diff --git a/README.md b/README.md
index cf5f1c2..3ef66c7 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@ Features
 - FileMaker Admin API PKI Authentication
 - View and change the settings for the persistent cache (for FileMaker Server 2024)
 - View and change the setting for blocking new users (for FileMaker Server 2024)
+- View the setting for opening the databases that were opened when the database server was last shut down (for FileMaker Server 2024 (21.1))
 
 Supported Servers
 -----
diff --git a/fmcsadmin.go b/fmcsadmin.go
index 446f459..65336c8 100644
--- a/fmcsadmin.go
+++ b/fmcsadmin.go
@@ -1076,6 +1076,7 @@ func (c *cli) Run(args []string) int {
 								case "authenticatedstream", "parallelbackupenabled":
 								case "persistcacheenabled", "syncpersistcache", "databaseserverautorestart":
 								case "blocknewusersenabled":
+								case "onlyopenlastopeneddatabases":
 								default:
 									exitStatus = 10001
 								}
@@ -1130,6 +1131,8 @@ func (c *cli) Run(args []string) int {
 											printOptions = append(printOptions, "databaseserverautorestart")
 										case "blocknewusersenabled":
 											printOptions = append(printOptions, "blocknewusersenabled")
+										case "onlyopenlastopeneddatabases":
+											printOptions = append(printOptions, "onlyopenlastopeneddatabases")
 										default:
 											exitStatus = 10001
 										}
@@ -1158,6 +1161,9 @@ func (c *cli) Run(args []string) int {
 										printOptions = append(printOptions, "databaseserverautorestart")
 										printOptions = append(printOptions, "blocknewusersenabled")
 									}
+									if !usingCloud && version >= 21.1 {
+										printOptions = append(printOptions, "onlyopenlastopeneddatabases")
+									}
 								}
 
 								if version >= 19.2 && startupRestoration {
@@ -1220,6 +1226,18 @@ func (c *cli) Run(args []string) int {
 											}
 										}
 									}
+
+									if option == "onlyopenlastopeneddatabases" {
+										if usingCloud {
+											// for Claris FileMaker Cloud
+											exitStatus = 3
+										} else {
+											// for Claris FileMaker Server
+											if version < 21.1 {
+												exitStatus = 3
+											}
+										}
+									}
 								}
 							}
 
@@ -3927,6 +3945,10 @@ func getServerGeneralConfigurations(urlString string, token string, printOptions
 	var maxProConnections int
 	var maxPSOS int
 	var startupRestorationEnabled bool
+	var onlyOpenLastOpenedDatabases bool
+
+	versionString, _ := getServerVersionString(strings.Replace(urlString, "/config/general", "/metadata", 1), token)
+	version, _ := getServerVersionAsFloat(versionString)
 
 	body, _, err := callURL("GET", urlString, token, nil)
 	if err != nil {
@@ -3974,8 +3996,15 @@ func getServerGeneralConfigurations(urlString string, token string, printOptions
 		settings = append(settings, -1)
 	}
 
-	versionString, _ := getServerVersionString(strings.Replace(urlString, "/config/general", "/metadata", 1), token)
-	version, _ := getServerVersionAsFloat(versionString)
+	if version >= 21.1 {
+		// for Claris FileMaker Server 21.1.1 or later
+		_ = scan.ScanTree(v, "/response/onlyOpenLastOpenedDatabases", &onlyOpenLastOpenedDatabases)
+		if onlyOpenLastOpenedDatabases {
+			settings = append(settings, 1)
+		} else {
+			settings = append(settings, 0)
+		}
+	}
 
 	// output
 	if result == 0 {
@@ -4050,6 +4079,16 @@ func getServerGeneralConfigurations(urlString string, token string, printOptions
 					getServerSettingAsBool(strings.Replace(urlString, "/general", "/blocknewusers", 1), token, []string{option})
 				}
 			}
+
+			if option == "onlyopenlastopeneddatabases" {
+				if version >= 21.1 {
+					if onlyOpenLastOpenedDatabases {
+						fmt.Println("OnlyOpenLastOpenedDatabases = true [default: false] ")
+					} else {
+						fmt.Println("OnlyOpenLastOpenedDatabases = false [default: false] ")
+					}
+				}
+			}
 		}
 	}
 
diff --git a/release-notes.txt b/release-notes.txt
index a7f189d..6e19918 100644
--- a/release-notes.txt
+++ b/release-notes.txt
@@ -3,7 +3,9 @@ fmcsadmin
 This software is distributed under the Apache License, Version 2.0, see LICENSE.txt and NOTICE.txt for more information.
 
 Version: 2.3.0-dev (in development)
+- Add support for Claris FileMaker Server 2024 (21.1).
 - Add support for macOS Sequoia 15.
+- Update "GET SERVERPREFS" command to open the databases that were opened when the database server was last shut down for Claris FileMaker Server 2024 (21.1). (Usage: "fmcsadmin get serverprefs OnlyOpenLastOpenedDatabases")
 - Built with Go 1.23.
 - [INFO] Drop support for Claris FileMaker Server 19.6.
 - [INFO] Drop support for macOS Monterey 12.