Add warning in changelog regarding upgrade to 4.0 and index creation (#6469)

* bump version

* add the special note

* remove new version & add note about indexes to 4.0.2 & 4.0.0

* Update package-lock.json

* Update package.json

* add line break

* remove double space

Co-authored-by: Tom Fox <[email protected]>

Author: TomWFox

CHANGELOG.md

@@ -5,16 +5,26 @@
 
 ### 4.1.0
 [Full Changelog](https://github.com/parse-community/parse-server/compare/4.0.2...4.1.0)
+
 _SECURITY RELEASE_: see [advisory](https://github.com/parse-community/parse-server/security/advisories/GHSA-h4mf-75hf-67w4) for details
 - SECURITY FIX: Patch Regex vulnerabilities. See [3a3a5ee](https://github.com/parse-community/parse-server/commit/3a3a5eee5ffa48da1352423312cb767de14de269). Special thanks to [W0lfw00d](https://github.com/W0lfw00d) for identifying and [responsibly reporting](https://github.com/parse-community/parse-server/blob/master/SECURITY.md) the vulnerability. Thanks to [Antonio Davi Macedo Coelho de Castro](https://github.com/davimacedo) for the speedy fix.
 
 ### 4.0.2
 [Full Changelog](https://github.com/parse-community/parse-server/compare/4.0.1...4.0.2)
+
 __BREAKING CHANGES:__
 1. Remove Support for Mongo 3.2 & 3.4. The new minimum supported version is Mongo 3.6.
-2. Change username and email validation to be case insensitive. This change should be transparent in most use cases. The validation behavior should now behave 'as expected'. See [#6414](https://github.com/parse-community/parse-server/pull/6414) for details.
+2. Change username and email validation to be case insensitive. This change should be transparent in most use cases. The validation behavior should now behave 'as expected'. See [#5634](https://github.com/parse-community/parse-server/pull/5634) for details.
+
+> __Special Note on Upgrading to Parse Server 4.0.0 and above__
+> 
+> In addition to the breaking changes noted above, [#5634](https://github.com/parse-community/parse-server/pull/5634) introduces a two new case insensitive indexes on the `User` collection. Special care should be taken when upgrading to this version to ensure that:
+> 
+> 1. The new indexes can be successfully created (see issue [#6465](https://github.com/parse-community/parse-server/issues/6465) for details on a potential issue for your installation).
+> 
+> 2. Care is taken ensure that there is adequate compute capacity to create the index in the background while still servicing requests.
 
-FIX: attempt to get travis to deploy to npmjs again.  See [#6475](https://github.com/parse-community/parse-server/pull/6457). Thanks to [Arthur Cinader](https://github.com/acinader).
+- FIX: attempt to get travis to deploy to npmjs again. See [#6475](https://github.com/parse-community/parse-server/pull/6457). Thanks to [Arthur Cinader](https://github.com/acinader).
 
 ### 4.0.1
 [Full Changelog](https://github.com/parse-community/parse-server/compare/4.0.0...4.0.1)
@@ -23,6 +33,15 @@ FIX: attempt to get travis to deploy to npmjs again.  See [#6475](https://github
 
 ### 4.0
 [Full Changelog](https://github.com/parse-community/parse-server/compare/3.10.0...4.0.0)
+
+> __Special Note on Upgrading to Parse Server 4.0.0 and above__
+> 
+> In addition to the breaking changes noted below, [#5634](https://github.com/parse-community/parse-server/pull/5634) introduces a two new case insensitive indexes on the `User` collection. Special care should be taken when upgrading to this version to ensure that:
+> 
+> 1. The new indexes can be successfully created (see issue [#6465](https://github.com/parse-community/parse-server/issues/6465) for details on a potential issue for your installation).
+> 
+> 2. Care is taken ensure that there is adequate compute capacity to create the index in the background while still servicing requests.
+
 - NEW: add hint option to Parse.Query [#6322](https://github.com/parse-community/parse-server/pull/6322). Thanks to [Steve Stencil](https://github.com/stevestencil)
 - FIX: CLP objectId size validation fix [#6332](https://github.com/parse-community/parse-server/pull/6332). Thanks to [Old Grandpa](https://github.com/BufferUnderflower)
 - FIX: Add volumes to Docker command [#6356](https://github.com/parse-community/parse-server/pull/6356). Thanks to [Kasra Bigdeli](https://github.com/githubsaturn)
@@ -31,7 +50,7 @@ FIX: attempt to get travis to deploy to npmjs again.  See [#6475](https://github
 - NEW: GraphQL Nested File Upload [#6372](https://github.com/parse-community/parse-server/pull/6372). Thanks to [Antoine Cormouls](https://github.com/Moumouls)
 - NEW: Granular CLP pointer permissions [#6352](https://github.com/parse-community/parse-server/pull/6352). Thanks to [Old Grandpa](https://github.com/BufferUnderflower)
 - FIX: Add missing colon for customPages [#6393](https://github.com/parse-community/parse-server/pull/6393). Thanks to [Jerome De Leon](https://github.com/JeromeDeLeon)
-NEW: `afterLogin` cloud code hook [#6387](https://github.com/parse-community/parse-server/pull/6387). Thanks to [David Corona](https://github.com/davesters)
+- NEW: `afterLogin` cloud code hook [#6387](https://github.com/parse-community/parse-server/pull/6387). Thanks to [David Corona](https://github.com/davesters)
 - FIX: __BREAKING CHANGE__ Prevent new usernames or emails that clash with existing users' email or username if it only differs by case.  For example, don't allow a new user with the name 'Jane' if we already have a user 'jane'. [#5634](https://github.com/parse-community/parse-server/pull/5634). Thanks to [Arthur Cinader](https://github.com/acinader)
 - FIX: Support Travis CI V2. [#6414](https://github.com/parse-community/parse-server/pull/6414). Thanks to [Diamond Lewis](https://github.com/dplewis)
 - FIX: Prevent crashing on websocket error. [#6418](https://github.com/parse-community/parse-server/pull/6418). Thanks to [Diamond Lewis](https://github.com/dplewis)