.23.0" } } ``` **Expected behavior** The old versions are installable using the `--version` parameter. **Environment summary** ``` cat /etc/*release | grep PRETTY PRETTY_NAME="Ubuntu 18.04.5 LTS" ``` ``` python --version Python 3.7.10 ``` ``` /opt/az/bin/python3 --version Python 3.6.10 ``` **Additional context** Most old extension versions are missing as candidates in the debug output ``` az extension add --name azure-cli-ml --version 1.21.0 ... urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607 cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] ... ``` The installation of the other available version `az extension add --name azure-cli-ml --version 1.5.0` fails due to a different issue https://github.com/Azure/azure-cli/issues/16856

Author:	marcindulak
Assignees:	-
Labels:	`Machine Learning`, `Service Attention`
Milestone:	-

[yonzhan]

azure-cli-ml

[ghost]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @lostmygithubaccount.

Issue Details

---

- If the issue is to do with Azure CLI 2.0 in-particular, create an issue here at [Azure/azure-cli](https://github.com/Azure/azure-cli/issues) ### Extension name (the extension in question) azure-cli-ml ### Description of issue (in as much detail as possible) **Describe the bug** It seems like `az extension add --name azure-cli-ml --version` does not find most older extension versions. **To Reproduce** ``` az version { "azure-cli": "2.19.1", "azure-cli-core": "2.19.1", "azure-cli-telemetry": "1.0.6", "extensions": {} } ``` ``` az extension add --name azure-cli-ml --version 1.21.0 --debug cli.knack.cli: Command arguments: ['extension', 'add', '--name', 'azure-cli-ml', '--version', '1.21.0', '--debug'] cli.knack.cli: __init__ debug log: Enable color in terminal. cli.knack.cli: Event: Cli.PreExecute [] cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [, , ] cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate [] cli.azure.cli.core: Modules found from index for 'extension': ['azure.cli.command_modules.extension'] cli.azure.cli.core: Loading command modules: cli.azure.cli.core: Name Load Time Groups Commands cli.azure.cli.core: extension 0.003 1 7 cli.azure.cli.core: Total (1) 0.003 1 7 cli.azure.cli.core: Loaded 1 groups, 7 commands. cli.azure.cli.core: Found a match in the command table. cli.azure.cli.core: Raw command : extension add cli.azure.cli.core: Command table: extension add cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [] cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [.add_subscription_parameter at 0x7f4291109620>, .register_query_examples at 0x7f4291068d08>] cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad [] cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [.add_ids_arguments at 0x7f4291068d90>, .add_cache_arguments at 0x7f4291068ea0>] cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded [] cli.knack.cli: Event: CommandInvoker.OnPreParseArgs [] cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [, , .handle_example_parameter at 0x7f4291068c80>, .parse_ids_arguments at 0x7f4291068e18>] urllib3.connectionpool: Starting new HTTPS connection (1): aka.ms:443 urllib3.connectionpool: https://aka.ms:443 "GET /azure-cli-extension-index-v1 HTTP/1.1" 301 0 urllib3.connectionpool: Starting new HTTPS connection (1): azcliextensionsync.blob.core.windows.net:443 urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607 cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] cli.azure.cli.core.extension.operations: Extension with version 1.21.0 not found cli.azure.cli.core.util: azure.cli.core.util.handle_exception is called with an exception: cli.azure.cli.core.util: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 82, in resolve_from_index chosen = [c for c in candidates_sorted if c['metadata']['version'] == target_version][0] IndexError: list index out of range During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 307, in add_extension source, ext_sha256 = resolve_from_index(extension_name, index_url=index_url, target_version=version) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/_resolve.py", line 84, in resolve_from_index raise NoExtensionCandidatesError('Extension with version {} not found'.format(target_version)) azure.cli.core.extension._resolve.NoExtensionCandidatesError: Extension with version 1.21.0 not found During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/az/lib/python3.6/site-packages/knack/cli.py", line 233, in invoke cmd_result = self.invocation.execute(args) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 664, in execute raise ex File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 727, in _run_jobs_serially results.append(self._run_job(expanded_arg, cmd_copy)) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 720, in _run_job six.reraise(*sys.exc_info()) File "/opt/az/lib/python3.6/site-packages/six.py", line 703, in reraise raise value File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 698, in _run_job result = cmd_copy(params) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 331, in __call__ return self.handler(*args, **kwargs) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 816, in default_command_handler return op(**command_args) File "/opt/az/lib/python3.6/site-packages/azure/cli/command_modules/extension/custom.py", line 18, in add_extension_cmd version=version, upgrade=upgrade) File "/opt/az/lib/python3.6/site-packages/azure/cli/core/extension/operations.py", line 315, in add_extension raise CLIError(err) knack.util.CLIError: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.azure.cli.core.azclierror: No matching extensions for 'azure-cli-ml (1.21.0)'. Use --debug for more information. cli.knack.cli: Event: Cli.PostExecute [] ``` Installing the latest extension using the `--version` value works ``` az extension add --name azure-cli-ml --version 1.23.0 az version { "azure-cli": "2.19.1", "azure-cli-core": "2.19.1", "azure-cli-telemetry": "1.0.6", "extensions": { "azure-cli-ml": "1.23.0" } } ``` **Expected behavior** The old versions are installable using the `--version` parameter. **Environment summary** ``` cat /etc/*release | grep PRETTY PRETTY_NAME="Ubuntu 18.04.5 LTS" ``` ``` python --version Python 3.7.10 ``` ``` /opt/az/bin/python3 --version Python 3.6.10 ``` **Additional context** Most old extension versions are missing as candidates in the debug output ``` az extension add --name azure-cli-ml --version 1.21.0 ... urllib3.connectionpool: https://azcliextensionsync.blob.core.windows.net:443 "GET /index1/index.json HTTP/1.1" 200 763607 cli.azure.cli.core.extension._resolve: Candidates ['azure_cli_ml-1.23.0-py3-none-any.whl', 'azure_cli_ml-1.5.0-py2.py3-none-any.whl'] ... ``` The installation of the other available version `az extension add --name azure-cli-ml --version 1.5.0` fails due to a different issue https://github.com/Azure/azure-cli/issues/16856

Author:	marcindulak
Assignees:	-
Labels:	`ML-MLOps`, `Machine Learning`, `Service Attention`, `extension/ml`
Milestone:	-

[fengzhou-msft]

@marcindulak why do you need version 1.21.0? azure-cli-ml versions are manully updated and they only keep the latest version and an old version that is compatible with older versions of azure-cli. @j-so for awareness.

[marcindulak]

The old extension versions are still available at https://azurecliext.blob.core.windows.net/release

Version pinning, of azure-cli as well, is used for ci as an attempt to minimize potential breaking changes.

For pinning, an explicit installation from an url with az extension add --source is available https://github.com/Azure/azure-cli-extensions/issues/2992#issuecomment-777849355, but since the az extension add --version option exists it may support all versions as well.