Hi Greg,

I can confirm the issue is solved here.

Cheers !

Drew

On Sun, 28 Mar 2021 at 08:32, Greg Landrum <greg.land...@gmail.com> wrote:

> Hi Drew,
>
> Thanks for pointing out the problem. I had inadvertently done the conda
> builds using freetype, but I forgot to add a freetype dependency.
> It should be fixed now. Note: removed the old builds and uploaded new
> ones, so you'll probably need to do a conda uninstall and then conda
> install again.
>
> -greg
>
>
> On Sat, Mar 27, 2021 at 8:09 PM Drew Gibson <drew.gibso...@googlemail.com>
> wrote:
>
>> Hi,
>>
>> just a heads-up that I'm seeing the following error on MacOS on trying to
>> create the rdkit extension in a chembl_28 db.
>>
>> chembl_28=# create extension if not exists rdkit;
>> ERROR:  could not load library
>> "/Users/drew/anaconda3/envs/rdkit-psql-2021/lib/rdkit.so":
>> dlopen(/Users/drew/anaconda3/envs/rdkit-psql-2021/lib/rdkit.so, 10):
>> Library not loaded: /usr/local/opt/freetype/lib/libfreetype.6.dylib
>>   Referenced from: /Users/drew/anaconda3/envs/rdkit-psql-2021/lib/rdkit.so
>>   Reason: image not found
>> chembl_28=#
>>
>> I'm using a Mac Mini 2018 with Big Sur version 11.2.3.  I created my
>> conda environment using the postgresql=12.2 option - haven't tried the
>> others but then the issue doesn't seem related to postgresql.
>>
>> I subsequently installed the 2020.03.3 version with postgresql=12.2 and
>> have had no problems.
>>
>> Thanks !
>>
>> Drew
>>
>>
>> On Fri, 26 Mar 2021 at 15:14, Greg Landrum <greg.land...@gmail.com>
>> wrote:
>>
>>> Dear all,
>>>
>>> I'm pleased to announce that the 2021.03 version of the RDKit is
>>> released. We actually managed to get the .03 release done during March.
>>> Shocking! ;-)
>>> The release notes are below.[1]
>>>
>>> The release files are on the github release page:
>>> https://github.com/rdkit/rdkit/releases/tag/Release_2021_03_1
>>> The DOI for this release is:
>>> https://doi.org/10.5281/zenodo.4639022
>>>
>>> I do not plan to do conda builds for the Python wrappers in the rdkit
>>> channel for this release. The builds done as part of the conda-forge
>>> project are automated and cover more Python versions and operating systems
>>> than I could ever hope to do manually.
>>> Please install the rdkit using conda-forge:
>>> conda install -c conda-forge rdkit
>>> I believe that the conda-forge builds of the new version should appear
>>> over the next couple of days.
>>>
>>> I hope to finish the conda builds of the PostgreSQL cartridge for linux
>>> and the mac and have them available in the rdkit channel by later today
>>> or tomorrow.
>>>
>>> The online version of the documentation at rdkit.org (
>>> http://rdkit.org/docs/index.html) has been updated.
>>>
>>> Thanks to everyone who submitted code, bug reports, and suggestions for
>>> this release!
>>>
>>> Please let me know if you find any problems with the release or have
>>> suggestions for the next one, which is scheduled for September/October 2021.
>>>
>>> Best Regards,
>>> -greg
>>> [1] We probably should figure out some way to make the release notes a
>>> bit less verbose. ;-)
>>>
>>>
>>> # Release_2021.03.1
>>> (Changes relative to Release_2020.09.1)
>>>
>>> ## Backwards incompatible changes
>>> - The distance-geometry based conformer generation now by defaults
>>> generates
>>>   trans(oid) conformations for amides, esters, and related structures.
>>> This can
>>>   be toggled off with the `forceTransAmides` flag in EmbedParameters.
>>> Note that
>>>   this change does not impact conformers created using one of the ET
>>> versions.
>>>   (#3794)
>>> - The conformer generator now uses symmetry by default when doing RMS
>>> pruning.
