This is an announcement for the paper "On the extension of H\"{o}lder maps with values in spaces of continuous functions" by Gilles Lancien and Beata Randrianantoanina. Abstract: We study the isometric extension problem for H\"{o}lder maps from subsets of any Banach space into $c_0$ or into a space of continuous functions. For a Banach space $X$, we prove that any $\alpha$-H\"{o}lder map, with $0<\alpha\leq 1$, from a subset of $X$ into $c_0$ can be isometrically extended to $X$ if and only if $X$ is finite dimensional. For a finite dimensional normed space $X$ and for a compact metric space $K$, we prove that the set of $\alpha$'s for which all $\alpha$-H\"{o}lder maps from a subset of $X$ into $C(K)$ can be extended isometrically is either $(0,1]$ or $(0,1)$ and we give examples of both occurrences. We also prove that for any metric space $X$, the described above set of $\al$'s does not depend on $K$, but only on finiteness of $K$. Archive classification: Functional Analysis Mathematics Subject Classification: 46B20 (46T99, 54C20, 54E35) Remarks: 16 pages The source file(s), lancien-randrian.tex: 42206 bytes, is(are) stored in gzipped form as 0405565.gz with size 13kb. The corresponding postcript file has gzipped size 69kb. Submitted from: randrib@muohio.edu The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/math.FA/0405565 or http://arXiv.org/abs/math.FA/0405565 or by email in unzipped form by transmitting an empty message with subject line uget 0405565 or in gzipped form by using subject line get 0405565 to: math@arXiv.org.