Add 4.18.0 release post (#7004)

articles/fleet-4.17.0.md

@@ -35,7 +35,7 @@ To include Fleet Desktop in your installer package, add the `--fleet-desktop` fl
 
 [Read more about bringing Fleet Desktop out of beta.](https://github.com/fleetdm/fleet/issues/5684)
 
-## Battery condition added to Host Details for MacOS.
+## Battery condition added to Host Details for macOS.
 **Available in Fleet Free & Fleet Premium**
 
 ![Battery condition added to Host Details.](../website/assets/images/articles/fleet-4.17.0-3-1600x900@2x.jpg)

articles/fleet-4.18.0.md

@@ -0,0 +1,74 @@
+# Fleet 4.18.0 | Test Fleet upgrades before installing, better security and user messaging in Fleet Desktop
+
+Fleet 4.18.0 is up and running. Check out the full [changelog](https://github.com/fleetdm/fleet/releases/tag/fleet-v4.18.0) or continue reading to get the highlights.
+
+For update instructions, see our [upgrade guide](https://fleetdm.com/docs/deploying/upgrading-fleet) in the Fleet docs.
+
+## Highlights
+- Automated testing for upgrading to a new version of Fleet.
+- Improved security for Fleet Desktop.git a 
+- Show your end users a call to action in Fleet desktop for failing policies.
+
+## Automated testing for upgrading to a new version of Fleet
+**Available in Fleet Free and Fleet Premium**
+
+Automated testing allows you to quickly and easily make sure that you can upgrade without unforseen consequences. Run the test with `FLEET_VERSION_A=v4.16.0 FLEET_VERSION_B=v4.17.0 go test ./test/upgrade` and see what happens when a Fleet server with version `A` is upgraded to version `B`! For more details, check out the [ticket](https://github.com/fleetdm/fleet/pull/6376). 
+
+## Improved security for Fleet Desktop
+**Available in Fleet Premium**
+
+Fleet Desktop uses a random UUID to authenticate to the Fleet server. While it's extremely unlikely to fall victim to a brute-force attack, it's always better to be safe than sorry. In order to combat that possibility, we've added rate limiting for all device authorized endpoints. 
+
+## Show your end users a call to action in Fleet Desktop for failing policies
+**Available in Fleet Free & Fleet Premium**
+
+![Show your end users a call to action in Fleet desktop for failing policies.](../website/assets/images/articles/fleet-4.18.0-1.gif)
+The main goal of Fleet Desktop is to empower end users to take charge of managing the security of their enrolled device. If a device is failing a policy check, Fleet Desktop will now show end users useful information for resolving the issue and make it easy to check if they've fixed it. 
+
+## More new features, improvements, and bug fixes
+
+In 4.18.0, we also:
+
+* Improved styling for tooltips, dropdowns, copied text, checkboxes and buttons. 
+
+* Fixed a bug present when converting a user to SSO login. 
+
+* Fixed a bug causing the edit user modal to hang after editing one user.
+
+* Fixed a bug in the FleetUI causing text to be truncated in tables. 
+
+* Fixed a bug affecting software vulnerabilities count in Host Details.
+
+* Fixed Select Targets search box and updated to reflect currently supported search values: hostname, UUID, serial number, or IPv4.
+
+* Improved disk space reporting in Host Details. 
+
+* Updated frequency formating for Packs to match Schedules. 
+
+* Fixed a bug causing only one line to be exported from live query results. 
+
+* Replaced `hosts` count with `results` count for live queries.
+
+* Replaced "Uptime" with "Last restarted" column in Host Details.
+
+* Removed vulnerabilities that do not correspond to a CVE in Fleet UI and API
+
+* Added standard password requirements when users are created by an admin.
+
+* Updated the regexp we use for detecting the major/minor version on OS platforms.
+
+* Improved calculation of battery health based on cycle count. “Normal” corresponds to cycle count < 1000 and “Replacement recommended”
+  corresponds to cycle count >= 1000.
+
+* Fixed an issue with double quotes usage in SQL query, caused by enabling `ANSI_QUOTES` in MySQL.
+
+### Ready to update?
+
+Visit our [Update guide](https://fleetdm.com/docs/deploying/upgrading-fleet) in the Fleet docs for instructions on updating to Fleet 4.18.0.
+
+<meta name="category" value="releases">
+<meta name="authorFullName" value="Kathy Satterlee">
+<meta name="authorGitHubUsername" value="ksatter">
+<meta name="publishedOn" value="2022-08-02">
+<meta name="articleTitle" value="Fleet 4.18.0 | Test Fleet upgrades before installing, better security and user messaging in Fleet Desktop">
+<meta name="articleImageUrl" value="../website/assets/images/articles/fleet-4.18.0-cover-1600x900@2x.jpg">