>>>   This can be disabled using the `useSymmetryForPruning` flag in
>>>   EmbedParameters. (#3813)
>>> - Double bonds with unspecified stereochemistry in the products of
>>> chemical
>>>   reactions now have their stereo set to STEREONONE instead of STEREOANY
>>> (#3078)
>>> - The MolToSVG() function has been moved from rdkit.Chem to
>>> rdkit.Chem.Draw
>>>   (#3696)
>>> - There have been numerous changes to the RGroup Decomposition code
>>> which change
>>>   the results. (#3767)
>>> - In RGroup Decomposition, when onlyMatchAtRGroups is set to false, each
>>> molecule
>>>   is now decomposed based on the first matching scaffold which adds/uses
>>> the
>>>   least number of non-user-provided R labels, rather than simply the
>>> first
>>>   matching scaffold.
>>>   Among other things, this allows the code to provide the same results
>>> for both
>>>   onlyMatchAtRGroups=true and onlyMatchAtRGroups=false when suitable
>>> scaffolds
>>>   are provided without requiring the user to get overly concerned about
>>> the
>>>   input ordering of the scaffolds. (#3969)
>>> - There have been numerous changes to
>>> `GenerateDepictionMatching2DStructure()` (#3811)
>>> - Setting the kekuleSmiles argument (doKekule in C++) to MolToSmiles
>>> will now
>>>   cause the molecule to be kekulized before SMILES generation. Note that
>>> this
>>>   can lead to an exception being thrown. Previously this argument would
>>> only
>>>   write kekulized SMILES if the molecule had already been kekulized
>>> (#2788)
>>> - Using the kekulize argument in the MHFP code will now cause the
>>> molecule to be
>>>   kekulized before the fingerprint is generated. Note that becaues
>>> kekulization
>>>   is not canonical, using this argument currently causes the results to
>>> depend
>>>   on the input atom numbering. Note that this can lead to an exception
>>> being
>>>   thrown. (#3942)
>>> - Gradients for angle and torsional restraints in both UFF and MMFF were
>>> computed
>>>   incorrectly, which could give rise to potential instability during
>>> minimization.
>>>   As part of fixing this problem, force constants have been switched to
>>> using
>>>   kcal/degree^2 units instead of kcal/rad^2 units, consistently with the
>>> fact that
>>>   angle and dihedral restraints are specified in degrees. (#3975)
>>>
>>> ## Highlights
>>> - MolDraw2D now does a much better job of handling query features like
>>> common
>>>   query bond types, atom lists, variable attachment points, and link
>>> nodes. It
>>>   also supports adding annotations at the molecule level, displaying
>>> brackets
>>>   for Sgroups, rendering the ABS flag for stereochemistry, and a new
>>> "comic"
>>>   mode.
>>> - There are two new Contrib packages: NIBRStructureFilters and
>>> CalcLigRMSD
>>> - There have been a number of improvements made to the R-Group
>>> Decomposition
>>>   code which make it both more flexible and considerably faster
>>>
>>> ## Acknowledgements
>>> Michael Banck, Christopher Von Bargen, Jason Biggs, Patrick Buder, Ivan
>>> Chernyshov, Andrew Dalke, Xiaorui Dong, Carmen Esposito, Nicholas Firth,
>>> Enrico
>>> Gandini, James Gayvert, Gareth Jones, Eisuke Kawashima, Steven Kearnes,
>>> Brian
>>> Kelley, Mark Mackey, Niels Kristian Kjærgård Madsen, Luca Naef, Dan
>>> Nealschneider, Jin Pan, Daniel Paoliello, António JM Ribeiro, Sereina
>>> Riniker,
>>> Braxton Robbason, Jaime Rodríguez-Guerra, Ricardo Rodriguez-Schmidt,
>>> Steve
>>> Roughley, Vincent F. Scalfani, Nadine Schneider, Philippe Schwaller, Dan
>>> Skatov,
>>> Pascal Soveaux, Paolo Tosco, Kazuya Ujihara, Riccardo Vianello, Shuzhe
>>> Wang,
>>> Piotr Wawrzyniak, Maciej Wójcikowski, Zhijiang Yang, Yutong Zhao
>>> 'driesvr', 'GintasKam', 'SPKorhonen', 'pkubaj', 'AnPallo', 'darintay',
>>> 'slchan3', 'Robins', 'sirbiscuit', 'amateurcat', 'noncomputable',
>>> 'yurivict',
>>> 'magattaca'
>>>
>>> ## Contrib updates:
>>>   - Added NIBRStructureFilters: a set of substructure filters for
>>> hit-list triaging together with python code for applying them. The filters
>>> are described in the publication
>>> https://dx.doi.org/10.1021/acs.jmedchem.0c01332
>>>    (github pull #3516 from NadineSchneider)
>>>   - Added CalcLigRMSD: flexible python code for calculating RMSD between
>>> pre-aligned molecules
>>>    (github pull #3812 from cespos)
>>>
>>> ## Bug Fixes:
>>>   - Casting int to uint in MorganFingerprintHelper leads to unexpected
>>> behaviour.
