Removed tags (from the most recent ones): main, meta.

Recent suggested edits on tag-infos: main, meta.

Recent tag-info edits: main, meta.

Orphaned tag-wikis: main, meta.

Only today I noticed that (by mistake) I wrote "blacklisted" instead of "deprecated" in the title of the question on meta: What to do with the synonyms for the deprecated tags?

> It is possible to use various SEDE queries to search among the questions which have the deprecated tags. For example, this query returns the questions which have the given tag.**

> And you can add various further criteria to the query. (Although it is definitely less comfortable than searching directly on the site.)

> **In SEDE you can see the status when the database was last updated, which was before creating the synonym. (It is updated once a week.) As far as I can tell, the questions will be still visible in the SEDE queries even after the next update of SEDE. (Unless the moderators also merge the tags.)

> You can check some similar instances - the tags which were made synonyms without merging - on Mathematics, such as span or conditional-probability.

> (Here are related discussions on Mathematics Meta: Unable to add “span” tag to (linear algebra) question and Cannot add tag “conditional-probability”.)

As I have said that one can add various further criteria to the query, perhaps I could add at least some simple examples.

As mentioned above, SEDE query can return questions with a specific tag, and here is the same ordered by last activity.

I can search for questions in a given tag which contain a specific word or phrase. The same ordered by last activity.

All questions with deprecated tags. And ordered by last activity.

I can search for questions with some combination of tags, for example, abstract-algebra and gr.group-theory.

Or I can exclude some tag - for example, questions tagged abstract-algebra without gr.group-theory.