docs/release-notes: add section w/ priv key caching in 0.14

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Olaoluwa Osuntokun 2021-08-25 18:44:55 -07:00
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@ -177,6 +177,12 @@ you.
when encoding/decoding messages. Such that most of the heap escapes are fixed,
resulting in less memory being used when running `lnd`.
* [`lnd` will now no longer (in a steady state) need to open a new database
transaction each time a private key needs to be derived for signing or ECDH
operations]https://github.com/lightningnetwork/lnd/pull/5629). This results
in a massive performance improvement across several routine operations at the
cost of a small amount of memory allocated for a new cache.
## Log system
* [Save compressed log files from logrorate during