diff --git a/docs/migrating-configs.md b/docs/migrating-configs.md
index 2a2201975..baf6f3e01 100644
--- a/docs/migrating-configs.md
+++ b/docs/migrating-configs.md
@@ -10,6 +10,34 @@ Occasionally, there are changes made to Ignition's configuration that break back
 1. TOC
 {:toc}
 
+## From Version 3.4.0 to 3.5.0
+
+### LUKS cex
+
+The `luks` section gained a new `cex` field for s390x. If specified and true, the LUKS volume will issue volume encryption using IBM Crypto Express Card.
+
+<!-- ignition -->
+```json
+{
+  "ignition": { "version": "3.5.0" },
+  "kernelArguments": {
+    "shouldExist": [
+      "'rd.luks.key=/etc/luks/cex.key'"
+    ]
+  },
+  "storage": {
+    "luks": [{
+      "name": "luks-cex",
+      "device": "/dev/sdb",
+      "discard": true,
+      "cex": {
+        "enabled": true
+      }
+    }]
+  }
+}
+```
+
 ## From Version 3.3.0 to 3.4.0
 
 There are not any breaking changes between versions 3.3.0 and 3.4.0 of the configuration specification. Any valid 3.3.0 configuration can be updated to a 3.4.0 configuration by simply changing the version string in the config.
diff --git a/docs/release-notes.md b/docs/release-notes.md
index 6120d77b9..cb4a266fc 100644
--- a/docs/release-notes.md
+++ b/docs/release-notes.md
@@ -11,11 +11,13 @@ nav_order: 9
 ### Features
 
 - Support partitioning disk with mounted partitions
-- Support Proxmox VE
 
 ### Changes
 
 - The Dracut module now installs partx
+- Mark the 3.5.0 config spec as stable
+- No longer accept configs with version 3.5.0-experimental
+- Create new 3.6.0-experimental config spec from 3.5.0
 
 ### Bug fixes
 
diff --git a/docs/specs.md b/docs/specs.md
index 43b1a7996..89021b3c6 100644
--- a/docs/specs.md
+++ b/docs/specs.md
@@ -19,6 +19,7 @@ We recommend that you always use the latest **stable** specification to benefit
 from new features and bug fixes. The following **stable** specification
 versions are currently supported in Ignition:
 
+- [v3.5.0](configuration-v3_5.md)
 - [v3.4.0](configuration-v3_4.md)
 - [v3.3.0](configuration-v3_3.md)
 - [v3.2.0](configuration-v3_2.md)
@@ -32,7 +33,7 @@ and testing** as it is subject to change **without warning or announcement**.
 The following **experimental** specification version is currently available in
 Ignition:
 
-- [v3.5.0-experimental](configuration-v3_5_experimental.md)
+- [v3.6.0-experimental](configuration-v3_6_experimental.md)
 
 ## Legacy spec 2.x configuration specifications
 
@@ -54,3 +55,4 @@ recommended to use the latest Ignition release.
 | 3.2.0        | 2.7.0            |
 | 3.3.0        | 2.11.0           |
 | 3.4.0        | 2.15.0           |
+| 3.5.0        | 2.20.0           |
\ No newline at end of file
diff --git a/generate b/generate
index 15b780da6..951f49ffa 100755
--- a/generate
+++ b/generate
@@ -12,7 +12,7 @@ hash schematyper 2>/dev/null || {
     exit 1
 }
 
-specs="v3_0 v3_1 v3_2 v3_3 v3_4 v3_5_experimental"
+specs="v3_0 v3_1 v3_2 v3_3 v3_4 v3_5 v3_6_experimental"
 
 for spec in $specs
 do