[DOCS] Added 6.1.3 security release notes (elastic/x-pack-elasticsearch#3776)
Original commit: elastic/x-pack-elasticsearch@c696395412787a9e06dc29eb166aeab685ceb68e
[[xes-bug-6.1.3]]
[float]
=== Bug fixes
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+
Security::
-* [Security] Handle cache expiry in token service
+* Improved cache expiry handling in the token service. Previously, if the token
+service was idle for more than 60 minutes, the key expired and the service
+failed to generate user tokens.
// Repo: x-pack-elasticsearch
//Pull: 3565
-////
Watcher::
* Fixed a null pointer exception in the TemplateRegistry when there is no master
