Suggestions for new keywords added in 3.10 appear in older versions

[NCPlayz]

Describe the bug
The match and case soft keywords added with the Structural Pattern Matching PEP 634 seem to be given as suggestions when typing an identifier, even if the current activated Python Environment doesn't accept the keyword. But, Pyright correctly complains that match statements require 3.10 or newer when writing a match statement.

To Reproduce

1. Type the first letters of match or case
2. Notice that the keywords are shown high on the list.

Expected behavior
Ideally, I don't think it should suggest keywords that aren't available on versions the Python Environment is using.

Screenshots or Code

VS Code extension or command-line
VS Code - Pylance: v2021.8.2 (Python 3.9.6)

[erictraut]

This is related to a broader discussion about suggesting keywords. See #1712 for a discussion. Currently, we don't perform any filtering of suggested keywords based on context.

In any case, I'm going to transfer this issue to the pylance-release repo because it's not a core type checking issue.

[jakebailey]

It's definitely like #1712, but I think that it would make sense to have different lists of keywords per Python version, since we know that already from the config anyway and can just not offer match and case as keywords for <3.10.

[jakebailey]

The next release will conditionally offer async/await and match/case based on the current Python version.

Further discussion on contextual keywords can go on #1557.

[jakebailey]

This issue has been fixed in version 2021.7.0, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/main/CHANGELOG.md#202190-1-september-2021