>>>  (github issue #1761 from SiPa13)
>>>   - MolChemicalFeature.GetPos() returns value for molecule's default
>>> conformer
>>>  (github issue #2530 from greglandrum)
>>>   - Unable to catch RDKit exceptions in linked library when compiling
>>> with fvisibility=hidden
>>>  (github issue #2753 from cdvonbargen)
>>>   - Reaction rendering always shows molecules in aromatic form
>>>  (github issue #2976 from greglandrum)
>>>   - Reactions setting unspecified double-bond stereo to STEREOANY
>>>  (github issue #3078 from ricrogz)
>>>   - PDB output flavor&2 documentation change
>>>  (github issue #3089 from adalke)
>>>   - WedgeMolBonds() should prefer degree-1 atoms
>>>  (github issue #3216 from greglandrum)
>>>   - Error in ChemAxon SMILES "parsing"
>>>  (github issue #3320 from IvanChernyshov)
>>>   - Incorrect number of radical electrons calculated for metals
>>>  (github issue #3330 from greglandrum)
>>>   - Problem with lifetime linkage of mols and conformers
>>>  (github issue #3492 from amateurcat)
>>>   - Traceback when pickling ROMol after BCUT descriptors are calculated
>>>  (github issue #3511 from d-b-w)
>>>   - Fix AUTOCORR2D descriptors
>>>  (github pull #3512 from ricrogz)
>>>   - SDMolSupplier requires several attempts to load a SDF file in Python
>>> 3.6/3.7
>>>  (github issue #3517 from jaimergp)
>>>   - Remove accidentally included boost header
>>>  (github pull #3518 from ricrogz)
>>>   - legend_height_ should be preserved after drawing the molecule
>>>  (github pull #3520 from greglandrum)
>>>   - remove the include directive for unused <access/tuptoaster.h> header
>>>  (github pull #3525 from rvianello)
>>>   - C++ build fails when configured with
>>> RDKIT_USE_BOOST_SERIALIZATION=OFF
>>>  (github issue #3529 from rvianello)
>>>   - Newest RDKIT version allowing chemically invalid smiles
>>>  (github issue #3531 from GintasKam)
>>>   - Behaviour of generate_aligned_coords for erroneous inputs
>>>  (github issue #3539 from dskatov)
>>>   - Drawing artifacts in draw_to_canvas_with_offset
>>>  (github issue #3540 from dskatov)
>>>   - Error adding PNG metadata when kekulize=False
>>>  (github issue #3543 from gayverjr)
>>>   - Add missing methods to remove SubstanceGroup attributes
>>>  (github pull #3547 from greglandrum)
>>>   - Error writing SDF data containing UTF-8 to a StringIO object
>>>  (github issue #3553 from greglandrum)
>>>   - correct handling of amide distances for macrocycles
>>>  (github pull #3559 from hjuinj)
>>>   - rdMolDraw2D, problems during generation of pictures from SMARTS,
>>> differences between Cairo and SVG
>>>  (github issue #3572 from wopozka)
>>>   - Fix example of SmilesToMol
>>>  (github pull #3575 from kazuyaujihara)
>>>   - atom/bond notes handle capital letters incorrectly
>>>  (github issue #3577 from greglandrum)
>>>   - Get MolDraw2DQt working again
>>>  (github pull #3592 from greglandrum)
>>>   - Scientific notation in SDF V3000 files
>>>  (github issue #3597 from mark-cresset)
>>>   - Fix: add missing python wrappers for MolDraw2DQt
>>>  (github pull #3613 from greglandrum)
>>>   - V3K mol block parser not saving the chiral flag
>>>  (github issue #3620 from greglandrum)
>>>   - Inconsistent metal disconnectors
>>>  (github issue #3625 from pschwllr)
>>>   - Ring stereochemistry not properly removed from N atoms
>>>  (github issue #3631 from greglandrum)
>>>   - moldraw2djs should not close all polygonal paths
>>>  (github pull #3634 from greglandrum)
