doc: update `RELEASES.md` for #1347

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@@ -37,6 +37,30 @@ samples-chart-lost-color = "blue"
 
 See [1247](https://github.com/fujiapple852/trippy/issues/1247) for more details.
 
+### Adjustable Hop Privacy Mode Settings
+
+Trippy has a privacy feature which can be used to hide sensitive information, such as IP address and GeoIp, for all hops
+up to a configurable `tui-privacy-max-ttl`.
+
+Today, the privacy feature can be toggled on and off from within the TUI using the `toggle-privacy` TUI command (bound
+to the `p` key by default), but only when `tui-privacy-max-ttl` is set to be greater than the default value of 0. If
+`tui-privacy-max-ttl` is set to be greater than 0, then the privacy mode will be enabled by default when Trippy
+starts. This behaviour is inconvenient for users who wish to enable privacy mode _after_ starting Trippy, as there is no
+way to enable it without first setting `tui-privacy-max-ttl` to be greater than 0 and restarting Trippy.
+
+Starting from this release, the `toggle-privacy` TUI command has been deprecated and replaced with the `expand-privacy`
+(bound to the `p` key by default) and `contract-privacy` (bound to the `o` key by default) TUI commands. The
+`expand-privacy` command will increase the `tui-privacy-max-ttl` value up to the maximum number of hops in the current
+trace, and the `contract-privacy` command will decrease the `tui-privacy-max-ttl` value down to 0.
+
+This allows users to adjust the number of hop that will be hidden at any time during a trace without needing to restart
+Trippy.
+
+See the [Key Bindings Reference](https://github.com/fujiapple852/trippy#key-bindings-reference) for details of how to
+adjust the default key bindings.
+
+See [#1347](https://github.com/fujiapple852/trippy/issues/1347) for more details.
+
 ### Thanks
 
 My thanks to all Trippy contributors, package maintainers and community members.