Update v2_6_0.md

Signed-off-by: Jakub Balhar <jakub.balhar@broadcom.com>

docs/whats-new/release-notes/v2_6_0.md

@@ -13,7 +13,7 @@ Zowe Version 2.6.0 contains the enhancements that are described in the following
 :::info find out more
 To watch a demo of new enhancements and updated features included in a Zowe V2 minor release, look for the release demo recording in the [Zowe V2 System Demo playlist](https://www.youtube.com/playlist?list=PL8REpLGaY9QGjSTAqZaWxLG_g-jW1qGmo) on YouTube.
 
-System demos are typically held the week after a minor release becomes available. Check the [Open Mainframe Project Calendar](https://lists.openmainframeproject.org/g/zowe-dev/calendar) for the latest schedule.
+System demos are typically held the week after a minor release becomes available. Check the [Open Mainframe Project Calendar](https://zoom-lfx.platform.linuxfoundation.org/meetings/zowe) for the latest schedule.
 :::
 
 ### Zowe API Mediation Layer