slackapi/python-slack-sdk v2.6.0rc2

on GitHub

The version is available as a pre-release on PyPI: https://pypi.org/project/slackclient/2.6.0rc2/
Refer to v2.6.0 milestone to know the complete list of the issues resolved by this release.

New Features

1. [Block Kit] #659 Add complete supports for Block Kit components and fixed a few existing bugs as well (#500 #519 #623 #632 #635 #639 #676) - Thanks @seratch @diurnalist @ruberVulpes @jeremyschulman @e271828- @RodneyU215
2. [Signature] #686 Add slack.signature.SignatureVerifier for request verification - Thanks @seratch
3. [WebClient] #682 Add missing Grid admin APIs (admin.usergroups.*, admin.users.*, admin.apps.*) - Thanks @stevengill @seratch

Updates

1. [WebClient][RTMClient] Fixed a bunch of the currency issues this SDK had (#429 #463 #492 #497 #530 #558 #569 #605 #613 #619 #626 #630 #631 #633 #669) - Thanks @seratch @aaguilartablada @aoberoi @stevengill @marshallino16
2. [WebClient] #681 #560 Enable using bool values for request parameters - Thanks @roman-kachanovsky @seratch
3. [WebClient] #661 #678 Improve handling of required "ids" parameters (e.g., channel_ids, users) - Thanks @seratch
4. [WebClient] #680 Add non-conversation API deprecation warnings - Thanks @seratch
5. [WebClient] #671 #670 Enable passing None values for request parameters (they used to result in errors) - Thanks @yuji38kwmt @seratch
6. [WebClient] #673 Fix #672 files.upload fails with a filepath containing multi byte chars - Thanks @yuji38kwmt @seratch
7. [WebClient] #656 Fix #594 preview_image for files.remote.add API method is not properly supported - Thanks @Eothred @seratch
8. [Maintenance] #618 Add py.typed file to package distribution - Thanks @jkillian
9. [WebClient] #599 Strip token string parameters of whitespace - Thanks @TheFrozenFire
10. [WebClient] #692 Fix superfluous_charset warnings since v2.4.0 - Thanks @seratch