Two perly things have happened in Exherbo recently. First of all, I pushed an exheres for 5.10.1-RC1 last night. I have tested to ensure that it should be possible to up- and downgrade between 5.10.0 and 5.10.1 without any issues, so feel free to test it. You will however need to rebuild anything that links against libperl.so (reconcilio should take care of that for you) so keep an eye out. Yes, this includes vim[perl] ;). RC1 and any further RCs will stay masked for testing indefinitely. 5.10.1 will introduce some changes, notably in features introduced in the 5.10-series, that are not backwards compatible with 5.10.0 so if you feel courageous, install it and see if you can make any packages break.
The second news is perl6. Ingmar has done some bitchin’ awesome work on getting parrot and rakudo in a state where they actually compile and install! As a result you can now play with the current version of rakudo, compiled straight from SCM:
$ perl6 -e'say "Hello, world!"'
Remember to buy Ingmar a beer if you meet him :-)