Dec 13, 2019.
macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps. Enjoy your favorite iPad apps now on your Mac. Extend your workspace and expand your creativity with iPad and Apple Pencil. And discover smart new features in the apps you use every day. Now you can take everything you do above and beyond.
Check compatibility
If you're using one of these computers with OS X Mavericks or later,* you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier.
MacBook introduced in 2015 or later
MacBook Air introduced in 2012 or later MacBook Pro introduced in 2012 or later Mac mini introduced in 2012 or later iMac introduced in 2012 or later iMac Pro (all models) Mac Pro introduced in 2013 or later
* To upgrade from Lion or Mountain Lion, first upgrade to El Capitan, then upgrade to Catalina. To find your macOS version, Mac model, memory, and storage space, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Catalina, the installer will let you know. View the complete list of compatible computers.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Catalina
If you're using macOS Mojave, get macOS Catalina via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Catalina page on the App Store: Get macOS Catalina. Then click the Get button or iCloud download icon.
Begin installation
After downloading, the installer opens automatically.
Intuit quickbooks download for mac. Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Stay up to date
After installing macOS Catalina, you will be notified when updates to macOS Catalina are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Catalina automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Catalina will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Catalina is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Catalina from your Applications folder.
Learn more
Objective
To improve the security of connections to Citrix Cloud, Citrix will block any communication over Transport Layer Security (TLS) 1.0 and 1.1 as of March 15, 2019.
Upgrading to latest Receiver or Citrix Workspace App Retrieving a list of users connecting on older Receiver versions Citrix Cloud Management Citrix Director Citrix Cloud Connector Troubleshooting Refer to the following article to configure Citrix Gateway for Citrix Endpoint Management: Citrix Endpoint Management TLS Version Deprecation InstructionsUpgrading to latest Receiver or Citrix Workspace AppTo ensure successful connection to Citrix Workspace from user endpoint devices, the version of Citrix Receiver installed must be equal to or greater than the versions listed below that support TLS 1.2.
Citrix recommends upgrading to Citrix Workspace app if your version of Receiver is earlier than those listed above. Download here: https://www.citrix.com/products/receiver.html
Thin Clients with Earlier Receiver Versions If you are using Thin Clients with earlier versions of Citrix Receiver that cannot be updated, install an on-prem StoreFront in your resource location and have all of the Citrix Receivers point to it. Retrieving a list of users connecting on older Receiver versions
To retrieve a list of Receivers connecting to your Citrix Cloud environment, log into Citrix Cloud and click the Manage button for the Virtual Apps and Desktops service. The details include user, version, connection date, and endpoint device name.
Virtual Apps and Desktops (Full Edition)
Update Tls 1.2Citrix Cloud Management
To ensure successful connection to the Citrix Cloud management console (citrix.cloud.com), your browser must support TLS 1.2 (latest version of most web browsers).
Citrix Director
TLS 1.2 connection will be required when using OData APIs. To enforce use of TLS 1.2 on the client machine for clients such as MS Excel, PowerShell, LinqPad, refer to the following KB article: https://support.citrix.com/article/CTX245765
Citrix Cloud Connector![]()
All connections to Citrix Cloud services from Citrix Cloud Connectors will require TLS 1.2. Citrix Provisioning and Machine Creation Services will allow TLS 1.0, 1.1, and TLS 1.2 connections by default (no action required) until later this year when it will change to TLS 1.2 only.
Note: If your security policy requires strict enforcement of TLS 1.2 connections, the following registry setting changes are required on each Citrix Cloud Connector.
.NET
[HKEY_LOCAL_MACHINESOFTWAREWOW6432NodeMicrosoft.NETFrameworkv2.0.50727]
'SchUseStrongCrypto'=dword:00000001
[HKEY_LOCAL_MACHINESOFTWAREWOW6432NodeMicrosoft.NETFrameworkv4.0.30319]
'SchUseStrongCrypto'=dword:00000001
[HKEY_LOCAL_MACHINESOFTWAREMicrosoft.NETFrameworkv2.0.50727]
'SchUseStrongCrypto'=dword:00000001
[HKEY_LOCAL_MACHINESOFTWAREMicrosoft.NETFrameworkv4.0.30319]
'SchUseStrongCrypto'=dword:00000001
SCHANNEL
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocols]
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0Client] 'DisabledByDefault'=dword:00000001 'Enabled'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 2.0Server] 'Enabled'=dword:00000000 'DisabledByDefault'=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0Client] 'Enabled'=dword:00000000 'DisabledByDefault'=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsSSL 3.0Server] 'Enabled'=dword:00000000 'DisabledByDefault'=dword:00000001 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0Client] 'DisabledByDefault'=dword:00000001 'Enabled'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.0Server] 'DisabledByDefault'=dword:00000001 'Enabled'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1Client] 'DisabledByDefault'=dword:00000001 'Enabled'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.1Server] 'DisabledByDefault'=dword:00000001 'Enabled'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2] [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2Client] 'Enabled'=dword:00000001 'DisabledByDefault'=dword:00000000 [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSCHANNELProtocolsTLS 1.2Server] 'Enabled'=dword:00000001 'DisabledByDefault'=dword:00000000
For more details, refer to the Microsoft article “Transport Layer Security (TLS) best practices with the .NET Framework”, section “SystemDefaultTlsVersions” https://docs.microsoft.com/en-us/dotnet/framework/network-programming/tls#systemdefaulttlsversion
TroubleshootingHow To Download Tls 1.2
Since Citrix Cloud supports only TLS 1.2 and above, all clients accessing any data from Citrix Services with TLS versions 1.0 and 1.1 will see one of the following errors:
DirectorTls 1.2 Mac
Error:
System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host Refer to the following article to configure clients for TLS 1.2 communication: https://support.citrix.com/article/CTX245765 Receiver
Error:
'Unable to launch your app..Cannot connect to the Citrix XenApp server. SSL Error 4.. The server rejected the connection.' Refer to Upgrading to latest Receiver or Citrix Workspace app above. Connector
If your Citrix Cloud Connector machine is not able to establish a connection with Citrix Cloud after Mar 15, 2019, check the following registry key to ensure TLS 1.2 is not disabled:
HKLM SYSTEMCurrentControlSetControlSecurityProvidersSCHANNEL More details: https://docs.microsoft.com/en-us/windows-server/security/tls/tls-registry-settings https://docs.microsoft.com/en-us/windows/desktop/secauthn/protocols-in-tls-ssl--schannel-ssp- Note: Internet Explorer group policy settings also control the values found in SCHANNEL registry key; Internet Explorer > Internet Properties can be used to check enabled/disabled protocols. Comments are closed.
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