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We have written a post, quite some time ago, about an R Stemmatology Package ((J.B. Camps, «An R Stemmatology Package ?», Sacré Gr@@l, 14 mai 2013, en ligne: https://graal.hypotheses.org/665)), and started its development (it is available on Github ((Jean-Baptiste Camps, Florian Cafiero, Stemmatology : an R Stemmatology package, Paris, 2013-…, en ligne: https://github.com/Jean-Baptiste-Camps/stemmatology))). Now, we come back to this long overdue subject, to draft a roadmap for future developments.NB: this is a working post, that will evolve in the course of development of this package.Main tasks1. Documentation Document all the existing functions, datasets (necessary for 2); Document new functions when they are added.2. R packaging Finish documentation; Other packaging tasks?3. Implementation of new exploratory methods / methods to detect contamination Finish implementation of methods presented in Camps 2013a et 2013b ((JB Camps, «Detecting Contaminations in Textual Traditions. Computer Assisted and Traditional Methods», unpublished paper presented to the International Medieval Congress, Leeds, 2013; Id., «Sélection des lieux variants et construction d’un stemma: nouvelles expérimentations», communication non publiée présentée au XXVII Congrès International de Linguistique et de Philologie Romanes, Nancy, 2013.)); Implement cardiograms from Wattel et Van Mulken 1996, Den Hollander 2004  ((See E. Wattel &#38; M.J.P. Van Mulken, « Schock Waves in Text Traditions, Cardiograms of the Medieval Litterature », in Studies in Stemmatology, P. Van Reenen, M.J.P. Van Mulken, Amsterdam, 1996, p.105-121; A.A. Den Hollander, « How shock waves revealed successive contamination. A cardiogram of early sixteenth-century Dutch Bibles. » in Studies in Stemmatology 2, dir. P. Van Reenen, A.A. Den Hollander &#38; M.J.P. Van Mulken, Amsterdam, 2004, p. 99-112. You can also have a look at our post, Florian Cafiero, «Le scandale du stemma contaminé. Note sur l’usage des cardiogrammes en philologie», Sacré Gr@@l, 18 décembre 2011, en ligne: https://graal.hypotheses.org/517.)); find and implement new methods.4. Implementation of new tree building algorithms Implementation of tree building algorithms, different from the PCC method ((Eric Poole, « The Computer in Determining Stemmatic Relationships », Computers and the Humanities 8-4 (1974), p. 207‑16; Id., « L’analyse stemmatique des textes documentaires », in La pratique des ordinateurs dans la critique des textes, Paris, 1979, p. 151‑161; Jean-Baptiste Camps et Florian Cafiero, « Genealogical variant locations and simplified stemma: a test case », in Analysis of Ancient and Medieval Texts and Manuscripts: Digital Approaches, dir. Tara Andrews &#38; Caroline Macé, Turnhout, 2015, p. 69‑93 (Lectio, 1).)), proposed by other researchers;5. Implementation of algorithms for theoretical stemmatology Implement a function for bifidity calculations.[cite]