diff --git a/doc/overview/issues.qbk b/doc/overview/issues.qbk
index 34ac6b22d..8c96b5641 100644
--- a/doc/overview/issues.qbk
+++ b/doc/overview/issues.qbk
@@ -65,8 +65,6 @@ as a better approximation for very large degrees of freedom?
 
 [h4 Feature Requests]
 
-We have a request for the Lambert W function, see [@https://svn.boost.org/trac/boost/ticket/11027 #11027].
-
 The following table lists distributions that are found in other packages
 but which are not yet present here, the more frequently the distribution
 is found, the higher the priority for implementing it:
diff --git a/doc/overview/roadmap.qbk b/doc/overview/roadmap.qbk
index 6f2a9fd6b..96806f8b0 100644
--- a/doc/overview/roadmap.qbk
+++ b/doc/overview/roadmap.qbk
@@ -7,6 +7,18 @@ All bug reports including closed ones can be viewed
 [@https://svn.boost.org/trac/boost/query?status=assigned&status=closed&status=new&status=reopened&component=math&col=id&col=summary&col=status&col=type&col=milestone&col=component&order=priority here]
 and [@https://github.com/boostorg/math/issues?utf8=%E2%9C%93&q=is%3Aissue here].
 
+[h4 Math-2.8.1 (Boost-1.70)]
+
+* Move `numerical_differentiation.hpp` from `boost/math/tools/` to `boost/math/differentiation/finite_difference.hpp`.
+* Add mean, variance, skewness, kurtosis, median, Gini coefficient, and median absolute deviation to `tools/univariate_statistics.hpp`.
+* Add correlation coefficients and covariance to `tools/bivariate_statistics.hpp`
+* Add absolute Gini coefficient, Hoyer sparsity, oracle SNR, and the /M/[sub 2]/M/[sub 4] SNR estimator to `tools/signal_statistics.hpp`.
+* Add total variation, l0, l1, l2, and sup norms, as well as corresponding distance functions to `tools/norms.hpp`.
+* Add move constructors for polynomials, support complex coefficients, add `.prime()` and `.integrate()` methods.
+* Add `quadratic_roots` to `tools/roots.hpp`.
+* Add support for complex-valued functions to Newton's method in `roots.hpp`.
+* Add Catmull-Rom interpolator.
+
 [h4 Math-2.8.0 (Boost-1.69)]
 
 * Add LambertW functions.