diff --git a/packages/allow-deny/package.js b/packages/allow-deny/package.js
index fb1dff8242..3245a986e6 100644
--- a/packages/allow-deny/package.js
+++ b/packages/allow-deny/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   name: 'allow-deny',
-  version: '1.1.1-beta260.4',
+  version: '1.1.1-rc260.0',
   // Brief, one-line summary of the package.
   summary: 'Implements functionality for allow/deny and client-side db operations',
   // URL to the Git repository containing the source code for this package.
diff --git a/packages/meteor-tool/package.js b/packages/meteor-tool/package.js
index 9e943397c6..7641d59413 100644
--- a/packages/meteor-tool/package.js
+++ b/packages/meteor-tool/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   summary: 'The Meteor command-line tool',
-  version: '2.6.0-beta.4',
+  version: '2.6.0-rc.0',
 });
 
 Package.includeTool();
diff --git a/packages/minimongo/package.js b/packages/minimongo/package.js
index 2706de45bd..7c2cabbdf1 100644
--- a/packages/minimongo/package.js
+++ b/packages/minimongo/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   summary: "Meteor's client-side datastore: a port of MongoDB to Javascript",
-  version: '1.8.0-beta260.4'
+  version: '1.8.0-rc260.0'
 });
 
 Package.onUse(api => {
diff --git a/packages/mongo/package.js b/packages/mongo/package.js
index 6161fd3f41..0912b1a5b0 100644
--- a/packages/mongo/package.js
+++ b/packages/mongo/package.js
@@ -9,7 +9,7 @@
 
 Package.describe({
   summary: "Adaptor for using MongoDB and Minimongo over DDP",
-  version: '1.14.0-beta260.4'
+  version: '1.14.0-rc260.0'
 });
 
 Npm.depends({
diff --git a/packages/npm-mongo/package.js b/packages/npm-mongo/package.js
index efe0ab0d5b..510b495a01 100644
--- a/packages/npm-mongo/package.js
+++ b/packages/npm-mongo/package.js
@@ -3,7 +3,7 @@
 
 Package.describe({
   summary: "Wrapper around the mongo npm package",
-  version: "4.3.1-beta260.4",
+  version: "4.3.1-rc260.0",
   documentation: null
 });
 
diff --git a/packages/tinytest/package.js b/packages/tinytest/package.js
index 706633b600..b73da5b4db 100644
--- a/packages/tinytest/package.js
+++ b/packages/tinytest/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   summary: "Tiny testing framework",
-  version: '1.2.1-beta260.4'
+  version: '1.2.1-rc260.0'
 });
 
 Package.onUse(function (api) {
diff --git a/scripts/admin/meteor-release-experimental.json b/scripts/admin/meteor-release-experimental.json
index 71e67a1080..056e8359b9 100644
--- a/scripts/admin/meteor-release-experimental.json
+++ b/scripts/admin/meteor-release-experimental.json
@@ -1,6 +1,6 @@
 {
   "track": "METEOR",
-  "version": "2.6-beta.4",
+  "version": "2.6-rc.0",
   "recommended": false,
   "official": false,
   "description": "Meteor experimental release"