Since the last update, this version introduces several bugfixes, drops support for Tweetdeck and includes permissions for the domain x.com.

Version 1.3 introduces options to check the text of tweets for potential accessibility issues, giving suggestion on how to avoid those issues.
Some bugs relating to GIF alt text and hidden images have been fixed.

A small change to fix potential placement issues.

Version 1.1 adds the option to hide tweets from accounts using an NFT profile pic.

Improved positioning and size of alt text in tweets and quote tweets.
Fixed a bug duplicating the alt text in some occasions.
Skipping certain columns in TweetDeck that don't accurately add alt text even when available (like notifications and scheduled tweets).

The extension should now function properly on all supported display languages on Twitter, it will also show predefined descriptions on GIFs chosen from the GIF selector.

Bug fix: GIFs are now also checked in case autoplay is turned on.
Improvement: Alt Or Not now supports the beta of TweetDeck.
Experimental Feature: Option to make scrollbars less intrusive, especially noticable on the beta of TweetDeck.
Minor adjustment: Links in the settings page now open correctly in new tab.

Version 0.7 now also runs on mobile.twitter.com and has a minor optimization.

Changes for version 0.6:
Added options to customize the extension, all functions can be turn off individually
Added an option to disable the tweet button when images miss a description while writing a tweet
Added an optional light mode to the displayed alt text
Fixed unintentially flagging videos as images missing description while writing a tweet
Made sure all tweet buttons are synchronised when composing a thread
Code restructured and further optimized

Starting with version 0.5 it also warns users when images in a tweet have no alt text when tweeting.

Version 0.4 improves the style on the displayed alt text for improved readability.

Version 0.3 fixes an issue preventing alt text from displaying properly on some quote tweets on Twitter.

Version 0.2 has some optimizations and the following bug fixes:
Prevented "null" appearing below YouTube previews on Tweetdeck
Fixed positioning of alt text on Twitter on tweets with multiple described images
Fixed positioning of alt text on Twitter on quote tweets with described images in the tweet and quoted tweet