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Updated RELEASE_NOTES.md

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zimoch
2020-07-13 14:53:20 +02:00
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documentation/RELEASE_NOTES.md
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@@ -40,13 +40,21 @@ whitespace separated list of values.
#### Scalar records reading from empty arrays
Scalar records reading from empty arrays are now set to INVALID/LINK alarm
status.
Links have to call dbGetLink with pnRequest=NULL to be recognised as requests
Records reading scalar fields from empty arrays are now set to INVALID/LINK
alarm status.
Links have to call dbGetLink with pnRequest=NULL to be recognized as requests
for scalars.
This changes the semantics of pnRequest=NULL. It is now different from
requesting up to 1 array element, which may return a valid empty array.
### Writing empty arrays to scalar records
Witing an empty array to a scalar field now sets the target record to
INVALID/LINK alarm but does not modify the value. Before, the value used
to be set to 0 (without any alarm).
A target field needs to have the SPC_DBADDR tag to be recognized as an array
field and the record support must define a put_array_info method.
## EPICS Release 7.0.4
### Bug fixes