>>>   - Unidentifiable C++ Exception with FMCS
>>>  (github issue #3635 from proteneer)
>>>   - Bump catch2 version to allow builds on Apple M1
>>>  (github pull #3641 from naefl)
>>>   - Segmentation fault when parsing InChI
>>>  (github issue #3645 from AnPallo)
>>>   - RDK_BUILD_THREADSAFE_SSS does not work as expected
>>>  (github issue #3646 from pascal-soveaux)
>>>   - Disabling MaeParser and CoordGen Support Breaks the Build
>>>  (github issue #3648 from proteneer)
>>>   - BondStereo info lost in FragmentOnBonds()
>>>  (github pull #3649 from bp-kelley)
>>>   - memory leak when sanitization fails in InChIToMol()
>>>  (github issue #3655 from greglandrum)
>>>   - Qt GUI libraries being linked into rdmolops.so when Qt support is
>>> enabled
>>>  (github issue #3658 from ricrogz)
>>>   - Documentation of Chem.rdmolops.GetMolFrags's frag argument is wrong
>>>  (github issue #3670 from noncomputable)
>>>   - fmcs() + bogus input causes engine crash
>>>  (github issue #3687 from robins)
>>>   - qmol_from_ctab() with NULL crashes engine
>>>  (github issue #3688 from robins)
>>>   - qmol_from_smiles() + bogus input causes engine crash
>>>  (github issue #3689 from robins)
>>>   - Check PIL support for tostring and fromstring
>>>  (github pull #3690 from sirbiscuit)
>>>   - Move MolToSVG() to rdkit.Chem.Draw (Addresses #3694)
>>>  (github pull #3696 from ricrogz)
>>>   - Pandas AttributeError when rendering Molecule in DataFrame
>>>  (github issue #3701 from enricogandini)
>>>   - Memory leak in EnumerateLibrary
>>>  (github issue #3702 from jose-mr)
>>>   - Fix to add ZLIB_INCLUDE_DIRS for Windows build
>>>  (github pull #3714 from kazuyaujihara)
>>>   - Docs/Book: Unexpected unicode character makes pdflatex build fail
>>>  (github issue #3738 from mbanck)
>>>   - Test suite failures if eigen3 is not available
>>>  (github issue #3740 from mbanck)
>>>   - Regression in depiction of double bonds in aromatic rings
>>>  (github issue #3744 from ptosco)
>>>   - RGD with RGroupMatching.GA leaks memory and takes too long
>>>  (github issue #3746 from ptosco)
>>>   - Fix comment to match the code in RemoveHsParameters
>>>  (github pull #3747 from jasondbiggs)
>>>   - Inconsistent canonical tautomer on repeated application
>>>  (github issue #3755 from darintay)
>>>   - bonds no longer highlighted in substruct matches in jupyter
>>>  (github issue #3762 from greglandrum)
>>>   - SubstanceGroup output doesn't correctly quote " symbols
>>>  (github issue #3768 from greglandrum)
>>>   - MolToSmarts inverts direction of dative bond
>>>  (github issue #3774 from IvanChernyshov)
>>>   - Regression in dihedral constraints
>>>  (github issue #3781 from ptosco)
>>>   - Fix pillow error in IPythonConsole.py
>>>  (github pull #3783 from skearnes)
>>>   - lock swig version in MacOS CI builds
>>>  (github pull #3789 from greglandrum)
>>>   - DrawMorganBit errors when useSVG is False
>>>  (github issue #3796 from ncfirth)
>>>   - SubstructLibrary Cached Smiles Holders have bad behavior with bad
>>> smiles
>>>  (github issue #3797 from bp-kelley)
>>>   - MolFromSmiles('[He]') produces a diradical helium atom
>>>  (github issue #3805 from jasondbiggs)
>>>   - NaNs from AUTOCORR2D descriptor
>>>  (github issue #3806 from greglandrum)
>>>   - MaeMolSupplier throws an invariant exception on parsing an
>>> "undefined" chirality label
>>>  (github issue #3815 from ricrogz)
>>>   - Sanitize molecules when SMILES needs to be produced in PandasTools
