Rn 0.42.0 (#1432)

* added rn

* add checkpoint name

docs/rn/0.42.md

@@ -0,0 +1,15 @@
+# Release 0.42
+
+:material-calendar: 2023-06-17 · :material-list-status: [Full Changelog](https://github.com/srl-labs/containerlab/releases)
+
+## Home dir for `sudo` user
+
+Now when you run `sudo containerlab deploy`, the topology files will be searched in the home directory of the user that runs the command and not the root user. Before that change users had to use `sudo -E` to preserve the environment variables and run the command as the current user. Now we made it simpler, just in the spirit of containerlab. #1412
+
+## Miscellaneous
+
+* Optimized link creation #1395
+* Kernel version check is performed for topologies with SR Linux nodes which require kernel v4.10+ #1415
+* SNMP has been added to the list of services that are enabled by default in SR Linux #1416
+* Checkpoint named `clab-initial` is automatically generated on SR Linux nodes when the node is booted #1431
+* Partial startup configs with no commands do not cause panic anymore #1423