DOCS-16225 TTL Indexes on Capped Collections (#4792)

* DOCS-16225 TTL Indexes on Capped Collections

* RN order

* remove overview header

Author: ajhuh-mdb

source/core/capped-collections.txt

@@ -12,9 +12,6 @@ Capped Collections
    :depth: 2
    :class: singlecol
 
-Overview
---------
-
 :term:`Capped collections <capped collection>` are fixed-size
 collections that support high-throughput operations that insert
 and retrieve documents based on insertion order. Capped
@@ -33,9 +30,6 @@ for more information on creating capped collections.
    to expire and remove data from normal collections based on the value
    of a date-typed field and a TTL value for the index.
 
-   TTL indexes are not compatible with capped collections.
-
-
 Behavior
 --------
 

source/core/index-ttl.txt

@@ -239,9 +239,6 @@ Restrictions
 
 - The ``_id`` field does not support TTL indexes.
 
-- You cannot create a TTL index on a :ref:`capped collection
-  <manual-capped-collection>`.
-
 - You can only create TTL indexes for a :ref:`time series collection
   <manual-timeseries-landing>` on the collection ``timeField``.
 

source/release-notes/7.1.txt

@@ -91,6 +91,12 @@ Specify a query's index using the hint field
 Starting in MongoDB 7.1, the hint field is available in the :dbcommand:`distinct` command, 
 allowing you to specify the query's index. 
 
+TTL Indexes 
+~~~~~~~~~~~
+
+Starting in MongoDB 7.1, you can create :ref:`TTL indexes <index-feature-ttl>` 
+on :ref:`capped collections <manual-capped-collection>`.
+
 serverStatus Output Change 
 --------------------------