chore(docs): add warning to all docs files that this is Rx 4 and not 5 (

Reactive-Extensions#1503) There has been a LOT of confusion by RxJS users when they find the RxJS v4 docs and not v5 docs. This is to get rid of that confusion. Also updated the readme to no longer say v5 is beta, v6 will be beta pretty soon. ;)
raphaelgera · Jul 18, 2017 · 6770d24 · 6770d24
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diff --git a/doc/api/config/readme.md b/doc/api/config/readme.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 # Reactive Extensions Configuration #
 
 Configuration information for the Reactive Extensions for JavaScript

diff --git a/doc/api/core/notification.md b/doc/api/core/notification.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 # Notification object #
 
 Represents a notification to an observer.

diff --git a/doc/api/core/observable.md b/doc/api/core/observable.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 # Observable object #
 
 The Observable object represents a push based collection.

diff --git a/doc/api/core/observer.md b/doc/api/core/observer.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 # Observer object #
 
 The Observer object provides support for push-style iteration over an observable sequence.

diff --git a/doc/api/core/operators/amb.md b/doc/api/core/operators/amb.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.amb(...args)` [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/amb.js "View in source")
 
 Propagates the observable sequence or Promise that reacts first. "amb" stands for [ambiguous](http://blogs.msdn.com/b/jeffva/archive/2009/11/18/amb-materialize-and-dematerialize.aspx).

diff --git a/doc/api/core/operators/ambproto.md b/doc/api/core/operators/ambproto.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### <a id="rxobservableprototypeambrightsource"></a>`Rx.Observable.prototype.amb(rightSource)`
 <a href="#rxobservableprototypeambrightsource">#</a> [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/ambproto.js "View in source")
 

diff --git a/doc/api/core/operators/and.md b/doc/api/core/operators/and.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.and(rightSource)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/and.js "View in source")
 

diff --git a/doc/api/core/operators/asobservable.md b/doc/api/core/operators/asobservable.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.asObservable()` [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/asobservable.js "View in source")
 
 Hides the identity of an observable sequence.

diff --git a/doc/api/core/operators/average.md b/doc/api/core/operators/average.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.average([selector], [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/average.js "View in source")
 

diff --git a/doc/api/core/operators/buffer.md b/doc/api/core/operators/buffer.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.buffer()`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.coincidence.js#L572-L585 "View in source")
 

diff --git a/doc/api/core/operators/bufferwithcount.md b/doc/api/core/operators/bufferwithcount.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.bufferWithCount(count, [skip])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/bufferwithcount.js)
 

diff --git a/doc/api/core/operators/bufferwithtime.md b/doc/api/core/operators/bufferwithtime.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.bufferWithTime(timeSpan, [timeShift | scheduler], [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/bufferwithtime.js "View in source")
 

diff --git a/doc/api/core/operators/bufferwithtimeorcount.md b/doc/api/core/operators/bufferwithtimeorcount.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.bufferWithTimeOrCount(timeSpan, count, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/bufferwithtimeorcount.js "View in source")
 

diff --git a/doc/api/core/operators/case.md b/doc/api/core/operators/case.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.case(selector, sources, [elseSource|scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/case.js "View in source")
 

diff --git a/doc/api/core/operators/catch.md b/doc/api/core/operators/catch.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.catch(...args)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/catch.js "View in source")
 

diff --git a/doc/api/core/operators/catchproto.md b/doc/api/core/operators/catchproto.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.catch(second | handler)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.js#L3107-L3112 "View in source")
 

diff --git a/doc/api/core/operators/combinelatest.md b/doc/api/core/operators/combinelatest.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.combineLatest(...args, [resultSelector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/combinelatest.js "View in source")
 

diff --git a/doc/api/core/operators/combinelatestproto.md b/doc/api/core/operators/combinelatestproto.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.combineLatest(...args, [resultSelector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/combinelatestproto.js "View in source")
 

diff --git a/doc/api/core/operators/concat.md b/doc/api/core/operators/concat.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.concat(...args)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/concat.js "View in source")
 

diff --git a/doc/api/core/operators/concatall.md b/doc/api/core/operators/concatall.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.concatAll()` ###
 ### `Rx.Observable.prototype.concatObservable()` **DEPRECATED** ###
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/concatall.js "View in source")

diff --git a/doc/api/core/operators/concatmap.md b/doc/api/core/operators/concatmap.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.concatMap(selector, [resultSelector], [thisArg])`
 ### `Rx.Observable.prototype.selectConcat(selector, [resultSelector], [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/concatmap.js "View in source")

diff --git a/doc/api/core/operators/concatmapobserver.md b/doc/api/core/operators/concatmapobserver.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.concatMapObserver(onNext, onError, onCompleted, [thisArg])`
 ### `Rx.Observable.prototype.selectConcatObserver(onNext, onError, onCompleted, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/concatmapobserver.js "View in source")

