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planetpack is a software tool that facilitates the detection and characterization of exoplanets from the radial velocity ( rv ) data , as well as basic tasks of long - term dynamical simulations in exoplanetary systems . the detailed description of the numeric algorithms implemented in planetpack is given in the paper @xcite , coming with its initial 1.0 release . after that several updates of the package were released , offering a lot of bug fixes , minor improvements , as well as moderate expansions of the functionality . as of this writing , the current downloadable version of planetpack is 1.8.1 . the current source code , as well as the technical manual , can be downloaded at ` http://sourceforge.net/projects/planetpack ` .    here we pre - announce the first major update of the package , planetpack 2.0 , which should be released in the near future . in addition to numerous bug fixes , this update includes a reorganization of the large parts of its architecture , and several new major algorithms . now we briefly describe the main changes . the following new features of the planetpack 2.0 release deserve noticing :    1 . multithreading and parallelized computing , increasing the performance of some computationally heavy algorithms . this was achieved by migrating to the new ansi standard of the c++ language , c++11 . several new models of the doppler noise can be selected by the user , including e.g. the regularized model from @xcite . this regularized model often helps to suppress the non - linearity of the rv curve fit . 3 .   the optimized computation algorithm of the so - called keplerian periodogram @xcite , equipped with an efficient analytic method of calculating its significance levels ( baluev 2014 , in prep . ) . 4 .   fitting exoplanetary transit lightcurves is now implemented in planetpack . this algorithm can fit just a single transit lightcurve , as well as a series of transits for the same star to generate the transit timing variation ( ttv ) data . these ttv data can be further analysed as well in order to e.g. reveal possible periodic variations indicating the presence of additional ( non - transiting ) planets in the system . the transit lightcurve model is based on the stellar limb darkening model by @xcite . also , the transit fitting can be performed taking into account the red ( correlated ) noise in the photometry data . some results of the planetpack ttv analysis of the photometric data from the exoplanet transit database , ` http://var2.astro.cz/etd/ ` , will be soon presented in a separate work . concerning the evolution of the planetpack code , we plan to further develop the transit and ttv analysis module and to better integrate it with the doppler analysis block . we expect that in a rather near future planetpack should be able to solve such complicated tasks as the simultaneous fitting of the rv , transit , and ttv data for the same star . this integration should also take into account subtle intervenue between the doppler and photometry measurements like the rositter - mclaughlin effect .
we briefly overview the new features of planetpack2 , the forthcoming update of planetpack , which is a software tool for exoplanets detection and characterization from doppler radial velocity data . among other things 
 , this major update brings parallelized computing , new advanced models of the doppler noise , handling of the so - called keplerian periodogram , and routines for transits fitting and transit timing variation analysis .