[MS-ASCAL]: Exchange ActiveSync: Calendar Class Protocol https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 Specifies the Exchange ActiveSync: Calendar Class Protocol, which is used for the interchange of calendar data. Major Update for [MS-ASCAL] (Version 21.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 21.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL].pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-220429.docx">DOCX</a></li></ul> Fri, 29 Apr 2022 MS-ASCAL-20220429 Minor Update for [MS-ASCAL] (Version 20.1) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 20.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-201117.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-201117.docx">DOCX</a></li></ul> Tue, 17 Nov 2020 MS-ASCAL-20201117 Major Update for [MS-ASCAL] (Version 20.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 20.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-181001.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-ASCAL-20181001 Major Update for [MS-ASCAL] (Version 19.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 19.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-180724.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-ASCAL-20180724 No Update for [MS-ASCAL] (Version 18.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 18.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-170418.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-170418.docx">DOCX</a></li></ul> Tue, 18 Apr 2017 MS-ASCAL-20170418 Major Update for [MS-ASCAL] (Version 18.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 18.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-170228.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-170228.docx">DOCX</a></li></ul> Tue, 28 Feb 2017 MS-ASCAL-20170228 Major Update for [MS-ASCAL] (Version 17.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCAL/0c448682-4a6a-459a-ae66-2fed0712bef9 <b>Protocol Revision:</b> 17.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-160609.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCAL/[MS-ASCAL]-160609.docx">DOCX</a></li></ul> Thu, 09 Jun 2016 MS-ASCAL-20160609