docs(installation): Update "Vagrant Boxes" changelog page

docs/installation/vagrant-boxes.md

@@ -24,6 +24,85 @@ The following images are available on HCP Vagrant Registry:
 If you are looking for AlmaLinux OS Kitten images, please, visit the [AlmaLinux OS Kitten page](/development/almalinux-os-kitten-10).
 :::
 
+## How to increase disk size
+
+Starting from the **20260318** version (**8.10.20260318**, **9.7.20260318**, **10.1.20260318**), automatic partition and filesystem resizing is enabled.
+This is implemented with the cloud-init NoCloud/None datasource configuration (via `99_vagrant.cfg`).
+
+To increase disk size (for example, to 100GB) for a specific provider:
+
+- **Libvirt**
+
+  ```ruby
+  Vagrant.configure("2") do |config|
+    config.vm.box = "almalinux/10"
+
+    config.vm.provider "libvirt" do |libvirt|
+      libvirt.machine_virtual_size = 100
+    end
+  end
+  ```
+
+- **VirtualBox**
+
+  ```ruby
+  Vagrant.configure("2") do |config|
+    config.vm.box = "almalinux/10"
+
+    config.vm.disk :disk, size: "100GB", primary: true
+
+    config.vm.provider "virtualbox" do |vb|
+      # VirtualBox specific configuration
+    end
+  end
+  ```
+
+- **VMware**
+
+  ```ruby
+  Vagrant.configure("2") do |config|
+    config.vm.box = "almalinux/10"
+
+    config.vm.disk :disk, size: "100GB", primary: true
+
+    config.vm.provider "vmware_desktop" do |v|
+      # Force a full clone (an independent copy of the disk)
+      v.linked_clone = false
+    end
+  end
+  ```
+
+- **Hyper-V**
+
+  ```ruby
+  Vagrant.configure("2") do |config|
+    config.vm.box = "almalinux/10"
+
+    config.vm.disk :disk, size: "100GB", primary: true
+
+    config.vm.provider "hyperv" do |hyperv|
+      # Force a full clone (an independent copy of the disk)
+      hyperv.linked_clone = false
+    end
+  end
+  ```
+
+- **Parallels**
+
+  ```ruby
+  Vagrant.configure("2") do |config|
+    config.vm.box = "almalinux/10"
+
+    config.vm.provider "parallels" do |prl|
+      # Force a full clone (an independent copy of the disk)
+      prl.linked_clone = false
+      # Parallels requires disk size in MB (102400 MB = 100 GB)
+      prl.customize "post-import",
+        ["set", :id, "--device-set", "hdd0", "--size", "102400", "--no-fs-resize"]
+    end
+  end
+  ```
+
 ## Contribute and Get Help
 
 If you are interested in contributing or need any assistance, check the [SIG/Cloud](/sigs/Cloud) wiki page and join the _~SIG/Cloud_ chat channel in [Mattermost](https://chat.almalinux.org/almalinux/channels/sigcloud) chat channel on [chat.almalinux.org](https://chat.almalinux.org).
@@ -36,6 +115,12 @@ If you are interested in contributing or need any assistance, check the [SIG/Clo
 
 All the boxes have been migrated to the [HCP Vagrant Registry](https://portal.cloud.hashicorp.com/vagrant/discover/almalinux).
 
+### AlmaLinux OS version **8.10.20260318**, **9.7.20260318**, **10.1.20260318**
+
+- Package updates
+- New packages were added: `cloud-utils-growpart`
+- Enabled automatic partition and filesystem resizing when disk size is increased
+
 ### AlmaLinux OS version **8.10.20260112**
 
 - Packages updates