WeChat has rolled out a highly anticipated feature update for its Channels platform, allowing users to modify video captions and cover images post-publication.
可对三个月内发布的视频发起修改；
用户可点击视频的“转发”按钮选择“修改”进入文案修改页面，支持修改20个字；
点击“封面设置”可以更换封面，还支持预览查看封面效果。
Users can now edit videos published within the past three months on WeChat Channels.
To modify the caption, simply tap the "Forward" button on the desired video and select "Edit", where you can change up to 20 characters in the description.
For cover image adjustments, tap "Cover Settings" to upload a new image and preview how it will appear before finalizing.
温馨提示：目前，仅支持修改一次，如需修改封面、文案，需同时确认。
It's important to note that edits can only be made once per video, and any changes to both the caption and cover must be confirmed together in a single session.
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