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Table of Contents

Major Functionality and Interface Changes

Improved semantics for loading Exposures and MaskedImages from arbitrary FITS files


It is now possible to use lsst.afw.cameraGeom.utils to display CCD data laid out in the focal plane. An example of how this functionality works in practice is available as an IPython notebook. (DM-2347)

Bug Fixes

The following fixes resolve problems visible to end users.


The DipoleMeasurementConfig.setDefaults method incorrectly contained a return that was executed before the defaults were actually applied. This has been corrected, and a number of tests updated to rely on those defaults. (DM-3159)

Build and code improvements

These improvements should not usually be visible to end users. They may be important for developers, however.


Several performance optimizations to the (C++) algorithms used in the deblender have been implemented, in particular those which identify objects with significant amounts of their flux attributed to edge pixels. In addition, memory usage was reduced by removing unused mask planes left over from debugging, not storing masks for deblending templates, and by clipping template images when their associated Footprints are clipped. (DM-2914)


Release notes for Qserv and Webserv

These release notes focus on the Science Pipelines part of the LSST Stack, but there are other important components developed by Data Management teams.

Known Issues

An up-to-date list of known issues for 11.0 affecting external users is available.

Measurements & Characterisation

A summary of Stack characterisation measurements is available.