This is an announcement for the paper "Stochastic evolution equations in UMD Banach spaces" by J.M.A.M. van Neerven, M.C. Veraar, and L. Weis. Abstract: We discuss existence, uniqueness, and space-time H\"older regularity for solutions of the parabolic stochastic evolution equation \[\left\{\begin{aligned} dU(t) & = (AU(t) + F(t,U(t)))\,dt + B(t,U(t))\,dW_H(t), \qquad t\in [0,\Tend],\\ U(0) & = u_0, \end{aligned} \right. \] where $A$ generates an analytic $C_0$-semigroup on a UMD Banach space $E$ and $W_H$ is a cylindrical Brownian motion with values in a Hilbert space $H$. We prove that if the mappings $F:[0,T]\times E\to E$ and $B:[0,T]\times E\to \mathscr{L}(H,E)$ satisfy suitable Lipschitz conditions and $u_0$ is $\F_0$-measurable and bounded, then this problem has a unique mild solution, which has trajectories in $C^\l([0,T];\D((-A)^\theta)$ provided $\lambda\ge 0$ and $\theta\ge 0$ satisfy $\l+\theta<\frac12$. Various extensions of this result are given and the results are applied to parabolic stochastic partial differential equations. Archive classification: math.FA math.PR Mathematics Subject Classification: 47D06; 60H15; 28C20; 46B09 Remarks: Accepted for publication in Journal of Functional Analysis The source file(s), scp_arxiv.tex: 157532 bytes, is(are) stored in gzipped form as 0804.0932.gz with size 44kb. The corresponding postcript file has gzipped size 241kb. Submitted from: mark@profsonline.nl The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/0804.0932 or http://arXiv.org/abs/0804.0932 or by email in unzipped form by transmitting an empty message with subject line uget 0804.0932 or in gzipped form by using subject line get 0804.0932 to: math@arXiv.org.