Mladen Jakovljević

**Description:** This PR improves modules template by marking deprecated items with a strikethrough. For example, this is how [`/api/index`](https://rxjs.dev/api/index) page looks like now: With this PR, deprecated items are now...

**Description:** Added documentation and an example to the `TapObserver`. Also, in regards to #6943, I didn't use `export type` syntax, but I used only `export` syntax which made `TapObserver` page...

docs(exhaustAll): fix marble diagram

3

**Description:** This PR fixes exhaustAll marble diagram. Details described in #6909.  @timdp, the latest `ghosts` parameter feature works like a charm, thank you for the quick work on this...

**Description:** Since I proposed a `TapObserver` documentation page PR (#6944), I thought that we should document the Observer interface [page](https://rxjs.dev/api/index/interface/Observer) as well. Although there are [a guide](https://rxjs.dev/guide/observer) and [a glossary](https://rxjs.dev/guide/glossary-and-semantics)...

**Description:** Interfaces exported from the `internal/operators` module get marked as operators. Fix this issue by checking the doc type - only docs that originate as functions are operators. **Related issue...

chore: include docs build scripts in pipeline + fix scripts

3

**Description:** To avoid issues that we had multiple times so far where the docs build was broken after some PR merges, I'm adding running docs build and generation scripts to...

Update marble diagram images for operators that accept "notifiers"

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Since RxJS v7 has been released, many operators that accept "notifiers" have been adjusted to listen to only "next" notifications. This has become mandatory as per [RxJS Core Semantics](https://github.com/ReactiveX/rxjs/blob/7dd7f3c4ab/docs_app/content/guide/core-semantics.md) guide:...

**Description:** This PR adds [`UnaryFunction`](https://rxjs.dev/api/index/interface/UnaryFunction) docs. **Related issue (if exists):** None

Add "mergeMap vs exhaustMap vs switchMap vs concatMap" to left menu

2

Hi there, Is it possible to add [mergeMap vs exhaustMap vs switchMap vs concatMap](https://thinkrx.io/rxjs/mergeMap-vs-exhaustMap-vs-switchMap-vs-concatMap/) page to the left menu? Thanks

feat(delayWhen): `delayWhen`'s `delayDurationSelector` should support `ObservableInput`

2

**Description:** This PR adds support for `delayWhen`'s `delayDurationSelector` to accept `ObservableInput` as a return type. Since `subscriptionDelay` is deprecated, I didn't add support for `ObservableInput` for that parameter. **Related issue...