README: 17.09 -> 18.03

README.md

@@ -12,12 +12,12 @@ build daemon as so-called channels. To get channel information via git, add
 ```
 
 For stability and maximum binary package support, it is recommended to maintain
-custom changes on top of one of the channels, e.g. `nixos-17.09` for the latest
+custom changes on top of one of the channels, e.g. `nixos-18.03` for the latest
 release and `nixos-unstable` for the latest successful build of master:
 
 ```
 % git remote update channels
-% git rebase channels/nixos-17.09
+% git rebase channels/nixos-18.03
 ```
 
 For pull-requests, please rebase onto nixpkgs `master`.
@@ -31,9 +31,9 @@ For pull-requests, please rebase onto nixpkgs `master`.
 * [Manual (NixOS)](https://nixos.org/nixos/manual/)
 * [Community maintained wiki](https://nixos.wiki/)
 * [Continuous package builds for unstable/master](https://hydra.nixos.org/jobset/nixos/trunk-combined)
-* [Continuous package builds for 17.09 release](https://hydra.nixos.org/jobset/nixos/release-17.09)
+* [Continuous package builds for 18.03 release](https://hydra.nixos.org/jobset/nixos/release-18.03)
 * [Tests for unstable/master](https://hydra.nixos.org/job/nixos/trunk-combined/tested#tabs-constituents)
-* [Tests for 17.09 release](https://hydra.nixos.org/job/nixos/release-17.09/tested#tabs-constituents)
+* [Tests for 18.03 release](https://hydra.nixos.org/job/nixos/release-18.03/tested#tabs-constituents)
 
 Communication: