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-rw-r--r--UPGRADE.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/UPGRADE.txt b/UPGRADE.txt
index 169969ae9..c54709eb8 100644
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -31,3 +31,6 @@ Applications:
to make them more distinguishable from 'maxmsgs', which sets folder
size. The old variables will continue to work in this version, albeit
with a deprecation warning.
+* ChanIsAvail() now has a 't' option, which allows the specified device
+ to be queried for state without consulting the channel drivers. This
+ performs mostly a 'ChanExists' sort of function.