diff --git a/doc/deployment/Creating-a-release.md b/doc/deployment/Creating-a-release.md
index 64bf74256..03889ba8e 100644
--- a/doc/deployment/Creating-a-release.md
+++ b/doc/deployment/Creating-a-release.md
@@ -60,6 +60,8 @@ is recent enough to include the most recent changes in the
 
 1. Do the same for the `EPICS32` 32-bit build, replacing `EPICS` with `EPICS32` everywhere in the commands above.
 1. Check release is now listed in [`https://control-svcs.isis.cclrc.ac.uk/git/?a=project_list;pf=releases`](https://control-svcs.isis.cclrc.ac.uk/git/?a=project_list;pf=releases)
+1. Run the [`instrument_deploy.yaml` ansible playbook](https://github.com/ISISComputingGroup/ansible-playbooks/tree/main?tab=readme-ov-file#instrument_deployyaml) which currently installs the JDK on instruments. 
+
 
 {#creating_release_testing_steps}
 ### Testing
diff --git a/doc/overview/First-Time-Build.md b/doc/overview/First-Time-Build.md
index 8391a9243..b2e980c5b 100644
--- a/doc/overview/First-Time-Build.md
+++ b/doc/overview/First-Time-Build.md
@@ -19,14 +19,12 @@ See  [Install Visual Studio](/iocs/compiling/Install-Visual-Studio)
 {#first_time_install_java}
 ## Install Java JDK
 
-Install **OpenJDK 21 hotspot** from https://adoptium.net/?variant=openjdk21&jvmVariant=hotspot (the MSI installer is fine, tick all the boxes when it asks you which components to install)
+Install the **OpenJDK 25 hotspot** binary zip from https://adoptium.net and extract to `\instrument\apps\JDK\21`
 
 ```{important}
 **Do not install an Oracle JDK**. It has an unsuitable license.
 ```
 
-You may wish to install some optional java components [as detailed here](#developer_upgrade_java).
-
 {#first_time_install_maven}
 ## Install Maven