Build System
+Major changes have been made to the build system. +The good news is that the rules for support and ioc applications +are now greatly simplified. The bad news is that it does mean +changes for existing 3.14.1 applications. Please see:
+ConvertingR3.14.1AppsToR3.14.2
+for details.
+ +Application Developer's Guide
+The old chapter "New Feature's for 3.14" has been replaced by +a new chapter "Getting Started". Please read it. It provides +a simplified set of rules that can be used to build most +support and ioc applications. Many minor changes have also been made.
+ +dbGetLink
+A bug in dbGetLink resulted in nRequest not being given the value 0 +if the link is a constant link. This in turn caused the waveform +record to always set NORD=NELEM. Thus if an application trys +to write a waveform via the steps:
++ prset->get_array_info(paddr,&no_elements,&offset); + /*write nNew elements into array*/ + prset->put_array_info(paddr,nNew); ++
This sets NORD = nNew. +But because of the dbGetLink bug, the soft device support attached to +the waveform record sets NORD to NELM.
+This problem is fixed. The actual bug was in macros in dbAccessDefs.h
+ +Access Security
+The host names are now converted to lower case. +This fixes incompatibilities between various platforms.
+ +string records
+Both the stringin and stringout records have two new DBF_MENU fields: +APST and MPST. These control whether CA monitors are fired if the new VAL +field string is identical to the old one. The default (zero) menu value is +"On Change" with behaviour identical to before, +set to "Always" if you want a record to fire monitors every time the record +is processed (analagous to setting ADEL/MDEL=-1 for numeric record types).
+ +epicsStdio and errlogPrintf
+A new facility has been added to libCom described by epicsStdio.h. +It contains the functions epicsSnprintf and epicsVsnprintf. +These are like the C99 functions snprintf and vsnprintf. +These are like printf except that thet accept a argument +limiting the number of characters written.
+The errlogPrintf facility has been modified to use this facility. +Thus it is not longer subject to a possible buffer overflow.
+ +scanPeriod
+This is a new function provided by the Database Scanning facility. +Given an index for the choices defined by menuScan.h, it returns +the scan period in seconds. The argument can just be the scan field +of a database record. If the index is not associated with a periodic +scan rate, the value 0.0 is returned.
+ +New epicsString.h function
+A new function epicsStrCaseCmp has been added. It is like strcmp +except that it ignores case. + +