update release docs

site/content/en/docs/contrib/releasing/binaries.md

@@ -53,13 +53,6 @@ You may merge this PR at any time, or combine it with a `Makefile` update PR.
 Update the version numbers in  `Makefile`:
 
 * `VERSION_MAJOR`, `VERSION_MINOR`, `VERSION_BUILD`
-* `ISO_VERSION`:
-  - beta releases use: `v$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)`
-  - major/minor releases use: `v$(VERSION_MAJOR).$(VERSION_MINOR).0`
-  - if the ISO was updated, a patch release may use `v$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)`
-* `DEB_REVISION`, `RPM_REVISION`
-  - for all major/minor releases, set to 0
-  - if updating .deb/.rpm files without a major/minor release, increment by 1
 
 {{% alert title="Warning" color="warning" %}}
 Merge this PR only if all non-experimental integration tests pass!
@@ -121,4 +114,4 @@ Other places:
 
 - #minikube on Slack
 - minikube-dev, minikube-users mailing list
-- Twitter (optional!)
+- Twitter (this is now automated with the @minikube_dev account)

site/content/en/docs/contrib/releasing/iso.md

@@ -16,4 +16,4 @@ Note: you can build the ISO using the `hack/jenkins/build_iso.sh` script locally
 * For `ISO_BUCKET`, type in `minikube/iso`
 * Click *Build*
 
-The build will take roughly 50 minutes and will automatically create a PR with the changes.
+The build will automatically create a PR with the changes.