>>>  (github pull #3818 from mwojcikowski)
>>>   - Tautomer Query copy constructor is shallow not deep causing
>>> segfaults in destructor
>>>  (github issue #3821 from bp-kelley)
>>>   - OptimizeMolecule and OptimizeMoleculeConfs Argument Bug
>>>  (github issue #3824 from xiaoruiDong)
>>>   - rdMolEnumerator.Enumerate() fragile w.r.t. atom ordering
>>>  (github issue #3844 from greglandrum)
>>>   - MinimalLib: Bonds are parallel in SVG but not on an HTML5 Canvas
>>>  (github issue #3852 from dskatov)
>>>   - AddHs creates H atom with nan coordinates on edge case 2D structure
>>>  (github issue #3854 from ricrogz)
>>>   - Build error with static boost libraries (v1.73)
>>>  (github issue #3865 from nielskm)
>>>   - Make sure that added R-groups have non-zero coordinates
>>>  (github pull #3877 from ptosco)
>>>   - Bad H coordinates on fused ring
>>>  (github issue #3879 from greglandrum)
>>>   - SubstructLibrary needs to check bond ring queries as well
>>>  (github issue #3881 from bp-kelley)
>>>   - Fixes Amine.Tertiary.Aromatic definition
>>>  (github pull #3883 from bp-kelley)
>>>   - inconsistency in seedSmarts in FMCS between and
>>> GetSubstructureMatches
>>>  (github issue #3886 from proteneer)
>>>   - PandasTools.RGroupDecomposition throws an error when
>>> redraw_sidechains is set to True.
>>>  (github pull #3888 from greglandrum)
>>>   - Dev/update glare to py3
>>>  (github pull #3892 from bp-kelley)
>>>   - ConfGen: Macrocycle torsion terms not being used with fused
>>> macrocycles
>>>  (github pull #3894 from greglandrum)
>>>   - Broken KNIME link in README
>>>  (github issue #3897 from yurivict)
>>>   - Change class to struct for forward declaration
>>>  (github pull #3906 from bp-kelley)
>>>   - Fixes issues with unlabelled groups on aromatic nitrogens
>>>  (github pull #3908 from ptosco)
>>>   - Fix #3659 regression introduced in #3832
>>>  (github pull #3909 from ricrogz)
>>>   - Error rendering SMARTS queries with atom OR lists
>>>  (github issue #3912 from greglandrum)
>>>   - MoDraw2D: Get tests working without freetype
>>>  (github pull #3923 from greglandrum)
>>>   - RGD default scoring function does not always work as expected
>>>  (github issue #3924 from jones-gareth)
>>>   - MolDraw2D: relative font size changes with bond lengths in molecule
>>>  (github issue #3929 from greglandrum)
>>>   - MolDraw2D: coordinates for reactions not being used
>>>  (github issue #3931 from greglandrum)
>>>   - Follow-on patch for changes in #3899
>>>  (github issue #3932 from greglandrum)
>>>   - Fix MolDraw2DQt exports
>>>  (github pull #3935 from ricrogz)
>>>   - Fix building JavaWrappers on Windows, dynamic linking
>>>  (github pull #3936 from ricrogz)
>>>   - Boost header warnings when compiling
>>>  (github issue #3956 from jasondbiggs)
>>>   - Adds removeAllHydrogenRGroupsAndLabels and fixes kekulization issues
>>>  (github pull #3944 from ptosco)
>>>   - MolToJSONData fails when mol has a property that can't be stringified
>>>  (github issue #3956 from jasondbiggs)
>>>   - RWMol should reset(), not release(), dp_delAtoms and dp_delBonds
>>>  (github pull #3970 from greglandrum)
>>>
>>>
>>> ## New Features and Enhancements:
>>>   - add context managers for writers
>>>  (github issue #2217 from greglandrum)
>>>   - MolToSmiles(kekuleSmiles=True) gives SMILES with aromatic bonds
>>>  (github issue #2788 from adalke)
>>>   - allow specification of color map when drawing similarity maps
