NEWS
====

v2.2
Version 2.2, released in Feb 2015, contains new facilities for
sub-optimal path analysis of biomolecular correlation networks,
constructing biological units, identification and tidying of
malformed PDB files, and improved secondary structure annotation of
'pdbs' objects and various plots.  We have also updated and enhanced
atom selection functionality and developed a new vignette detailing
PDB structure manipulation and analysis facilities. For a fine-
grained list of changes, or to report a bug, please consult:

* [The issues log](https://bitbucket.org/Grantlab/bio3d/issues)
* [The commit log](https://bitbucket.org/Grantlab/bio3d/commits/all)

Major new functions include:
* cnapath: Suboptimal Path Analysis for Correlation Networks
* biounit: Biological Unit Construction
* clean.pdb: Inspect And Clean Up A PDB Object
* cat.pdb: Concatenate Multiple PDB Objects
* pdb2sse: Obtain An SSE Sequence Vector From A PDB Object
* bounds.sse: Obtain A SSE Object From An SSE Sequence Vector
* aa.table: Updated amino acid reference data that replaces older 'aa.mass'
* as.fasta: Convert alignment/sequence in matrix/vector format to a FASTA object.
* as.pdb: Convert coordinate data to PDB format
* as.select: Convert atomic indices to a atom.select object
* as.xyz: Convert vectors and matrices to 'xyz' class objects
* atom.select.pdb: Atom selection from PDB objects has been extensively updated
* basename.pdb: Utility for manipulation of PDB file names
* check.utility: Check and Report on Missing Bio3D Utility Programs
* cmapt: Update contact map methods for pdb and xyz objects
* cna: Update correlation network analysis methods for dccm and ensmb objects"
* cnapath: Suboptimal Path Analysis for Correlation Networks
* com: Updated center of mass methods for pdb and xyz objects
* combine.select: Combine atom.select objects, renamed from previous 'combine.sel'
* cov.enma: New method to Calculate Covariance Matrix from Ensemble Normal Modes"
* cov2dccm: Calculates the N-by-N cross-correlation matrix from a 3N-by-3N covariance matrix
* covsoverlap: New methods for nma and enma objects
* dm: Distance matrix gets new methods for pdb and xyz class objects
* dssp: Secondary Structure Analysis with DSSP gets new methods for pdb, xyz and pdbs class objects
* geostas: Geometrically stable domain finder gets new methods for nma, enma, pdb, pdbs and xyz objects.
* is.pdbs: Is an Object of Class pdbs
* mono.colors: New color palette
* pdb2sse: Obtain An SSE Sequence Vector From A PDB Object
* pdbfit: Coordinate superposition gets new methods for multi-model pdb objects and pdbs objects.
* read.crd: Can Now Read Coordinate Data from Amber or CHARMM
* read.prmtop: Read AMBER Parameter/Topology files
* var.pdbs: Pairwise Distance Variance in Cartesian Coordinates
* plot:  New or updated plot methods for 'cmap', 'geostas', and 'pca' class objects as well as a new plot.fluct() function that expands on plot.bio3d() for plotting atomic fluctuations from MD and NMA results.
* print:  New print methods for cnapath, enma, geostas, mol2, nma, pca, pdb, prmtop, rle2,  select and sse objects.


v2.1
----
Version 2.1, released in Sep 2014,  contains new facilities for Correlation
Network Analysis (cna) and Geometrically Stable Domain finding (geostas).
We have also changed 'PDB object data' storage from a matrix to a data.frame
format. Improved methods and functionality for ensemble NMA are now also
included along with extensive improvements to package vignettes and function
documentation. For a fine-grained list of changes, or to report a bug,
please consult:

* [The issues log](https://bitbucket.org/Grantlab/bio3d/issues)
* [The commit log](https://bitbucket.org/Grantlab/bio3d/commits/all)