diff --git a/doc/api/core/operators/concatproto.md b/doc/api/core/operators/concatproto.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.concat(...args)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/concatproto.js "View in source")
 

diff --git a/doc/api/core/operators/connect.md b/doc/api/core/operators/connect.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### <a id="connectableobservableprototypeconnect"></a>`ConnectableObservable.prototype.connect()`
 <a href="#connectableobservableprototypeconnect">#</a> [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/dist/rx.binding.js#L504 "View in source")
 

diff --git a/doc/api/core/operators/controlled.md b/doc/api/core/operators/controlled.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.controlled([enableQueue])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/backpressure/controlled.js "View in source")
 

diff --git a/doc/api/core/operators/count.md b/doc/api/core/operators/count.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.count([predicate], [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/count.js "View in source")
 

diff --git a/doc/api/core/operators/create.md b/doc/api/core/operators/create.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.create(subscribe)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/create.js "View in source")
 

diff --git a/doc/api/core/operators/debounce.md b/doc/api/core/operators/debounce.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.debounce(dueTime, [scheduler])` ###
 ### `Rx.Observable.prototype.debounce(durationSelector)` ###
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/debounce.js "View in source")

diff --git a/doc/api/core/operators/defaultifempty.md b/doc/api/core/operators/defaultifempty.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.defaultIfEmpty([defaultValue])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/defaultifempty.js "View in source")
 

diff --git a/doc/api/core/operators/defer.md b/doc/api/core/operators/defer.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.defer(observableFactory)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/defer.js "View in source")
 

diff --git a/doc/api/core/operators/delay.md b/doc/api/core/operators/delay.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.delay(dueTime, [scheduler])`
 ### `Rx.Observable.prototype.delay([subscriptionDelay], delayDurationSelector`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/delay.js "View in source")

diff --git a/doc/api/core/operators/delaysubscription.md b/doc/api/core/operators/delaysubscription.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.delaySubscription(dueTime, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/delaysubscription.js "View in source")
 

diff --git a/doc/api/core/operators/dematerialize.md b/doc/api/core/operators/dematerialize.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.dematerialize()`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/dematerialize.js "View in source")
 

diff --git a/doc/api/core/operators/distinct.md b/doc/api/core/operators/distinct.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.distinct([keySelector], [comparer])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/distinct.js "View in source")
 

diff --git a/doc/api/core/operators/distinctuntilchanged.md b/doc/api/core/operators/distinctuntilchanged.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.distinctUntilChanged([keySelector], [comparer])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/distinctuntilchanged.js "View in source")
 

diff --git a/doc/api/core/operators/do.md b/doc/api/core/operators/do.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.do([observer] | [onNext], [onError], [onCompleted])` ###
 ### `Rx.Observable.prototype.tap([observer] | [onNext], [onError], [onCompleted])` ###
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/tap.js "View in source")

diff --git a/doc/api/core/operators/dooncompleted.md b/doc/api/core/operators/dooncompleted.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.doOnCompleted(onCompleted, [thisArg])`
 ### `Rx.Observable.prototype.tapOnCompleted(onCompleted, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/tap.js "View in source")

diff --git a/doc/api/core/operators/doonerror.md b/doc/api/core/operators/doonerror.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.doOnError(onError, [thisArg])`
 ### `Rx.Observable.prototype.tapOnError(onError, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/tap.js "View in source")

diff --git a/doc/api/core/operators/doonnext.md b/doc/api/core/operators/doonnext.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.doOnNext(onNext, [thisArg])`
 ### `Rx.Observable.prototype.tapOnNext(onNext, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/tap.js "View in source")

diff --git a/doc/api/core/operators/dowhile.md b/doc/api/core/operators/dowhile.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.doWhile(condition)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/dowhile.js "View in source")
 

diff --git a/doc/api/core/operators/elementat.md b/doc/api/core/operators/elementat.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.elementAt(index, [defaultValue])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/elementat.js "View in source")
 

diff --git a/doc/api/core/operators/empty.md b/doc/api/core/operators/empty.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.empty([scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/empty.js "View in source")
 

diff --git a/doc/api/core/operators/every.md b/doc/api/core/operators/every.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.every(predicate, [thisArg])` ##
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/every.js "View in source")
 

diff --git a/doc/api/core/operators/expand.md b/doc/api/core/operators/expand.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.expand(selector, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/expand.js "View in source")
 

diff --git a/doc/api/core/operators/finally.md b/doc/api/core/operators/finally.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.finally(action)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/finally.js "View in source")
 

diff --git a/doc/api/core/operators/find.md b/doc/api/core/operators/find.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.find(predicate, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/find.js)
 Searches for an element that matches the conditions defined by the specified predicate, and returns the first occurrence within the entire Observable sequence.