>>>  (github issue #2904 from greglandrum)
>>>   - Clean up CMake files
>>>  (github pull #3417 from e-kwsm)
>>>   - Speed up GraphMol/Chirality.cpp/iterateCIPRanks
>>>  (github pull #3482 from jinpan)
>>>   - Removes function which is an exact duplicate of another function
>>>  (github pull #3524 from ptosco)
>>>   - A couple of minor improvements to FindCairo
>>>  (github pull #3535 from ptosco)
>>>   - Give a bit more time to RGD test in debug builds
>>>  (github pull #3536 from ptosco)
>>>   - A couple of fixes to the build system
>>>  (github pull #3538 from ptosco)
>>>   - Modularized WASM module
>>>  (github issue #3561 from dskatov)
>>>   - A couple changes to speedup bulk similarity calculations from Python
>>>  (github pull #3574 from greglandrum)
>>>   - add documentation for the JS wrappers
>>>  (github pull #3583 from greglandrum)
>>>   - add a "comic mode" to MolDraw2D
>>>  (github pull #3584 from greglandrum)
>>>   - Add rendering of SGroup brackets to MolDraw2D
>>>  (github pull #3586 from greglandrum)
>>>   - Update Install.md
>>>  (github pull #3589 from slchan3)
>>>   - Add explicit support for remaining CTAB query bond types
>>>  (github issue #3599 from greglandrum)
>>>   - update Cookbook stereochemistry examples
>>>  (github pull #3604 from vfscalfani)
>>>   - Add support for rendering SGroup data fields to MolDraw2D
>>>  (github pull #3619 from greglandrum)
>>>   - Support rendering the "ABS" flag in MolDraw2D
>>>  (github issue #3623 from greglandrum)
>>>   - Support drawing some query bonds
>>>  (github pull #3624 from greglandrum)
>>>   - Support rendering variable attachment points
>>>  (github pull #3626 from greglandrum)
>>>   - add configuration option to disable atom symbols in the rendering
>>>  (github pull #3630 from greglandrum)
>>>   - Render link nodes in MolDraw2D
>>>  (github issue #3637 from greglandrum)
>>>   - First pass at MolZip (now with bond stereo!)
>>>  (github pull #3644 from bp-kelley)
>>>   - Add molecule annotations/notes to MolDraw2D
>>>  (github pull #3651 from greglandrum)
>>>   - support setting MolDraw2DOptions using JSON from Python
>>>  (github pull #3660 from greglandrum)
>>>   - Make the scope control for Qt more idiomatic
>>>  (github pull #3663 from d-b-w)
>>>   - Expanded MolEnumerator functionality
>>>  (github pull #3664 from greglandrum)
>>>   - add support for generating pattern fps for MolBundles
>>>  (github pull #3665 from greglandrum)
>>>   - Add a callback function to EmbedParameters struct
>>>  (github issue #3667 from jasondbiggs)
>>>   - update SequenceParsers.cpp
>>>  (github pull #3683 from magattaca)
>>>   - MCS: extend completeRingsOnly to cover atoms as well
>>>  (github issue #3693 from driesvr)
>>>   - Add Molbundle search to SWIG
>>>  (github pull #3698 from jones-gareth)
>>>   - Added getMessage method to exceptions
>>>  (github pull #3700 from sroughley)
>>>   - add context manager for MolSuppliers
>>>  (github issue #3703 from greglandrum)
>>>   - Make better use of strictParsing for SGroups
>>>  (github pull #3705 from ptosco)
>>>   - Allow using  POPCNT on big-endian ppc64
>>>  (github pull #3727 from pkubaj)
>>>   - Cleanup: remove fromstring and tostring from functions working with
>>> pillow
>>>  (github issue #3730 from greglandrum)
>>>   - Set strictParsing to false in MinimalLib
>>>  (github pull #3737 from ptosco)
>>>   - 3D MCS - Minimal version, no refactoring
>>>  (github pull #3749 from robbason)