Major new functions include:
* cna: Protein Dynamic Correlation Network Construction and Community Analysis.
* plot.cna: Protein Structure Network Plots in 2D and 3D.
* print.cna: Summarize and Print Features of a cna Network Graph
* identify.cna: Identify Points in a CNA Protein Structure Network Plot
* layout.cna: Protein Structure Network Layout
* view.cna: View CNA Protein Structure Network Community Output in VMD
* prune.cna: Prune A cna Network Object
* community.tree: Reconstruction of the Girvan-Newman Community Tree for a CNA Class Object.
* network.amendment: Amendment of a CNA Network According To A Input Community Membership Vector.
* lmi: Linear Mutual Information Matrix
* dccm.pca: Dynamic Cross-Correlation from Principal Component Analysis
* filter.dccm: Filter for Cross-correlation Matrices (Cij)
* cmap.filter: Contact Map Consensus Filtering
* geostas (amsm.xyz): GeoStaS Domain Finder
* bhattacharyya Bhattacharyya Coefficient
* covsoverlap: Covariance Overlap
* sip: Square Inner Product
* cov.nma: Calculate Covariance Matrix from Normal Modes
* mktrj.enma: Ensemble NMA Atomic Displacement Trajectory
* pca.array: Principal Component Analysis of an array of matrices
* hmmer: HMMER Sequence Search
* plot.hmmer: Plot a Summary of HMMER Hit Statistics.
* uniprot: Fetch UniProt Entry Data.
* pfam: Download Pfam FASTA Sequence Alignment
* hclustplot: Dendrogram with Clustering Annotation
* write.pir: Write PIR Formated Sequences
* mustang: Structure-based Sequence Alignment with MUSTANG
* pdbs.filter: Filter or Trim a pdbs PDBs Object
* dssp.pdbs: Secondary Structure Analysis of Aligned PDB Structures with DSSP
* plot.fasta: Plot a Multiple Sequence Alignment
* print.fasta: Printing Sequence Alignments
* inspect.connectivity: Check the Connectivity of Protein Structures
* var.xyz: Pairwise Distance Variance in Cartesian Coordinates
* is.xyz(as.xyz, print.xyz): Is an Object of Class
* setup.ncore: Setup for Running Bio3D Functions using Multiple CPU Cores

v2.0
----
Version 2.0, released in Nov 2013, contains over 30 new functions including
enhanced Normal Mode Analysis facilities as well extensive improvements to
existing code and documentation. For a fine-grained list of changes or to
report a bug, please consult:

* [The issues log](https://bitbucket.org/Grantlab/bio3d/issues)
* [The commit log](https://bitbucket.org/Grantlab/bio3d/commits/all)

Major new functions include:
* aa2mass: Amino Acid Residues to Mass Converter
* atom.index: Index of Atomic Masses
* atom2mass(atom2ele, formula2mass): Atom Names to Mass Converter
* binding.site: Binding Site Residues
* com(com.xyz): Center of Mass
* combine.sel: Combine Atom Selections From PDB Structure
* dccm.enma: Cross-Correlation for Ensemble NMA (eNMA)
* dccm.mean: Filter DCCM matrices
* dccm.nma: Dynamic Cross-Correlation from Normal Modes Analysis
* dccm.xyz: DCCM: Dynamical Cross-Correlation Matrix
* deformation.nma: Deformation Analysis
* dssp.trj: Secondary Structure Analysis of Trajectories with DSSP
* fluct.nma: NMA Fluctuations
* inner.prod: Mass-weighted Inner Product
* is.pdb: Is an Object of Class pdb
* is.select: Is an Object of Class atom.select
* load.enmff(ff.calpha, ff.calphax, ff.anm, ff.pfanm, ff.sdenm, ff.reach): ENM Force Field Loader
* mktrj.nma: NMA Atomic Displacement Trajectory
* nma(build.hessian, print.nma): Normal Mode Analysis
* nma.pdbs(print.enma): Ensemble Normal Mode Analysis
* normalize.vector: Mass-Weighted Normalized Vector
* pdb.annotate: Get Customizable Annotations From PDB
* pdb2aln: Align a PDB structure to an existing alignment
* pdb2aln.ind: Mapping between PDB atomic indices and alignment positions
* pdbfit: PDB File Coordinate Superposition
* pdbs2pdb: PDBs to PDB Converter
* plot.enma: Plot eNMA Results
* plot.nma: Plot NMA Results
* plot.rmsip: Plot RMSIP Results
* read.mol2: Read MOL2 File
* sdENM: Index for the sdENM ff
* sse.bridges: SSE Backbone Hydrogen Bonding
* struct.aln: Structure Alignment Of Two PDB Files
* view.dccm: Visualization of Dynamic Cross-Correlation
* view.modes: Vector Field Visualization of Modes
* vmd.colors: Color as in VMD Molecular Viewer


Versioning
----------

Releases will be numbered with the following semantic versioning format:

<major>.<minor>-<patch>

E.g.: 2.0-1

And constructed with the following guidelines:

* Breaking backward compatibility bumps the major (and resets the minor
  and patch)
* New additions without breaking backward compatibility bumps the minor
  (and resets the patch)
* Bug fixes and misc changes bumps the patch

For more information on SemVer, please visit http://semver.org/.


-----

For changes prior to v1.1-6 (Apr 2013) please see the bio3d wki:
* [Whats new wki page](http://bio3d.pbworks.com/w/page/7824486/WhatsNew)
