The new Delphi 7.1 update contains a new version of MIDAS.DLL (version 7.1.1692.666). Dave Rowntree did some digging and came up with this list of fixes in MIDAS in Delphi 7.1. (Thanks, Dave!!!) Note that he cross-referenced the fixes to the QualityCentral entries. So I would say this is (yet) more proof that QC is working. You can download the newest version of the dll from my web site. It should be backwards compatible with Delphi 5 and 6. I will update this entry with any fixes that were missed, or any new issues that got introduced.

Fixed in Midas.dll
1712 - TFieldAggregate returns incorrect value
2019 - nested CDS Edit/Post twice, master ApplyUpdates, Delta incorrect
2027 - Edit/Post on nested CDS InternalCalc field causes ChangeCount to increase
2333 - Incorrect Delta after ApplyUpdates(0) with poPropogateChanges
2529 - Opening .XML files using D7 Midas.dll that were created using D6 Midas.dll fails
2626 - Inability to use ftLargeInt as an index with a tClientDataset
2717 - Incorrect ChangeCount with TWideStringField
3777 - InternalCalc fields are reset to null by ApplyUpdates when using poPropogateChanges
4301 - CancelRange on nested ClientDataset breaks link with masterrecord
4508 - ChangeCount being incremented when data has not changed.
4676 - Size of Blobfields not adjusted when using RefreshRecord
5319 - Client Dataset Locate method on a Word field always returns false
5509 - MIDAS allocates values against nested dataset AutoInc fields.
5646 - Nested TClientDataSet deletion fails if child has CloneCursor has been invoked
6591 - TBlobfield looses value when LogChanges = False
6849 - ClientDataSet insert duplicate's details record's with NestedDataSet

Fixed in Midas.dll + VCL
2011 - 'key violation' - InternalCalc field in nested CDS/poFetchDetailsOnDemand
3786 - ClientDataSet.FindKey on cloned cursor fails
3496 - ClientDataSet Filter on a LargeIntField - Design / Run Time Errors.
7543 - MIDAS corrupts indices