diff --git a/doc/api/core/operators/findindex.md b/doc/api/core/operators/findindex.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.findIndex(predicate, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/findindex.js "View in source")
 

diff --git a/doc/api/core/operators/first.md b/doc/api/core/operators/first.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.first([predicate], [thisArg], [defaultValue])`
 ### `Rx.Observable.prototype.first([settings])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/first.js "View in source")

diff --git a/doc/api/core/operators/flatmapfirst.md b/doc/api/core/operators/flatmapfirst.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.flatMapFirst(selector, [thisArg])`
 ### `Rx.Observable.prototype.selectSwitchFirst(selector, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/flatmapfirst.js "View in source")

diff --git a/doc/api/core/operators/flatmaplatest.md b/doc/api/core/operators/flatmaplatest.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.flatMapLatest(selector, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/flatmaplatest.js "View in source")
 

diff --git a/doc/api/core/operators/flatmapobserver.md b/doc/api/core/operators/flatmapobserver.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.flatMapObserver(onNext, onError, onCompleted, [thisArg])`
 ### `Rx.Observable.prototype.selectManyObserver(onNext, onError, onCompleted, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/selectmanyobserver.js "View in source")

diff --git a/doc/api/core/operators/flatmapwithmaxconcurrent.md b/doc/api/core/operators/flatmapwithmaxconcurrent.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.flatMapWithMaxConcurrent(maxConcurrent, selector, [resultSelector], [thisArg])`
 ### `Rx.Observable.prototype.selectWithMaxConcurrent(maxConcurrent, selector, [resultSelector], [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/flatmapwithmaxconcurrent.js "View in source")

diff --git a/doc/api/core/operators/for.md b/doc/api/core/operators/for.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.for(sources, resultSelector, [thisArg])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/tests/observable/for.js "View in source")
 

diff --git a/doc/api/core/operators/forkjoin.md b/doc/api/core/operators/forkjoin.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.forkJoin(...args, [resultSelector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/tests/observable/forkjoin.js "View in source")
 

diff --git a/doc/api/core/operators/forkjoinproto.md b/doc/api/core/operators/forkjoinproto.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.prototype.forkJoin(...args, [resultSelector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/forkjoinproto.js "View in source")
 

diff --git a/doc/api/core/operators/from.md b/doc/api/core/operators/from.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.from(iterable, [mapFn], [thisArg], [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/from.js 'View in source')
 

diff --git a/doc/api/core/operators/fromarray.md b/doc/api/core/operators/fromarray.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### ** DEPRECATED - Use [Rx.Observable.from](./from.md) instead** `Rx.Observable.fromArray(array, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/fromarray.js "View in source")
 

diff --git a/doc/api/core/operators/fromcallback.md b/doc/api/core/operators/fromcallback.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.fromCallback(func, [context], [selector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/fromcallback.js "View in source")
 

diff --git a/doc/api/core/operators/fromevent.md b/doc/api/core/operators/fromevent.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.fromEvent(element, eventName, [selector], [options])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/fromevent.js "View in source")
 

diff --git a/doc/api/core/operators/fromeventpattern.md b/doc/api/core/operators/fromeventpattern.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.fromEventPattern(addHandler, [removeHandler], [selector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/fromeventpattern.js "View in source")
 

diff --git a/doc/api/core/operators/fromnodecallback.md b/doc/api/core/operators/fromnodecallback.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.fromNodeCallback(func, [context], [selector])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/fromnodecallback.js "View in source")
 

diff --git a/doc/api/core/operators/frompromise.md b/doc/api/core/operators/frompromise.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.fromPromise(promise)`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/perf/operators/frompromise.js "View in source")
 

diff --git a/doc/api/core/operators/generate.md b/doc/api/core/operators/generate.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.generate(initialState, condition, iterate, resultSelector, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/generate.js "View in source")
 

diff --git a/doc/api/core/operators/generatewithabsolutetime.md b/doc/api/core/operators/generatewithabsolutetime.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.generateWithAbsoluteTime(initialState, condition, iterate, resultSelector, timeSelector, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/generatewithabsolutetime.js "View in source")
 

diff --git a/doc/api/core/operators/generatewithrelativetime.md b/doc/api/core/operators/generatewithrelativetime.md
@@ -1,3 +1,4 @@
+# This is RxJS v 4. [Find the latest version here](https://github.com/reactivex/rxjs)
 ### `Rx.Observable.generateWithRelativeTime(initialState, condition, iterate, resultSelector, timeSelector, [scheduler])`
 [&#x24C8;](https://github.com/Reactive-Extensions/RxJS/blob/master/src/core/linq/observable/generatewithrelativetime.js "View in source")