>>>   - Include Winsock2.h instead of Windows.h in DebugTrace.h
>>>  (github pull #3756 from dpaoliello)
>>>   - R group match any issue
>>>  (github pull #3767 from jones-gareth)
>>>   - Support new coordgen option to not always make bonds to metals
>>> zero-order
>>>  (github pull #3769 from greglandrum)
>>>   - DistanceGeometry: add flag to enforce trans amides
>>>  (github pull #3794 from greglandrum)
>>>   - MolDraw2D: first pass at rendering atom lists
>>>  (github pull #3804 from greglandrum)
>>>   - Issue a warning when embedding a molecule with no Hs
>>>  (github pull #3807 from greglandrum)
>>>   - Add tautomer query to the substructlibrary
>>>  (github pull #3808 from bp-kelley)
>>>   - Enhanced generateDepictionMatching2DStructure functionality
>>>  (github pull #3811 from ptosco)
>>>   - Confgen: add option to use symmetry when doing RMS pruning
>>>  (github pull #3813 from greglandrum)
>>>   - Remove boost::foreach from public headers
>>>  (github pull #3820 from ricrogz)
>>>   - Adds isotopeLabels and dummyIsotopeLabels MolDrawOptions
>>>  (github pull #3825 from ptosco)
>>>   - Added 2 Cookbook examples
>>>  (github pull #3831 from vfscalfani)
>>>   - Separate MolDraw2DQt into its own library
>>>  (github pull #3832 from d-b-w)
>>>   - Facilities for interactive modification of molecule drawing
>>>  (github pull #3833 from SPKorhonen)
>>>   - cleanup a bunch of compiler warnings
>>>  (github pull #3849 from greglandrum)
>>>   - add a new mol draw option to draw wedge bonds with a single color
>>>  (github pull #3860 from jasondbiggs)
>>>   - Add Kier Phi descriptor
>>>  (github pull #3864 from greglandrum)
>>>   - Add basic support for hydrogen bonds
>>>  (github pull #3871 from greglandrum)
>>>   - Allow batch editing of molecules: removal only
>>>  (github pull #3875 from greglandrum)
>>>   - Allow retrieving the _ErGAtomTypes property from Python
>>>  (github pull #3878 from ptosco)
>>>   - Exposes InsertMol to python RWMol
>>>  (github pull #3907 from bp-kelley)
>>>   - Use https for Avalon and Inchi downloads
>>>  (github pull #3915 from ptosco)
>>>   - support empty/missing SDT lines for SGroup data
>>>  (github pull #3916 from greglandrum)
>>>   - Cookbook entries should be updated
>>>  (github issue #3917 from greglandrum)
>>>   - MolDraw2D: support changing annotation colours
>>>  (github pull #3919 from greglandrum)
>>>   - include context managers for the multithreaded suppliers too
>>>  (github pull #3920 from greglandrum)
>>>   - Documentation cleanup and update
>>>  (github pull #3922 from greglandrum)
>>>   - remove an MSVC++ warning caused by #3849
>>>  (github pull #3927 from greglandrum)
>>>   - Adds removeAllHydrogenRGroupsAndLabels and fixes kekulization issues
>>>  (github pull #3944 from ptosco)
>>>   - Remove temporary labels from RGD results
>>>  (github pull #3947 from ptosco)
>>>   - appended a new project depend on RDKit
>>>  (github pull #3955 from kotori-y)
>>>   - Do not add unnecessary R-labels (and an optimization)
>>>  (github pull #3969 from ptosco)
>>>   - Add return codes and make RGroupDecomp less verbose
>>>  (github pull #3971 from bp-kelley)
>>>   - update to coordgen 2.0.0
>>>  (github pull #3974 from greglandrum)
>>>
>>>
>>> ## Deprecated code (to be removed in a future release):
>>> - The "minimizeOnly" option for coordgen will be removed in the next
>>> RDKit release
>>>
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>>
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